Author Topic: Engine losing power during fast acceleration  (Read 8102 times)

0 Members and 1 Guest are viewing this topic.

SquadronROE

  • Scooter
  • **
  • Posts: 10
  • Karma: 0
on: February 18, 2019, 05:47:26 pm
Hey folks!

I bought a 2018 RE Classic Chrome a few weeks ago and decided to take it out for a quick ride yesterday despite it being very cold (like 40?) for riding.

So I let the bike warm up on the center stand for something like 5-10 minutes as I got ready, and rolled out easy onto the road. But when I turned on to the local highway (not interstate, like a 55-65mph highway) and tried to get up to speed the engine, uh, resisted the notion.

Basically it felt like if I rolled on the throttle too hard the engine would sputter and threaten to die. I'm not sure if this is expected behavior (All my previous bikes have been sporty so I might be riding wrong) or if I should consider further troubleshooting to sort out a problem.

After I was riding for a few minutes I noticed that if I slowly roll up the throttle (very slowly) it doesn't seem to hit the same problem. But if I roll too hard, it consistently happens.

Any thoughts? Do I need to just adjust my riding habits?


Beardo

  • Bulleteer
  • ***
  • Posts: 120
  • Karma: 0
Reply #1 on: February 18, 2019, 10:23:45 pm
Same thing here when I delivered my 2013 Bullet to my cousin. The condition presented itself as if momentarily running out of fuel.

The bike didn't do this last month when the was an oddly warm day. I filled the tank, it then pretty much sat until Thursday.

My theory? Water in the tank. The bike was out in a shed, with plenty of holes, plenty of draft and weather to intrude. The temps going wildly up and down. That's where I'm at.

It's been a strange winter....
2000 Bullet 500


Stanley

  • Grease Monkey
  • ****
  • Posts: 400
  • Karma: 0
Reply #2 on: February 18, 2019, 11:02:03 pm
Water, clogged cap vent, poor fuel flow from pump or injector but on new bike I bet it's water.
Lurker on a Vespa


SquadronROE

  • Scooter
  • **
  • Posts: 10
  • Karma: 0
Reply #3 on: February 18, 2019, 11:28:40 pm
Interesting. I've got a bottle of sta-bil that supposedly might help with that. But it definitely felt as if the thing were running out of fuel.

I haven't had it for too long but it definitely sat at the dealer for a few minutes/months. I think sta-bil helps reduce the water presence, so I can give that a shot.


Beardo

  • Bulleteer
  • ***
  • Posts: 120
  • Karma: 0
Reply #4 on: February 18, 2019, 11:38:29 pm
Personally, I'm just going to be draining the tank on the '13. Gas is cheap, and not worth the aggravation.

And if that isn't it, I'll know almost immediately.
2000 Bullet 500


SquadronROE

  • Scooter
  • **
  • Posts: 10
  • Karma: 0
Reply #5 on: February 19, 2019, 12:10:10 am
Personally, I'm just going to be draining the tank on the '13. Gas is cheap, and not worth the aggravation.

And if that isn't it, I'll know almost immediately.

But that precious dinosaur juice!   :D

Yeah that might be easier. Or I'll just ride it until it actually runs out of gas then refill it with some of the ultra-grade no-ethanol stuff.


Beardo

  • Bulleteer
  • ***
  • Posts: 120
  • Karma: 0
Reply #6 on: February 19, 2019, 12:45:51 am
Or repurpose that old gas, and be done with it all...
2000 Bullet 500


GlennF

  • Grand Gearhead
  • *****
  • Posts: 2,691
  • Karma: 0
Reply #7 on: February 19, 2019, 01:41:43 am
The issue with alcohol fuels in rarely used recreational vehicles is they separate into 3 layers eventually .. gas, alcohol and water.  The stabilising addons do not stop the water getting in they stop it seperating out as much when the vehicle sits too long.


mattsz

  • Grand Gearhead
  • *****
  • Posts: 5,525
  • Karma: 0
  • moto-gurdyist
Reply #8 on: February 19, 2019, 11:33:02 am
Or I'll just ride it until it actually runs out of gas...

This is not generally recommended for the health and longevity of your fuel pump...


9fingers

  • Grand Gearhead
  • *****
  • Posts: 934
  • Karma: 0
  • From the New Hampshire part of New Jersey
Reply #9 on: February 19, 2019, 11:59:57 am
This doesn't sound like your problem but what the heck. When I got mine I was perplexed as to why it would sputter on acceleration out of corners. Turns out I was used to cars and bikes with much higher redlines and this one has an automatic fuel cut off when you reach the rev limiter. I was over revving it which activated the limiter and causing it to sputter. My first road bike and I, like you, picked an odd one. And I wouldn't have it any other way. Watch the revs as it is running in and change the oil more often than the manual says, maybe at 300 and 1,000 and 2,000 miles. The engine gets much smoother as the miles build. Good luck with yours.
9fingers
Currently own:

2016 Classic Chrome Maroon
2020 Moto Guzzi V7III Special
V Strom 650 ABS Adventure
Beta Rev 3 270
Honda TLR200 custom
Honda TL 250 TMI custom frame
Honda TL 125
Yamaha TY350


gashousegorilla

  • Grand Gearhead
  • *****
  • Posts: 4,485
  • Karma: 0
Reply #10 on: February 20, 2019, 01:53:03 am
  It certainly sounds like it could be the "issue"  to me 9fingers.  Especially if it is only happening to him in  first, second and thirds gears.... bouncing off the rev limiter.  ;)
An thaibhsí atá rattling ag an doras agus tá sé an diabhal sa chathaoir.


johno

  • Grand Gearhead
  • *****
  • Posts: 541
  • Karma: 0
  • 2012 B5 on the original Portland Dorset UK
Reply #11 on: February 22, 2019, 02:28:23 pm
Or the good old fashioned side-stand switch cutting the engine with vibration.
either tighten up the stand, or better still, just disconnect the switch.
2012 B5 Bullet
 K&N, sport muffler, 18tooth fr sprocket, Avon style fairing, 1958 pattern British army haversacks. Mitas tyres DiD chain. Carberry plate.


mike_bike_kite

  • Bulleteer
  • ***
  • Posts: 129
  • Karma: 0
Reply #12 on: February 22, 2019, 06:02:34 pm
It's still in warranty so just ask the garage to fix it. It might be worth checking that the symptoms are the same each time.
2018 C5 Pegasus + NC750X + Vespa GT + Vespa GTS


Dalmatian man

  • Bulleteer
  • ***
  • Posts: 105
  • Karma: 0
Reply #13 on: February 22, 2019, 07:30:05 pm
Fast acceleration on a enfield forum?
33cc cyclemaster
James Cadet
James Comodore
Honda C50
Suzuki Gn250
BMW 650
Honda Hornet 600
BMW R1100RS
Royal Enfield C5 2014
BMW G310R


9fingers

  • Grand Gearhead
  • *****
  • Posts: 934
  • Karma: 0
  • From the New Hampshire part of New Jersey
Reply #14 on: February 22, 2019, 07:43:10 pm
Fast acceleration on a enfield forum?

It's fast...........fast enough at least. OK, fast enough for me.
9fingers
Currently own:

2016 Classic Chrome Maroon
2020 Moto Guzzi V7III Special
V Strom 650 ABS Adventure
Beta Rev 3 270
Honda TLR200 custom
Honda TL 250 TMI custom frame
Honda TL 125
Yamaha TY350