I need some help with my either 94,95 kawasaki 750 jetski. It ran good all last year and this year when i took it out this year it rean good for awhile and then a loud vibration started happening and it started running bad but got better if i let off more and more on the throttle but it eventually got to the point if i would give it throttle it would make a loud noise and then the motor would stop. But it started up all the time just keeps doing the same thing loud clank clank clunk then dies.

PLEASE HELP!!
Thanks jason

 

Loud clunking noises are typically not good. Did you notice any noises when it idled? It could be internal, but I'm not up on my2 stroke knowledge. Maybe someone else has more insight, welcome to KF.

 

I had something similar happen to me about 10 years ago. The flywheel had a crack in it. Remove your gas tank, take off the front cover and inspect it. You then could try to start it and see if the fly wheel wobbles, if you don't see it wobble, take off the flywheel and look at where it touches the crank shaft, if it is cracked take it to a local JS shop and have them weld it