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2002 Yamaha 2-stroke motor - clunks out when placed in gear

Adrastea

New member
Hey guys. If this is the wrong sub for this please let me know. Thanks ahead of time!

A repair center has tried to fix this problem for 4 weeks and failed 3 times. The motor misses and bogs down at full throttle, and sometimes drops a cylinder. The service center ruled out fuel problems and cleaned the carbs. The electrical parts seem to test OK and they did change the ignition coil which didn't work. On the last run the engine got worse and now clunks out when placed in gear. Any ideas?
 
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