Stalled then clanging noise when trying to restart

[Daninvan]

96 gts running fine suddenly stalled clanging noise from motor when trying to restart
Any possible ideas ?

 

[Mraw]

Try and turn the motor over by hand, sounds like the motor or jet pump might be siezed

 

[drspence]

96 gts running fine suddenly stalled clanging noise from motor when trying to restart
Any possible ideas ?

Were you wide open throttle before this happened? Reason I ask that is because these older skis don’t have limiting controls to prevent overheating like the newer DI’s do and it’s not hard hard to over work them and cause damage. Sounds like you could have blown a ring in one of the cylinders tho. Get a compression test tool for $20 on Amazon and check cylinder pressures, anything less than 150psi is a good indicator it may need a top end rebuild. If pressure is really low, like <120 then I’d say you definitely blew a ring, or worse.

 

[hellz_wings]

Happened to me once, ended up being super loose starter just barely hangin on. You can lean in and reach underneath tge motor to shake it with your hand and if its solid it aint that. Turns out mine was missing the rear round bracket thingy where it mounts (theres two bolts in the front and one holding the starter to this bracket). Luckily it didn’t brake any teeth on the flywheel!

 

[Daninvan]

Try and turn the motor over by hand, sounds like the motor or jet pump might be siezed

It will start just very loud knocking sound seems to run ok these units have allways been a little Smokey till they warm up

 

[POPPS]

I agree with "Raw",,,pull the pump,,,pull the plugs,,,see if the crank rotates smoothly by hand,,,,pumps don't "clank!"',,,when their bearings are seized,,,the hull will vibrate,,,

 

[Ckrawiec]

It will start just very loud knocking sound seems to run ok these units have allways been a little Smokey till they warm up

Sounds like you may have throw a connecting rod.....I blew up a Kawasaki once, the rod punched right thru the bottom of the case. I fixed that ski.....had it TIG welded back together........

A quick compression check might tell the story

 

[RocketFox650]

I'm with the guy with the loose starter. Assuming the stall was sudden and odd with no other crazy symptoms, look for what's changed first. You have a loose starter, maybe a wire to the block, etc and it's hot making a poor connection, that can cause a lot of weird issues. The pinging, is it detonation? Kinda sounds like you were running into an issue with combustion and now have a noise related to combustion over the pump.

Not saying the others are wrong, but if you're hearing hoof beats, look for horses. Not zebras. No horses left? Find yourself a zebra problem. Hell, get a unicorn. But save yourself a lot of BS and start small and outside, work inward over everything. I mean, a connecting rod? It just stalled and makes a metallic noise... A sure could be that, but the lead up was pretty anticlimactic for that. Your SeaDoo will fire up and run on one cylinder. It'll run like shit, but it'll do it, so if it's rings in one cylinder, it should still do more than endlessly crank and ping. Again, not a bag thought, differences between cylinders are super important, more so than the PSI in general I'd argue. But it doesn't add up as well with what you're describing. Only you know what happened and what it sounds like though. We're trying to understand and offer advice. Gl mate.