Well, I've drained the carbs with great success, took the old girl out for a test ride of about 20 miles and not a single hiccup. Result.Or so I thought. Today on my way to work the problem has returned. Several times the engine RPM would just drop down slowly, regardless of the throttle position. Strangely though if I pull the clutch in, let the engine stall and blip the start button again it will fire up again. I could always change the plugs but I'm thinking this is possibly water/particles getting into the carbs. Any thoughts?
And make sure you haven't got a kinked breather pipe under the fuel tank, starving the tank of air.
Well I just got home....it was going so well up until about 20 minutes into the ride. That's when the problem came back. Had to restart the engine 3 times in the space of 5 mins. Is there a chance the pipe could be blocked?
Ive done this yesterday and no change. I also noticed that blowing down the pipe that goes to the cap drain plug results in air coming out the other side. Can't say the same for the tank breather. Could it be possible that it is blocked inside the tank?
That is exactly what I tried. It seems it would take quite some pressure to force the air through.