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Why does my drag bike sputter on the top end?
Posted: Wed Jul 11, 2012 11:16 pm
by Trafficjamz
Runs great for about half the race then stutters and makes less power.
I suspect it is lean from running the bowl out of fuel.
What do you guys think?
Re: Why does my drag bike sputter on the top end?
Posted: Wed Jul 11, 2012 11:26 pm
by Bear45-70
Sounds like a fuel starvation problem, AKA the float bowl is not staying full.
Re: Why does my drag bike sputter on the top end?
Posted: Wed Jul 11, 2012 11:31 pm
by Trafficjamz
do you think a fuel pump would help?
Re: Why does my drag bike sputter on the top end?
Posted: Wed Jul 11, 2012 11:56 pm
by Bear45-70
Trafficjamz wrote:do you think a fuel pump would help?
Either that or upgrade the petcock to the Aero 125 size or use a manual petcook.
Re: Why does my drag bike sputter on the top end?
Posted: Sun Jul 15, 2012 7:59 pm
by kryptonite
Hey thats me in the video
thats the run my coil wire cam off
that was a teaser run, i mean the numbers now line up that would have been my first 9sec pass
buh bye, K
Re: Why does my drag bike sputter on the top end?
Posted: Sun Jul 15, 2012 9:49 pm
by bakaracer
Trafficjamz wrote:Runs great for about half the race then stutters and makes less power.
I suspect it is lean from running the bowl out of fuel.
What do you guys think?
so you didnt take me recommendation i gave to spreemadness when I told him to run a fuel pump on his setup when he was having issues with his 130cc setup after he built it? I noted saying to run a fuel pump for strokers as it runs low on fuel when holding it wot for over 5sec.
Re: Why does my drag bike sputter on the top end?
Posted: Mon Jul 16, 2012 10:47 pm
by SpreeMadness520
My problem was a bent flywheel key
Tjamz bike is crazy as * until top end. I have no idea what it is