OK, I'll try and describe this as briefly as possible:
Rebuilt SJ 62T 760 engine over winter.
When I first tried starting the engine I found it wasn't cranking.
Bought a new starter, reconditioned the OEM motor.
Turns out it was the wiring to the starter, replaced all battery, starter and earth cables with new.
Got engine run in.
After about 2 hours of use, I took the ski out recently, it cranked fine and I rode for it 10 mins. Came off and it wouldn't crank. Could hear the solenoid clicking. Got a tow back to shore.
Back at the workshop, I took the starter motor out and I couldn't turn it by hand or with pliers. Not good, but it wasn't OEM and I've heard bad things. Turns out the roller bearing was shot.
I put the reconditioned OEM motor in and gave the engine a good crank. There was a little moisture in the engine presumably from the tow back, so it took 20 mins of cranking/drying plugs/cranking again before she would start.
Got the engine fired up and ran it for a minute or two to blast out as much water as I could.
Go back the next day, hit the starter button, and it doesn't crank. Can just hear the solenoid click.
Take the reconditioned motor out and it still turns, just, but is really stiff. Bearing & bushing are fine, but it's actually stiff inside the main magnets section. Another dead starter motor.
Pull off engine front cover: no damage to any bendix or flywheel teeth. Bendix appears to be working completely smoothly and without issue, though I'm not too sure how to test these, other than check the gears move forward smoothly, etc.
Took electrical box apart (maybe some weird electrical issue where starter is re-engaging when engine is running) and checked all connections. All looks just fine. Naturally ensured battery is strong and charged, and tried a second, known good, battery.
Any ideas whatsoever where to go from here? I'm utterly stumped and I don't want to gamble more 200 quid starter motors on it being fixed.
On top of that, I've not been able to run the engine properly after having some moisture in it, and I'm super-worried it's going to be ruined.
Not loving jet skis right now!
Thanks in advance.
Rebuilt SJ 62T 760 engine over winter.
When I first tried starting the engine I found it wasn't cranking.
Bought a new starter, reconditioned the OEM motor.
Turns out it was the wiring to the starter, replaced all battery, starter and earth cables with new.
Got engine run in.
After about 2 hours of use, I took the ski out recently, it cranked fine and I rode for it 10 mins. Came off and it wouldn't crank. Could hear the solenoid clicking. Got a tow back to shore.
Back at the workshop, I took the starter motor out and I couldn't turn it by hand or with pliers. Not good, but it wasn't OEM and I've heard bad things. Turns out the roller bearing was shot.
I put the reconditioned OEM motor in and gave the engine a good crank. There was a little moisture in the engine presumably from the tow back, so it took 20 mins of cranking/drying plugs/cranking again before she would start.
Got the engine fired up and ran it for a minute or two to blast out as much water as I could.
Go back the next day, hit the starter button, and it doesn't crank. Can just hear the solenoid click.
Take the reconditioned motor out and it still turns, just, but is really stiff. Bearing & bushing are fine, but it's actually stiff inside the main magnets section. Another dead starter motor.
Pull off engine front cover: no damage to any bendix or flywheel teeth. Bendix appears to be working completely smoothly and without issue, though I'm not too sure how to test these, other than check the gears move forward smoothly, etc.
Took electrical box apart (maybe some weird electrical issue where starter is re-engaging when engine is running) and checked all connections. All looks just fine. Naturally ensured battery is strong and charged, and tried a second, known good, battery.
Any ideas whatsoever where to go from here? I'm utterly stumped and I don't want to gamble more 200 quid starter motors on it being fixed.
On top of that, I've not been able to run the engine properly after having some moisture in it, and I'm super-worried it's going to be ruined.
Not loving jet skis right now!
Thanks in advance.
