Unofficial Royal Enfield Community Forum

Royal Enfield Motorcycles => Bullet with the UCE engine => Topic started by: prof_stack on February 21, 2011, 01:14:54 am

Title: Low Fuel Light Remains On
Post by: prof_stack on February 21, 2011, 01:14:54 am
Last week and today I noticed that the low fuel indicator light comes on while I am riding and definitely not in need of petrol.

Even after filling up after today's 80 mile ride, the low fuel light stayed lit.  Any ideas what might be needed to fix it?  It might go back to the dealer for them to wrestle with it, but there might be an easy fix that will save the trip.

Thanks!  btw, the last tank mileage was 66mpg, some of that sitting at long red lights.
Title: Re: Low Fuel Light Remains On
Post by: olhogrider on February 21, 2011, 01:30:34 am
Just wondering, does the light come on then you fill it and it stays on. Or does it come on when you have plenty of gas and then it stays on? This would really suck! without a trip odometer or a gauge your first indication of low fuel would be when you run out!
Title: Re: Low Fuel Light Remains On
Post by: Ducati Scotty on February 21, 2011, 03:26:23 am
Is the fuel light on and the 'Royal Enfield' light dark?  If so, the wires might just be switched.

Scott
Title: Re: Low Fuel Light Remains On
Post by: prof_stack on February 21, 2011, 03:36:30 am
Just wondering, does the light come on then you fill it and it stays on. Or does it come on when you have plenty of gas and then it stays on? This would really suck! without a trip odometer or a gauge your first indication of low fuel would be when you run out!

Last week the light came on and later went off and then return to being on.  Today it was just on, most of the time, even after a fillup.  The Enfield light is always on, so I don't think the wires are crossed.

Until last week there has not been a problem with the low fuel light.
Title: Re: Low Fuel Light Remains On
Post by: ScooterBob on February 21, 2011, 11:29:00 am
It's a warranty item - just get it replaced ....... Your dealer SHOULD have one in stock, so it'll be a half-hour repair if they can get you right in the door.
Title: Re: Low Fuel Light Remains On
Post by: Chris-G5 on February 21, 2011, 02:04:00 pm
I had the same problem last year. My low fuel light started staying on all the time. It was actually working in reverse, light on with good fuel level and light off when fuel level got low. ::) I contacted my dealer who is a couple hours away and he sent me a new one under warranty. I let the fuel level get low, put the bike on the side stand, and changed it out, very little fuel came out when I removed the old one.
Title: Re: Low Fuel Light Remains On
Post by: singhg5 on February 21, 2011, 03:14:40 pm
I let the fuel level get low, put the bike on the side stand, and changed it out, very little fuel came out when I removed the old one.

Smart idea to put the bike on the side stand so that the bike is leaning to the left - while the fuel sensor is on the right side, at the bottom rear of the tank.  Good thinking  ;).

May be one can raise the rear wheel slightly to move the fuel to the front of the tank so that fuel does not drain out.  Wedge the front wheel in a corner to avoid bike rolling forward, if the rear wheel is raised a bit.
Title: Re: Low Fuel Light Remains On
Post by: prof_stack on February 21, 2011, 03:22:45 pm
Thanks for the feedback.  I just left email with the shop owner, who has been very good about getting on my C5's issues. 
Title: Re: Low Fuel Light Remains On
Post by: Sub on April 11, 2011, 08:29:07 pm
I never had this problem before.. took the bike out of storage, went for a ride and noticed it was on.. with a full tank! :)
Title: Re: Low Fuel Light Remains On
Post by: REpozer on April 11, 2011, 10:13:32 pm
Fuel Light On

1) Put fuel in tank.
    a) light goes out.....ride.
2) Fuel light still on after a healthy fueling.
     b) Cover fuel light with black tape......ride.
Title: Re: Low Fuel Light Remains On
Post by: Ducati Scotty on April 11, 2011, 10:16:47 pm
I wonder if the sensor got gummed up in storage.  Run a tank or two through the bike and see if it self corrects.

Scott
Title: Re: Low Fuel Light Remains On
Post by: Sub on April 12, 2011, 10:34:48 pm
Will do!
Title: Re: Low Fuel Light Remains On
Post by: REpozer on April 13, 2011, 07:11:53 am
I forgot to ask.
 
Why do you need a low fuel light on a motorcycle?

Title: Re: Low Fuel Light Remains On
Post by: prof_stack on April 13, 2011, 02:30:19 pm
I forgot to ask.
 
Why do you need a low fuel light on a motorcycle?

Yeah, do it Steve McQueen's way as in The Great Escape and open the lid and shake the tank.   ;)

Remember, though, the petcock.  That wonderful little valve that allowed you a "reserve" amount of gasoline.  FI machines don't have such things.  The Buell Blast thumper was the last bike I had of this type.  While passing a semi on a windy stretch near the Columbia River the fuel cut out and I got to show my prowess in knowing by feel where and how to turn the petcock to reserve.  I think a warning light is better.   :o

Modern bikes (of which RE is sorta like) have tripmeters and warning lights (FI models) which most of us have gotten used to.  A bike with 1,300 miles (mine) should not have a glitch in this sytem, but it does and it will be replaced today or tomorrow.  I saw the part ($30 but under warranty) in the shop.  I fear that the problem is not solely in the actual float but in the connection inside the headlight assembly.  We'll see how it plays out.

Now, if I could remember how many miles were on the odometer when I last filled up there would be no need for such technology...
Title: Re: Low Fuel Light Remains On
Post by: GA-DK on April 13, 2011, 03:49:20 pm
I  keep an old check cover in my bike jacket pocket.  It contains a booklet i print out on the computer.  One side of each sheet has columns for date, service, quant, cost, odometer reading.  The back side of the page is blank but labled "Notes:".  I keep the same log in my Morgan Plus-8.  I log each service and fill-up.  I  generally get about 180 miles per fill-up on my G5, but am not out by a long shot.  Low fuel light only comes on when braking hard.  I generally do not wait for it to stay on when level.  With sidecar empty and hot riding too hard, I am getting 65 mpg (US gal).   I assume the 85 MPG in the bike specifications is based on imperial gallons.  Am I right?  GA-DK
Title: Re: Low Fuel Light Remains On
Post by: GreenMachine on April 13, 2011, 04:00:43 pm
we use to call those lights "idiot lights"...of course it depends who is analysing the lite indicator and what course of action is taken...In this case, looking and shaking the tank should relieve most of the responsibility associated with a error in judgement . ;D
Title: Re: Low Fuel Light Remains On
Post by: olhogrider on April 13, 2011, 04:59:51 pm
I want a trip meter. Also they should lose the gas pump and V-8 engine graphics. Words like "FUEL" and "ENGINE" would suffice. And what part is "SWISS"? Finally they should leave the red Royal Enfield logo unlit. I know what brand In ride and a glowing red light on the dash says "Something BAD" in my mind. Ok, rant off.
Title: Re: Low Fuel Light Remains On
Post by: Ducati Scotty on April 13, 2011, 11:31:01 pm
And what part is "SWISS"?

Swiss idiot lights!  The most precisely made and accurately reporting idiot lights IN THE WORLD!!!!

Scott
Title: Re: Low Fuel Light Remains On
Post by: SimonT on April 14, 2011, 12:28:01 am
i like the lit logo :)

i agree with the fuel and engine lights tho...esp the engine light.
if anything they should have the RE single engine up there :)
Title: Re: Low Fuel Light Remains On
Post by: Ducati Scotty on April 14, 2011, 04:05:42 am
Engine and fuel need to be translated for different markets.  Pictures work everywhere.  Yes, a nice single cylinder would be much prettier.

Scott
Title: Re: Low Fuel Light Remains On
Post by: olhogrider on April 15, 2011, 05:38:05 pm
English words for anEnglish (style) motorcycle. English is also an official language of India. The rest of the world is a pretty tiny portion of their market. Was the ammeter labeled "amps" or some lightning bolt representing electricity?
Title: Re: Low Fuel Light Remains On
Post by: Ducati Scotty on April 15, 2011, 09:42:06 pm
Ok, ok :P  But I don't want my other bikes coming with Japanese, German, or Italian on them.  ;)

Scott
Title: Re: Low Fuel Light Remains On
Post by: GreenMachine on April 15, 2011, 09:59:40 pm
is English the official recognized language in India.. i know they have quite a few dialect of Hindi? If they have, they way ahead of us... ;D
Title: Re: Low Fuel Light Remains On
Post by: ToesNose on April 17, 2011, 03:10:38 am
Hindi is the official national language, but there are regional languages such as Bengali, Telugu, Marathi, Tamil, Gujarati, Kannada, Malayalam and Punjabi.  It's not even 100 years yet since India gained it's independence and each "state" which used to be it's own country had different official languages. So it's been a slow process to make Hindi the main language used throughout the country.

Oh and English is widely accepted and more or less the official language in the business world here, especially the IT industry.  :D
Title: Re: Low Fuel Light Remains On
Post by: olhogrider on April 17, 2011, 05:40:17 pm
Ok, ok :P  But I don't want my other bikes coming with Japanese, German, or Italian on them.  ;)

Scott

I always liked Italian on my Alfas. Inezione (sp?) instead of fuel injection or Veloce instead of fast.
Title: Re: Low Fuel Light Remains On
Post by: kingrock on August 08, 2011, 04:19:47 am
Mine just came on to. I looked in the tank before I started today. With an explosion proof flashlight.( explosion resistant ). So from this link it is only going to the tank. Instead of black tape, a black sharpie will fill in nicely.  ;)
Title: Re: Low Fuel Light Remains On
Post by: BrashRooster on August 08, 2011, 07:44:39 am
My 1982 Yamaha XJ650 Maxin has a speedo from who knows what that I had to replace the stock one with when I roached it. Problem is this pretty little chrome speedo has a broken trip reset and the odo is stuck at exactly 1000 miles. Sure it has a reserve but I live out in the country. How many miles back to a filling station? I can see how one would be rather atached to the low fuel indictor light when there is no reserve. I get worried with a reserve!
Title: Re: Low Fuel Light Remains On
Post by: prof_stack on August 08, 2011, 02:25:05 pm
My 1982 Yamaha XJ650 Maxin has a speedo from who knows what that I had to replace the stock one with when I roached it. Problem is this pretty little chrome speedo has a broken trip reset and the odo is stuck at exactly 1000 miles. Sure it has a reserve but I live out in the country. How many miles back to a filling station? I can see how one would be rather atached to the low fuel indictor light when there is no reserve. I get worried with a reserve!
The lack of a tripmeter is something RE should change even if they keep the old-style cable run odometer.  I've thought of writing and taping the mileage of the last fillup on the chrome bar on the "triple-tree".  But the sensor has been fine since it was replaced under warranty.
Title: Re: Low Fuel Light Remains On
Post by: Raj V on August 08, 2011, 04:43:10 pm
According to the federal constitution, Hindi is the official language and English the "subsidiary official language". The details are mired in politics (http://en.wikipedia.org/wiki/Languages_with_official_status_in_India).

Each state also recognizes its own official language.
Title: Re: Low Fuel Light Remains On
Post by: barenekd on August 08, 2011, 05:00:39 pm
The low fuel light is actually a warning light so you don't run the gas too low and fry the fuel pump. This is from Kevin. If it's staying on it may be sticking for old gas. Fresh gas may eventually loosen it up. the thing is totally simple. there is a ring of some flotation material around a shaft. The ring of material slides up and down the shaft as the fuel level changes. When it touches the base of the shaft, it closes a connection that turn the light on.  In it's normal operation as it's set up it should blink on and off most of the time once it starts to touch the base as the splashing fuel will keep it jouncing around. There is no physical connection to any other part in the tank or AFAIK, any other component in the system.
You can run a tank of gas or two through it and see if that loosens it up, or you can remove it and clean it, or see if it's actually broken. There is no gasket on it, per se, so be sure to use some thread sealer on it when you replace it!
As for a trip meter, I use a black erasable marker and write the fill up mileage on the chrome handlebar bracket.
Title: Re: Low Fuel Light Remains On
Post by: Arizoni on August 09, 2011, 12:04:56 am
I've noticed that around 150 miles from the last fillup the low fuel warning light blinks when I am braking because the fuel sloshes forward in the tank.

When this starts happening I just plan on topping off the tank at my next convenient time.

This usually ends up with me adding somewhere around 2 gallons of gas which (if the book and my calculations are right) means I still have around 1.8 gallons of fuel left in the tank.

After reading about several of the members writing down the mileage on the chrome handlebar clamp I've taken to doing this too.   Works great.
Title: Re: Low Fuel Light Remains On
Post by: Ducati Scotty on August 09, 2011, 12:14:06 am
I find it starts flashing once in a while pretty soon after a fill up.  I usually wait until it's on most or all of the time until I fill up, usually around 3 gallons and 150 miles or so.

Scott
Title: Re: Low Fuel Light Remains On
Post by: GlennF on August 09, 2011, 12:17:03 am
There definitely were Smiths with trip meters back in the day.

Haven't come across any modern replica's with trip meters though.
Title: Re: Low Fuel Light Remains On
Post by: BrashRooster on August 12, 2011, 04:37:48 am
I find it starts flashing once in a while pretty soon after a fill up.  I usually wait until it's on most or all of the time until I fill up, usually around 3 gallons and 150 miles or so.

Scott
b

My new B5 started doing a flashing fuel light on tues day the very first day I got it. I pit aprox 2 gallons of fuel an it stoped. Sense the  the light seems to flick on for a second at stops or take offs but not always. Some times it in curves, up and down hills and bumps. I live in the country with lots of hills, curves, bumps and stops. I hope its just a thing with my bike and the fuel sloshing. Warenty would cover it if other wise but if I know it wont lead to a real issue I dont care. I would just count it as part of my bikes personality. As long as it doesn't stay on and it comes on when it suposed to. I dont want a indicator to be always lit or never actualy come on when it suposed to that would suck.
Title: Re: Low Fuel Light Remains On
Post by: Ducati Scotty on August 12, 2011, 03:52:11 pm
Sounds normal Rooster, especially with hills and bumps like that.  You'll notice that you get to a point where it stays on all the time.  I think that means you have about 3/4 of a gallon left.

After running out of gas once on a trip and getting stuck on the side of the road for an hour at the end of an already very long day I don't wait for it to go solid before filling up any more.

Scott
Title: Re: Low Fuel Light Remains On
Post by: olhogrider on August 12, 2011, 04:11:27 pm
Mine starts to blink when I hit the brakes at about half a tank. One time I waited until the light came on steady. I am guessing I had about 1/2 gallon left. Fuel injected vehicles risk burning up the fuel pump if they run dry. I have been told that's why we have idiot lights instead of the "run 'till it quits then switch" petcock of the carb bikes.
Title: Re: Low Fuel Light Remains On
Post by: barenekd on August 12, 2011, 04:43:24 pm
Quote
I've noticed that around 150 miles from the last fillup the low fuel warning light blinks when I am braking because the fuel sloshes forward in the tank.

You must be filling up with the bike on the side stand. Beware that filling on the side stand will cost you about .5 gallons of gas in your tank.
I went from 150 miles before the blinking to about 190 before the blinking started when I started fueling on the center stand.

Notice the photo above of the switch. With the short stroke of the float, it will blink all the way to the bottom of the fuel level with any uphills, downhills, bumps and anything else that can cause the fuel level to move. Do not wait for it to be on steady on before refueling. You may not get there.
Bare
Title: Re: Low Fuel Light Remains On
Post by: prof_stack on August 12, 2011, 05:41:17 pm
You must be filling up with the bike on the side stand. Beware that filling on the side stand will cost you about .5 gallons of gas in your tank.
I went from 150 miles before the blinking to about 190 before the blinking started when I started fueling on the center stand.

Notice the photo above of the switch. With the short stroke of the float, it will blink all the way to the bottom of the fuel level with any uphills, downhills, bumps and anything else that can cause the fuel level to move. Do not wait for it to be on steady on before refueling. You may not get there.
Bare

If you always fill the bike on the center stand, make sure you don't park the bike shortly thereafter on the side stand, or you will be cleaning and polishing the tank.  If I were doing a long day ride I would use the center stand before taking off on the ride. 

But usually it is wise to put fresh gas in the tank when convenient.
Title: Re: Low Fuel Light Remains On
Post by: Sub on August 12, 2011, 07:13:20 pm
[I havent read the entire post, so sorry if this is a repeat]
Apparently there was a manufacturing issue or something with the sensors. Mine light is constantly on too. I'm waiting for a replacement. I heard there was a small wire or something that gets "eaten" by ethanol and this was what was causing the failures.
Title: Re: Low Fuel Light Remains On
Post by: barenekd on August 12, 2011, 07:21:06 pm
If it's on all the time there is a definite problem. The float is pretty loose on the post that it rides on so it shouldn't stick. There is something shorting out.
Bare
Title: Re: Low Fuel Light Remains On
Post by: Alaska Mike on August 12, 2011, 08:29:48 pm
 I had the same issue with my fuel light in May when I got my C5. Later when I was lifting up the gas tank to stuff some foam between that and the frame to mitigate a vibration, I accidentally ripped a blue wire out of the fuel sensor on the bottom right of the tank. PROBLEM SOLVED!!! I no longer have the pesky fuel light flashing intermittently and I know that I NEED to fill up every 200 miles. It usually takes aboout 3 gallons and I figure I am getting 65 - 67 gallons per mile. This is also mostly highway speeds of 70 mph.

 Too bad McDonalds has the rights to the phrase, because in terms of my RE,
"I'm lovin' it."
Title: Re: Low Fuel Light Remains On
Post by: Arizoni on August 12, 2011, 11:33:57 pm
Quote
I've noticed that around 150 miles from the last fillup the low fuel warning light blinks when I am braking because the fuel sloshes forward in the tank.

Quote
You must be filling up with the bike on the side stand.

Nope.
I always have the bike on the centerstand when I fuel it up.
I think the difference is that my bike has the California emmissions crap on it.
This includes the gas tanks filler which is like the filler necks in your newer family cars.

Not only does my cap unscrew and do the "clicking thing" when I tighten it but inside there is a metal tube with a hole in the bottom that is just large enough to allow a unleaded gas nozzle to go thru.

This filler neck extends down into the tank about 1-1 1/2 inches and I can only fill the tank until the fuel level reaches the bottom of it.  That, in effect leaves that much of the tank unfilled.

To me, this isn't a big thing and it won't be a big thing when I'm taking long trips because after traveling over 140 miles my butt needs a rest anyway so I'll be looking for a gas station.  ;D

Cheers!
Title: Re: Low Fuel Light Remains On
Post by: bentlr on August 14, 2013, 01:51:54 pm
These things don't float in gasoline with ethanol in it.  Take unit out and see if it floats in some gasoline.  Major issue because new ones will have the same problem.  Might try modifying the floaty with something that will work in gasoline. Perhaps some cork.
Title: Re: Low Fuel Light Remains On
Post by: Royalista on August 14, 2013, 09:49:39 pm
Those specifications are a tat optimistic.
Euro test says 79 mpg (uk), 66 mpg (us), 28 kpl (metric).
This is also realistic, though frugal riders may get better results.


As far as the low fuel sensor is concerned. I'm on my third, all replaced under warranty. If this one goes out I'm not going to replace it. Not worth throwing money at this gizmo. Old style is good enough.
Don't even need a pencil, 300 kilometers is not that far to remember.  :D
Title: Re: Low Fuel Light Remains On
Post by: Ducati Scotty on August 14, 2013, 10:54:38 pm
+1.  I had one go bad and replaced it under warranty.  If another goes bad I wouldn't fix it.  I'll probably just get a grease pencil and start writing the mileage on the bar clamp. 

Scott
Title: Re: Low Fuel Light Remains On
Post by: clubman on August 15, 2013, 08:54:28 pm
A well known problem according to my dealer. Can't remember the whole explanation but something to do with the sensor picking up the magnetic field of the steel tank and staying on.
Title: Re: Low Fuel Light Remains On
Post by: Royalista on August 15, 2013, 09:04:43 pm
A well known problem according to my dealer. Can't remember the whole explanation but something to do with the sensor picking up the magnetic field of the steel tank and staying on.

Aha. One never sees anything wrong at the device either.
Could that mean there is also an easy cure to the issue? And refit the device?
Title: Re: Low Fuel Light Remains On
Post by: no bs on August 15, 2013, 09:48:45 pm
Fuel Light On

1) Put fuel in tank.
    a) light goes out.....ride.
2) Fuel light still on after a healthy fueling.
     b) Cover fuel light with black tape......ride.
or unplug the connector, no unsightly tape.
Title: Re: Low Fuel Light Remains On
Post by: Ducati Scotty on August 15, 2013, 10:15:03 pm
A well known problem according to my dealer. Can't remember the whole explanation but something to do with the sensor picking up the magnetic field of the steel tank and staying on.

I believe the early sensors would magnetize the tank over time and cease to work properly.  The later ones don't have this issue.  Some people report the float on the sensor dissolving into goo.  On mine, everything was fine but the float just stopped floating for some reason so it didn't work any more.

Scott
Title: Re: Low Fuel Light Remains On
Post by: meilaushi on August 22, 2013, 03:26:38 pm
My low fuel light began doing the same thing.  Went to get the bike state inspected and the low fuel light came on upon turning the key on.  Figured fuel must be low, so stopped at gas station and filled up.  Light stayed on.  Shook the bike so as to slosh the fuel in the tank... still stayed on.  It's on after 3 days, every time I turn on the ignition.  Some years back I had a BMW K1300GT and the damn 10% ethanol in the gas appears to have been eating the sensor!  I replaced 4 of the things over a period of a year and a half.  Does anyone know what's with the RE UCE's low fuel sensor?  Is it a float type that's getting stuck or one of those things like BMW put in their bikes?  And what's the fix?  Just replacing the sensor?   
Title: Re: Low Fuel Light Remains On
Post by: D the D on August 22, 2013, 03:46:46 pm
Having an old Iron Barrel, I have two low fuel sensors: The time honored Slosh & Peak and the built in Cough, Cough, flip to Reserve.    ;)
Title: Re: Low Fuel Light Remains On
Post by: barenekd on August 22, 2013, 06:04:20 pm
Unfortunately not an option with the UCEs. Writing your fillup mileage with a Black erasable marker pen on the chrome piece that holds the handlebars on is a pretty good option though.
Bare
Title: Re: Low Fuel Light Remains On
Post by: Ducati Scotty on August 22, 2013, 06:13:00 pm
Pretty much the only thing I don't like about EFI bikes it not having a reserve.  I miss that.

Scott
Title: Re: Low Fuel Light Remains On
Post by: Royalista on August 22, 2013, 08:39:38 pm
Is it a float type that's getting stuck or one of those things like BMW put in their bikes?  And what's the fix?  Just replacing the sensor?

It is a float type but that remains functional. There is no visible defect.
And so far the fix is just replacing the sensor.
There is a rumor that the new sensors would be way better, even resistant? There is one of these now in my Electra but not long enough to make an assessment.

Slosh & Peak still works.
And I would happily trade in the sensor for a bit of reserve. After freaking out in the land of nowhere yesterday. Thinking of carrying an extra bottle, a liter would do.
Title: Re: Low Fuel Light Remains On
Post by: meilaushi on August 22, 2013, 10:15:06 pm
Having an old Iron Barrel, I have two low fuel sensors: The time honored Slosh & Peak and the built in Cough, Cough, flip to Reserve.    ;)
I sure wish that were the case with the new UCEs, but 'Tain't as the man sez.  My solution so far is to write down the mileage at fillup on a card in the tank bag map pouch where I can see it, add 150 miles to that, and fill the tank when the ODO hits that number.  A pain in the 'ask' IMHO when the *&^(%%$ sensor in a new bike should work!!!
Title: Re: Low Fuel Light Remains On
Post by: Arizoni on August 22, 2013, 10:41:16 pm
As many know, the float on my 2011 G5 turned into a gelatinous mass.  I assume it was due to the 10% ethanol in the fuel.
I didn't bother to have the unit replaced.  Instead I use a fine point Sharpie to write the mileage on the handlebar.  Adding 150 miles to the reading gives me the next fill-up which averages about 2 US gallons.

So far it's worked for me.  Even when I'm traveling the next town with a fuel pump is usually within 100 miles of the last one here in Arizona. :)
Title: Re: Low Fuel Light Remains On
Post by: meilaushi on August 24, 2013, 02:15:25 pm
That works too, but it bugs me that a relatively new bike should have such an important piece of equipment fail. >:(
Title: Re: Low Fuel Light Remains On
Post by: ROVERMAN on August 24, 2013, 04:20:14 pm
Surely it wouldn't kill them to add a trip odometer to the new bikes? When i get my B5 i will have to add a cycle meter. Really?
Title: Re: Low Fuel Light Remains On
Post by: High On Octane on August 24, 2013, 04:39:26 pm
Who needs a fuel light when you can do this mod?   ???  I'm thinking of doing this to the Blackhawk.

(http://i6.photobucket.com/albums/y217/lethalinj/sight_glass_zpsa53392d5.jpg) (http://s6.photobucket.com/user/lethalinj/media/sight_glass_zpsa53392d5.jpg.html)

Scottie
Title: Re: Low Fuel Light Remains On
Post by: Royalista on August 24, 2013, 09:17:34 pm
See, no electronics no fail.   8)

This may not necessarily be best looking on a bullet but a spy glass like for the oil should be doable, no?
Title: Re: Low Fuel Light Remains On
Post by: Ducati Scotty on August 25, 2013, 08:31:36 pm
I think to make Scottie's suggestion work you just need to curve the hose to follow the line of the pinstripes on the front of the tank.  I like the idea except for having an exposed plastic tube along the outside of the tank.  That doesn't seem like something that would fare well in an accident.

Scott
Title: Re: Low Fuel Light Remains On
Post by: High On Octane on August 25, 2013, 08:39:48 pm
The see thru fuel gauges are really popular on the choppers and bobbers around here.  I always thought it was cool and a fool-proof way to know EXACTLY how much fuel you have.  If I do it, I'd go as far as filling the tank 1 gal at a time and marking the sight glass to show exactly how many gallons you are at.

Scottie
Title: Re: Low Fuel Light Remains On
Post by: Gypsyjon on August 25, 2013, 09:04:22 pm
I think to make Scottie's suggestion work you just need to curve the hose to follow the line of the pinstripes on the front of the tank.  I like the idea except for having an exposed plastic tube along the outside of the tank.  That doesn't seem like something that would fare well in an accident.

Scott

I think it would fire great in an accident....Oops, you said
fare...Sorry ;-)
Title: Re: Low Fuel Light Remains On
Post by: Royalista on August 25, 2013, 10:15:57 pm
So, just slosh'n peak and a hipflask for emergencies?  ;D
Title: Re: Low Fuel Light Remains On
Post by: Arizoni on August 25, 2013, 11:18:55 pm
Different strokes for different folks as they say Scottie, but IMO that bit of plumbing hanging onto the side of a classic fuel tank looks like crap!  :(

It would look just right on the boiler of a Baldwin 4-6-2 but they already have several of them.  ;)
Title: Re: Low Fuel Light Remains On
Post by: D the D on August 26, 2013, 03:57:15 am
Sight Tubes may be ugly to some, looks kind of steam punk to me, and is very popular with the HD chopper crowd.
This, however, is a apparently a one off custom
Title: Re: Low Fuel Light Remains On
Post by: High On Octane on August 26, 2013, 04:30:36 am
I actually saw Bike Bandit advertising that gas tank.  Not sure if they're actually selling it or not.   ???  Seems sketchy to me.  I feel like that tank would just crumple is impacted.

Scottie
Title: Re: Low Fuel Light Remains On
Post by: D the D on August 26, 2013, 05:34:16 am
It's supposedly a one off, hand made, blown Pyrex glass by the bike's owner named Alan Lee.  That's all I know, just saved the pic 'cause I thought it was cool, but dangerous.
Title: Re: Low Fuel Light Remains On
Post by: Royalista on August 26, 2013, 09:26:11 pm
Great color scheme.
Could be Drambuie  ;)
Title: Re: Low Fuel Light Remains On
Post by: meilaushi on August 26, 2013, 10:35:13 pm
Who needs a fuel light when you can do this mod?   ???  I'm thinking of doing this to the Blackhawk.

(http://i6.photobucket.com/albums/y217/lethalinj/sight_glass_zpsa53392d5.jpg) (http://s6.photobucket.com/user/lethalinj/media/sight_glass_zpsa53392d5.jpg.html)

Scottie
That sight glass is a neat approach given that the old reserve petcock isn't applicable any more.  Another method would just be a float in the tank with an indicator.  Like they say, "The simplest methods to do something are always the best!"  :)
Title: Re: Low Fuel Light Remains On
Post by: Ducati Scotty on August 26, 2013, 11:04:20 pm
Or carry an 8" long dowel with a few notches in it.  Pop the cap and just dip in to see where things stand.  You could even epoxy a few neo magnets to it and just stick it to the frame or the bottom of the tank when you're not using it.

Scott
Title: Re: Low Fuel Light Remains On
Post by: meilaushi on August 28, 2013, 04:47:30 pm
Or a sight glass like that of the oil check glass could be put on the side of the tank about where the level would be when one had a gallon left.  One could see at a glance then where one was and when to hit the gas station...  Of course, one would have to remember to look every once in a while to see if the gas was low--less directly informative than the engine coughing that occurs when one needs to flip a petcock to the reserve position.
Title: Re: Low Fuel Light Remains On
Post by: Arizoni on August 28, 2013, 11:16:40 pm
... Of course, one would have to remember to look every once in a while to see if the gas was low--less directly informative than the engine coughing that occurs when one needs to flip a petcock to the reserve position.
Less costly too.
The fuel is what  cools the fuel pump in fuel injected vehicles (including the RE).
If the tank runs dry the pump can overheat and fail. :(
Title: Re: Low Fuel Light Remains On
Post by: Ducati Scotty on August 29, 2013, 07:24:01 pm
The fuel is what  cools the fuel pump in fuel injected vehicles (including the RE).
If the tank runs dry the pump can overheat and fail. :(

I know this is true and part of the design, but is it really a problem in normal operation?  I haven't ever heard ot a fuel pump failing because it overheated.  The low fuel light coming on is usually the indication to fill up, so most riders get their bikes to this point regularly.

Scott
Title: Re: Low Fuel Light Remains On
Post by: Arizoni on August 29, 2013, 11:08:15 pm
Your right.  Normally it isn't a problem but if anyone was thinking of running the bike until it ran out of fuel I figured I'd remind them of one of the hazards (along with pushing a 400 pound motorcycle a few miles to the next gas station).
Title: Re: Low Fuel Light Remains On
Post by: Ducati Scotty on August 29, 2013, 11:21:18 pm
I don't do it regularly but I have run out of gas once, no damage done.

Scott
Title: Re: Low Fuel Light Remains On
Post by: meilaushi on August 30, 2013, 01:24:53 pm
Less costly too.
The fuel is what  cools the fuel pump in fuel injected vehicles (including the RE).
If the tank runs dry the pump can overheat and fail. :(
I'd think that when the tank runs dry the engine would quit and the rider would turn off the bike, which should cut off the fuel pump and thus forestall overheating the thing.  Curious too that a pump that would overheat would be put in a fuel tank to begin with...but what do I know about bike engineering?  After all, BMW engineers put the places where you have to go to replace a burned out headlight bulb where no one aside from a small squirrel could reach the things...
Title: Re: Low Fuel Light Remains On
Post by: D the D on August 30, 2013, 02:44:24 pm
Fuel pumps in the tank are the standard world wide for fuel injected vehicles because a) electric pumps push well but suck at sucking fuel out of a tank, and b) the fuel itself cools the pump.
Before a tank runs completely dry, i.e. as soon as the motor is no longer immersed in fuel, the motor begins to heat because the fuel is no longer in contact cooling it.  The motor will overheat and fail long before it's hot enough to ignite gasoline.  Sparks in the fumes is a bigger worry, and that's not bloody likely with a brushless, spark free, motor.
Title: Re: Low Fuel Light Remains On
Post by: High On Octane on August 30, 2013, 02:50:06 pm
The main reason why electric fuel pumps fail is because the vehicle has been run out of fuel.  Most people don't realize or take into consideration that fuel pumps are a wet pump, they are designed to be continuously submerged in fuel.  The petroleum in the fuel lubricates the pump as it is running, when you run the tank out of fuel, there is no load on the pump, so it spins more freely, but there is no more fuel to lubricate the pump and the pump seizes.  Same concept if you run your engine out of oil but keep running the engine.  It might run for a few minutes, but sooner than later it will seize up.

NEVER RUN AN ELECTRIC FUEL PUMP EMPTY!!!

Scottie
Title: Re: Low Fuel Light Remains On
Post by: D the D on August 30, 2013, 03:00:23 pm
The main reason why electric fuel pumps fail is because the vehicle has been run out of fuel.  Most people don't realize or take into consideration that fuel pumps are a wet pump, they are designed to be continuously submerged in fuel.  The petroleum in the fuel lubricates the pump as it is running, when you run the tank out of fuel, there is no load on the pump, so it spins more freely, but there is no more fuel to lubricate the pump and the pump seizes.  Same concept if you run your engine out of oil but keep running the engine.  It might run for a few minutes, but sooner than later it will seize up.

NEVER RUN AN ELECTRIC FUEL PUMP EMPTY!!!

Scottie

Yeah, I have a neighbor who gets a new fuel pump in his pickup every year because he never has more than 1/4 tank and fills only when he's on fumes.  Then he still never buys more than 1/4 tank.  Somehow he thinks he's saving money because he never sees more than $15 go out of his pocket at the gas station, but he's doing it every day.  And his pump fails every year.
Title: Re: Low Fuel Light Remains On
Post by: Arizoni on August 31, 2013, 12:24:41 am
You gotta love people like that.
They are living proof your smarter.  ;D
Title: Re: Low Fuel Light Remains On
Post by: mattsz on September 27, 2013, 01:38:20 am
For y'all's information:

Two days ago, no fuel light on.  Today, on all the time.  Stopped at the gas station, opened tank, found it about 1/2 full.  Topped up, fuel light still on.  Oh well.  It's the original one that came on my 2011; the replacement (which I didn't install) that came with my new tank looks just like the original one.  I think I'll write the miles for the rest of this riding season...
Title: Re: Low Fuel Light Remains On
Post by: wildbill on September 27, 2013, 02:45:00 am
might look the same but will work.my b5 had a faulty sender within the first 200 miles......did the same as yours.
fitted a new one myself -pretty easy - drama gone and working fine
just do it!  ;)
Title: Re: Low Fuel Light Remains On
Post by: Ducati Scotty on September 27, 2013, 03:26:00 am
Matt, it's really a mojo light.  Your mojo is always on :)
Title: Re: Low Fuel Light Remains On
Post by: Royalista on September 27, 2013, 10:08:02 pm
+1 ;D
Title: Re: Low Fuel Light Remains On
Post by: tooseevee on September 27, 2013, 11:20:07 pm
You gotta love people like that.
They are living proof your smarter.  ;D

             No, they're living proof that you're smarter  :)
Title: Re: Low Fuel Light Remains On
Post by: mattsz on September 29, 2013, 10:07:26 am
Now it's off again.  :o

Checked connections and wires for issues, found none.  Won't know if it's working again, or failed, until I run low on gas again!  Unless, of course, it lights up again before I run low...

My Sharpie works very well...  ;)
Title: Re: Low Fuel Light Remains On
Post by: heloego on October 25, 2013, 04:05:42 am
Let us know if the Sharpie holds up or quits. Then post pics.  ;)
Title: Re: Low Fuel Light Remains On
Post by: Ducati Scotty on October 25, 2013, 04:13:22 am
Burned out bulb? :P