Author Topic: Rev limit in 1st gear  (Read 15326 times)

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Haggisman

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Reply #30 on: June 30, 2020, 01:54:58 am
I have encountered such mechanically unsympathetic people before, they are usually the ones with broken gearboxes,  melted pistons, snapped chains and no idea why.
It is the type of person that puts dealers off offering test rides on their bikes and makes warranty claims have to be investigated so much.
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dcolak

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Reply #31 on: June 30, 2020, 02:37:01 am
For me the issue is not about running up to the rev limiter....

the issue is running up to the rev limiter on a new bike with only a hundred or so miles on it....

Cookie

Really? So, in spite, you do not want to help me?  Because you care about my bike?

Is this candid camera?
Triumph 800XC, Royal Enfield 650GT


dcolak

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Reply #32 on: June 30, 2020, 02:54:22 am
I have encountered such mechanically unsympathetic people before, they are usually the ones with broken gearboxes,  melted pistons, snapped chains and no idea why.
It is the type of person that puts dealers off offering test rides on their bikes and makes warranty claims have to be investigated so much.

I hope you are not talking about me, that would make no sense.

Did you notice the same problem with your GT 650?

Does it rev freely to 8000 RPM in the 1st gear or does it bog down at 7000 RPM before continuing to rise to 8000 RPM?

Thank  you.

P.S.
Found a nice review, mentiones the same thing I see with my GT 650:

"Throttle response is smooth and linear, torque pulling you urgently from 2,000 to 4,000 rpm. Beyond that the engine delivers a guttural, lusty rush of power all the way to the 7,000rpm redline (although I’ve hit the rev limiter at 8,000rpm)."

So, where is the rev limiter? On my bike, the red line starts at 8.000 RPM.

https://wheels.ph/love-and-the-royal-enfield-650-twins/



« Last Edit: June 30, 2020, 03:17:44 am by dcolak »
Triumph 800XC, Royal Enfield 650GT


twocoolgliders

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Reply #33 on: June 30, 2020, 03:25:40 am
Yes, I do not want to help you.

No, I don't care about your bike.

Yes, I do care about my bike and I operate it in that way.

Cookie


Really? So, in spite, you do not want to help me?  Because you care about my bike?

Is this candid camera?


BRG-BIRD

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Reply #34 on: June 30, 2020, 03:52:39 am
I spy with my little eye am internet troll


Bilgemaster

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Reply #35 on: June 30, 2020, 04:37:31 am
An "Internet Troll"? No, I suspect he's genuinely serious in wondering why there's some lag between 7,000 and 8,000 rpm in first gear and seeking independent confirmation. Though why exactly one might WANT to wail away like that in first at redline anywhere but at a drag strip pumping nitro, or expect others to blithely thrash their own motors just to satisfy his quite possibly ruinous curiosity, is a bit of a mystery to this old nurser-alonger of an Iron Barrel Bullet, as is his recurrent references to 'Candid Camera.' What's with the Allen Funt fixation? Is it the hair? That still-boyish grin after all these years? But what do I know? If I wound my old Bullet up anywhere near 8,000 rpm I'm fairly sure my piston would wind up in the hedges. Still, you've got six gears on those nice new twins. I'd say use 'em.


"Hi gang! This is Allen Funt from Candid Camera here to tell you that if you keep redlining in first gear your bike will soon be as dead as this busted TV."
« Last Edit: June 30, 2020, 04:49:24 am by Bilgemaster »
So badass my Enfield's actually illegal  in India. Yet it squeaks by here in Virginia.

 


gizzo

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Reply #36 on: June 30, 2020, 04:45:32 am
Yes, I do not want to help you.

No, I don't care about your bike.

Yes, I do care about my bike and I operate it in that way.

Cookie

Perfect.
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Gremlinsteve

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Reply #37 on: June 30, 2020, 06:52:37 am
I suspect that what you are encountering is a lg in how fast your tach moves versus how fast the motor revs

Your seeing 7k but you’re actually already at 8k

You can and will hurt the motor. Just because you have a reve limiter doesn’t mean the engine won’t rev past that point mechanically

Good luck in your search


greentrumpet

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Reply #38 on: June 30, 2020, 09:16:54 am
DFTT


Cat3625

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Reply #39 on: June 30, 2020, 09:39:41 am
An E.C.U. Can be programmed by the manufacturer to have a soft cut (7000rpm) and harsh cut (8000 rpm)
Why any one would want rev the tits of a bike in 1st gear to 8000 rpm is beyond my comprehension especially when the maximum torque is at 5250 rpm,the point at which  to change gear,is at a much lower figure on these engines.https://bikereview.com.au/wp-content/uploads/2019/06/Royal-Enfield-Interceptor-650-First-Service-Sydney-Dyno-Run.jpg
Leads me to believe the Poster is Mechanically unsympathetic to his equipment.
« Last Edit: June 30, 2020, 10:36:18 am by Cat3625 »
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BRG-BIRD

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Reply #40 on: June 30, 2020, 12:51:59 pm
An "Internet Troll"? No, I suspect he's genuinely serious in wondering why there's some lag between 7,000 and 8,000 rpm in first gear and seeking independent confirmation. Though why exactly one might WANT to wail away like that in first at redline anywhere but at a drag strip pumping nitro, or expect others to blithely thrash their own motors just to satisfy his quite possibly ruinous curiosity, is a bit of a mystery to this old nurser-alonger of an Iron Barrel Bullet, as is his recurrent references to 'Candid Camera.' What's with the Allen Funt fixation? Is it the hair? That still-boyish grin after all these years? But what do I know? If I wound my old Bullet up anywhere near 8,000 rpm I'm fairly sure my piston would wind up in the hedges. Still, you've got six gears on those nice new twins. I'd say use 'em.


"Hi gang! This is Allen Funt from Candid Camera here to tell you that if you keep redlining in first gear your bike will soon be as dead as this busted TV."

I can agree with all this.


dcolak

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Reply #41 on: June 30, 2020, 01:59:05 pm
An E.C.U. Can be programmed by the manufacturer to have a soft cut (7000rpm) and harsh cut (8000 rpm)
Why any one would want rev the tits of a bike in 1st gear to 8000 rpm is beyond my comprehension especially when the maximum torque is at 5250 rpm,the point at which  to change gear,is at a much lower figure on these engines.https://bikereview.com.au/wp-content/uploads/2019/06/Royal-Enfield-Interceptor-650-First-Service-Sydney-Dyno-Run.jpg
Leads me to believe the Poster is Mechanically unsympathetic to his equipment.

It's interesting, I never heard of the "soft cut" rev limiter. What is it? How does it work?

It would not be at 7000 rpm as the max HP is at 7250 rpm and the red starts after 7500 rpm

I've never heard of a motorcycle that has a rev-limiter at max HP, it would make no sense.

And why only in 1st gear and not in the rest of the gears?

Does your bike behave the same in the first gear?

Triumph 800XC, Royal Enfield 650GT


a10ken

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Reply #42 on: June 30, 2020, 03:08:19 pm
by revving the tits of a brand new motor and not adhering to the running in procedure (which is there for a reason!!) you have probably voided your warranty!!
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olhogrider

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Reply #43 on: June 30, 2020, 06:08:41 pm
The question has been asked and not answered. Why would anyone bounce their brand new engine off the redline before it is broken in? Then asking others to do it. This is why people suspect a troll. These are not race bikes or even sport bikes. They are nostalgia pieces for old guys like me and great all around middleweight fun bikes for people on a budget.

So the question remains, why would anyone do this and why would they ask anyone else to? Just because you can, doesn't mean you should.


Cat3625

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Reply #44 on: June 30, 2020, 06:22:42 pm
Where in my reply does it say about a rev limiter at  max hp?
As for information on Soft & Hard ecu cuts I suggest you do a bit or research on the Internet.
Perhaps you can enlighten us to your location in the world.
1966 Continental 250 GT
2001 Bullet 500 k/s
2002 Bullet 350 Trials
2008 Bullet 500 Classic electric start
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