my sea doo sounds over heating warning

[wv1girl]

I recently recieved a sea doo I think it is a 1992 and i redid the carbs and bypassed the oil injector. today was the first time taking it out after the work and after about 5 to 7 munites of hard ryding the overheating alarm sounded. what could be causeing this?

[Rotax787]

Re: my sea doo sounds over heating warning

you bypassed the oil injector??!?!?!?? did you install a block off kit and pre mix your gas? if not big suprise your engine is overheating and you need to reinstall your injector or buy a kit.

Brett

[wv1girl]

Re: my sea doo sounds over heating warning

I did install a block off kit and removed the fly wheel and I also put pre mix in. any other sugestions?

[Technical Support]

Re: my sea doo sounds over heating warning

You either have pump damage or clogged cooling lines/fittings/passages - you'll just need to inspect everything yourself.

[1fastski.com]

Re: my sea doo sounds over heating warning

first , make sure your engine is really over heating . it could be a bad sender. if you can use a temp gun that would work best but if not the engine should be ok to touch when running . does it stop buzzing when riding normal ?

things to check will be the jet pump { make sure the inside is not warped }

the small fitting going out of the ski at the rear exhust outlet they tend to clogg.
depending on where it was used you might want to pull the head and check the block for sand or mud if you cant find the problem .

[wv1girl]

Re: my sea doo sounds over heating warning

I replaced the sensor and it doesn't overheat any more but now when you run full throttle you get a miss. If you run about 95% throttle it runns great. could this be plugs or a rev limiter of some kind or is there something else I need to check it is all stock except I mix my own gas I don't use the oil pump so I wouldn't think I hit the rev limit. but I don't know that is why I am asking for any sugestions.

Thank you for all your help Everyone

[Bill O'Neal2]

Re: my sea doo sounds over heating warning

Your impellor or wear ring or both need some work. It is very common on those older models to hit the rev limiter when the impellor is slipping due to damage to those parts.

[wv1girl]

Re: my sea doo sounds over heating warning

I want to pull the inpeller and look at it but I am not sure what that involves. Am I going to have to replace a lot of orings and seals or which parts do I need to have on hand befor opening the inpellor shaft. Also should I buy an inpellor shaft? Is that most likely the problem?

[Technical Support]

Re: my sea doo sounds over heating warning

Read the tech articles, watch the videos.

[Bill O'Neal2]

Re: my sea doo sounds over heating warning

Don't buy anything until you remove and inspect the parts for damages. All you need is tools and a tube of silicone to replace the pump ( and whatever to fix it).

[fedorov5549]

Re: my sea doo sounds over heating warning

What about your rotary valve shaft? I hope you are still sending oil from the oil tank to that. Just in case you forgot.:emoticonw