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Cold start ups

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Hi all.

When starting my 03 XR4 cold it starts and then goes on and splutters, gasps and eventually stops. It doesnt do it when its warm though. Could it be lean? i did the valves and it didnt help. Any ideas?? :cry:

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try adjusting your pilot jet, this screw is a fuel enrichning screw.from fully closed position, unscrew to 2 1/2 turns out to 2 3/4,

You should not have to change the pilot jet unless you've changed airfilter and or exhaust system.

If the bike does not idle correctly after this , maybe run carb cleaner and air through the passages and atomizing holes in the jets themselves.

these settings are for close to sea level, with stock jets, it will vary with elevation.

as a last resort, if your are still having trouble concider changing the pilot jet to the next size up.

stu

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