2 replies to this topic

[bugmenot]

Hi,
I purchased 1996 Seadoo Speedster and the left engine is vibrating/shaking raly bad when idling on trailer I cen't point what is the problem.
I replaced spark plugs and geped them to "022 , New Batterys. New Fuel ,
Did compresion test on both engines left is 135, 140, Right engine 150,150,
Checked motor mouths and look prety good no movment when preshore aplaid.
I dont want to put boat in wather till I get it fixed Im scared engine will brake bolts and destroy the boat.
Both engines start up as soon as i hit the switch no long cranking.
Guys please help any suggestion is helpful.
thanks,,,

[bugmenot]

I was massing with the engine again, removed spark plugs and inserted scredriver in to se if there ware any holes in pistons I figured that both pistons are at the top realy wierd I know one piston should be up to tdc and one down bdc.
I kow this sound crazy but what could be problem here is there way to adjust so one piston is up and one down.

[Bob86ZZ4]

Puzzling, if you're darn sure that both pistons are up top then there is major trouble. Depends how much you want to get into it. I'd take it to a good repair place, but I'm not very good with a wrench. Good luck. Keep us posted what you find.