787 power

For the last year I've been rebuilding my dads 1996 Seadoo xp that sat for about 15 years, I pulled the 787 motor out of a 97 gtx, I cleaned the fuel tank, and oil tank replaced the MPEM, got new fuel lines, new oil lines, new fuel selector switch and filter, new spark plugs, new impeller, and...

Hey guys so ive had this problem all last summer and still having it and im hoping someone has a solution. So my 97 gsx has like a hesitation when you pull the throttle in all the way. For example if i take a sharp turn and mash the throttle it will only go to about to 4800-5000 rpms and if i...

I had my seadoo 3d 787 RFI out last weekend and it filled up with water, engine included. I pulled the plugs and blew out the water. I got it running again but now the oil is pumping in like crazy with white smoke coming out heavy from the exhaust. Am I in to replace the whole oil pump or could...

Just picked up a 97 SPX. I am now the third owner Great hull, a ton of fun, however I am having issues at wide open throttle. It bounces of the revs, like it is hitting a rev limiter. It starts alright, with a bit of priming, and it runs mid range beautifully. Has no problems at low revs at...