1988 Yamaha 90 HP Timing issues

BFraser85

Recruit
Joined
Aug 16, 2008
Messages
1
Hey all Ive got an issue with my 1988 Yamaha 90 HP Timing and am not sure how to go about the proper procedure of correcting and fixing the problem:

Now heres the issue: The motor starts right up but as soon as i give it some throttle it seems the engines cylinders aren't running in sync with each other and causes the engine to jerk. I have cleaned the carbs and did compression checks as well as testing the solenoids, all check out so it leaves me to believe the timing is off. Like i said it idles fine and i have ruled out electrical, compression, and carburetor issues. the only thing i can no think of is timing and correcting the timing but i don't know how to go about this feat. If anyone can help it would be appreciated. thank you in advance for all your posts.
 

Yamajoe

Petty Officer 1st Class
Joined
Oct 31, 2007
Messages
264
Re: 1988 Yamaha 90 HP Timing issues

you will need to get yourself a factory manual it will take you through the tune up procedures be worth every cent you pay too trust me.
 
Top