Hello dear all !
I'm Alexis RICHARD, a French member of this Forum.
I have a wonderfull 750 GSXR made in 1988 !
I replaced all spark plugs, filter, oil, carburetor synchronization, valves gap last year (1500 km); and it worked very well after !
But last week-end, I did a race with an other motorbike, but not faster than 150 km/h and when I decided to ride at the normal speed my motorbike had a problem.
Idling the engine it's ok, but when I turn the accelerator handle a little bit more: my motorbike accelerates jerkily, but if i turn just a little bit the accelerator handle the acceleration is good , and a little bit more it's not ok. I tried to put the starter mode and the engine stopped directly.
So I thinked to a gasoline issue (carburation) but i'm not sure.
And I want to reiterate that the problem happened at once and just after this little run.
I always drove regularly my motorbike but not during this 3 last months because I was in an internship in Thailand ^^
So I would like to have your advices, if a member of this forum knows the problem or have potential root causes ^^
Thank you very much !!