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Yamaha 2a runs for about 10 sec

gordmac

New member
"Hi
new to this forum thing


"Hi
new to this forum thing so please bear with me!
I have a Yam 2a no 646 09644 which hasn't been used for some years. I soaked cylinder with wd40, stripped and leaned the carb, put fresh fuel in the tank. It starts with one or two pulls and runs for about 10 sec then stops. There is a drip of fuel from the tap but if the screw for draining the float chamber is unscrewed fuel runs out. Any ideas what may be wrong?
Other thing that seems strange is that the full throttle seems to be limited by the advance pulling the pluglead tight.
Any suggestions gratefully"
 
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