skatnbnc wrote on 07/08/09 at 13:01:41:...well not exactly the throttle I dont think? I did not know where to start looking for the issue yesterday and was going to write in about it today, but it seems to be solved (for now).
Yesterday the throttle was turned and held as usual, but there was no corresponding increase in power, not like usual anyway. I had no pick-up; not the usual leap forward.
Situation was first gear, throttling up for 2nd, but had very sluggish reponse. Same thing in second, very slow and never quite up to speed. I rarely go to third on my way to work. This happened all day yesterday during several rides.
It did not matter if I had the choke in or not - same response.
Today it started to do the same thing. Then, as I was holding the throttle at one postion, first gear, the bike lurched forward and gained speed. All torq back, now speeding up in normal quick response. The lurch was enough to snap my head back a little.
so...did i have something stuck in the fuel line? Or a bad tank of gas?
Is this going to happen again?
I am going to go against the grain of advice here.
But I suspect a clogged air filter, or a clogged gas tank vent (usually only with long fast rides it crops up, but depends on how bad a clog though) or a clogged carb float bowl vent.
It fixed itself. Makes it moe likely as the air filters cant do that. Its a gas tank or carb float bowl vent. Try pulling the hoses from the carbs that sorta point back toward your butt on the upper 1/2 of the carb. Brass colored tubes, possibly have a rubber hose on em. That is the atmospheric equaliser for the carbs. Easy to check, and if its clogged, easy to clean.
If you split your carb and got into trouble fitting it back together, send it to me, in bits and pieces too, and I'll send it back perfectly fitted back and running like a swiss watch if it is a carb issue of course.
Cool.
Srinath.