Tima421
Member
Hi everyone ! New this summer to jet skis .100% mechanically inclined ( owned snowmobile, dirt bikes etc) Picked up a 1997 gti about 6 months ago . Idles perfect, runs great ( low & top end ) . 3 times out w 2 people on it no issues whatsoever. Meanwhile found another 1997 gti exactly the same . Both in great condition for the year . Finally was able to take it out for the first time a few weeks ago ! Runs great just like first one , got past “ no wake “ hit throttle, revs up to limiter but really no thrust ( looks like a hot tub full blast under the jet ski ) so back to trailer I go . ( impeller was totally fine) Found some good chunks of wear ring missing so I replaced it , neoprene seal & changed oil in pump . The clearance was so tight it actually shaved a hair off when first started . I knew the other jet ski had run great several times out already ( & exactly the same machine ) so I figured I’d swap out the whole entire pump assembly w the other one. So put the assembly w the new ring etc on the first on I had purchased that ran perfect w no issues & put that one on the ski I had taken out with the “ no thrust issue “ . Took both out this past weekend.... now both do the same thing ( almost couldn’t get to plane w 2 people on it ) after u can finally get both to plane out they run sweet the issue is only on take off ! I’m thinking both are 100% air leaking. I checked for anything stuck in grate or around drive shaft on both . Spun the pto by hand & impeller everything seems tight / together. What bugs me is that the one that ran perfect several times now w the opposite pump assembly w new parts runs the same like the newer I had bought w the “ no thrust “ issues ! & the newer one I bought w issues has the pump assembly from the one I first that ran great several times but does the same thing now ? Sry for the slightly confusing post lol