tx-fisherdude

I just picked this up over the weekend. I dont know much about it but I got it for free with a title and a sportsman trailer so I cant complain. I primed it with some gas out of my boat (Mixed) and jumped it off and it started up pretty fast but it looks like the coupler is wobbling. I pulled the pump and the shaft look straight. I havent had the time to look into further it but have checked on line and havent found any thing on the subject. this is causing alot of noise and vibration but only when the pump is on. Any advise

785 lugs

what model ski is it ????

tx-fisherdude

1996 700 I got a bad feeling its got a bent crank but I know nothing about jet skis

tx-fisherdude

sorry I didnt put the size 700 2 cylinder

YamaDoo

Did you check the impeller to make sure it is not damaged?

tx-fisherdude

The impeller looks fine and the bearings feel fine. When you spin it over theres a 1/8" to 1/4" wobble of the coupler and from the looks of the pics I have found the crank is tappered so imo its either a bent crank or a loose coupler. The coupler appears to be tight.