Power loss when overtaking? - SV650.org

17-09-11, 04:58 PM

Hey people!

I own a v reg 650s. On my way back from the pub last night (on the cokes of course) I was following my mate. We came round a slight left bend and I was keeping my revs up ready to overtake him but when I opened up the tap I had a sudden loss of power, so I closed, re opened and it was fine

. It hasn't done it again since but was just a little bit worried. Any ideas on what this could of been? Thank you!

17-09-11, 10:33 PM

carbed or injection buddy? i dont know regs by year!

18-09-11, 07:31 AM

Also is your bike on a restricted?

andrewsmith · 18-09-11, 07:53 AM

Two Wheels its a curvy

Was it on the front or rear cylinder?
Was it wet?

18-09-11, 08:11 AM

It is carbed and only just done a service, there is no knocking or tapping noise either.
Also its not restricted and it was not on a wet day.

andrewsmith · 18-09-11, 07:27 PM

I'd check the air filter incase something is blocking it.

yorkie_chris · 18-09-11, 07:28 PM

Yes check the foam under the tank, it can sometimes come loose and intermittently block the filter.

Also it's starting to cool down a bit now, if damp or foggy carb icing would not be out of the question.

18-09-11, 08:18 PM

Thanks guys i will check that out as soon as i get back home tomorrow and let you know

johnnyrod · 19-09-11, 11:28 AM

The tank foam can look fine even if it's getting sucked into the intake, give it a bit of a tug to be sure. Drove me insane till I figured it out, it was even bogging down at around the same engine speed just to throw me off.

25-09-11, 09:32 AM

Hi everyone, ive checked my tank foam and that is all fine. It hasnt done it again since but if it does will investigate further. Thanks for all the help people.

17-09-11, 04:58 PM	#1
JoulesSV Guest Posts: n/a	Power loss when overtaking? Hey people! I own a v reg 650s. On my way back from the pub last night (on the cokes of course) I was following my mate. We came round a slight left bend and I was keeping my revs up ready to overtake him but when I opened up the tap I had a sudden loss of power, so I closed, re opened and it was fine . It hasn't done it again since but was just a little bit worried. Any ideas on what this could of been? Thank you!

17-09-11, 10:33 PM	#2
twowheels Guest Posts: n/a	Re: Power loss when overtaking? carbed or injection buddy? i dont know regs by year!

18-09-11, 07:31 AM	#3
Murph Guest Posts: n/a	Re: Power loss when overtaking? Also is your bike on a restricted?

18-09-11, 07:53 AM	#4
andrewsmith Member Mega Poster Join Date: Apr 2010 Location: Newcastle upon Tyne, Just south of salad dodging country Posts: 7,750	Re: Power loss when overtaking? Two Wheels its a curvy Was it on the front or rear cylinder? Was it wet? __________________ RIP Reeder 20/07/1988 - 21/03/2012. Always missed squire!!! Every year we meet old friends, gain some new ones, lose old ones and you always remember them all. “Live as if you were to die tomorrow. Learn as if you were to live forever.” Mahatma Gandhi

18-09-11, 08:11 AM	#5
JoulesSV Guest Posts: n/a	Re: Power loss when overtaking? It is carbed and only just done a service, there is no knocking or tapping noise either. Also its not restricted and it was not on a wet day. Last edited by JoulesSV; 18-09-11 at 08:14 AM.

18-09-11, 07:27 PM	#6
andrewsmith Member Mega Poster Join Date: Apr 2010 Location: Newcastle upon Tyne, Just south of salad dodging country Posts: 7,750	Re: Power loss when overtaking? I'd check the air filter incase something is blocking it. __________________ RIP Reeder 20/07/1988 - 21/03/2012. Always missed squire!!! Every year we meet old friends, gain some new ones, lose old ones and you always remember them all. “Live as if you were to die tomorrow. Learn as if you were to live forever.” Mahatma Gandhi

18-09-11, 07:28 PM	#7
yorkie_chris Noisy Git Mega Poster Join Date: Apr 2007 Location: Halifax/Leeds Posts: 26,645	Re: Power loss when overtaking? Yes check the foam under the tank, it can sometimes come loose and intermittently block the filter. Also it's starting to cool down a bit now, if damp or foggy carb icing would not be out of the question. __________________ Currently Ex Biker Now rebuilding a 63' fishing trawler as a dive boat

18-09-11, 08:18 PM	#8
JoulesSV Guest Posts: n/a	Re: Power loss when overtaking? Thanks guys i will check that out as soon as i get back home tomorrow and let you know

19-09-11, 11:28 AM	#9
johnnyrod Member Mega Poster Join Date: Jul 2003 Location: Doncaster, oop norf Posts: 2,128	Re: Power loss when overtaking? The tank foam can look fine even if it's getting sucked into the intake, give it a bit of a tug to be sure. Drove me insane till I figured it out, it was even bogging down at around the same engine speed just to throw me off.

25-09-11, 09:32 AM	#10
JoulesSV Guest Posts: n/a	Re: Power loss when overtaking? Hi everyone, ive checked my tank foam and that is all fine. It hasnt done it again since but if it does will investigate further. Thanks for all the help people.

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