90 seadoo troubles please help anyone

[rumley79]

Hi I have a 90 seadoo so that I got a set for 100 bucks one works great the other though starts every time but won't stay running its getting gas and like I said does start but just die's right out in 5 sec can anyone point me in the right way here, I am a mechanic by trade but this is my first seadoo and I'm lost thanks

 

[Dr Honda]

What have you checked?? It could be fuel... it could be electrical... it could be mechanical.

 

[LouDoo]

Check your compression, in that old of a ski I wouldn't expect it to be perfect (150 psi) but it should be 135 or better.

Lou (Appalachian Technician)

 

[Mike Hawk]

Check Spark plugs had a similiar problem.

 

[rumley79]

I have compression of 142, the timing and all hoses look to all in order from manual diagrams, starts with starter fluid or gas but as soon as it fires up it cuts out, I've got starter off and front plate off, is there anything besides cut off or safety switch that can cause this problem, it seems it wants to run but something cuts it off as soon as it fires

 

[rumley79]

Thanks, there Brand new though, anything else you can think of?

 

[bljames]

hi i am new here and was wonderin if some one could help me i have a 91 seadoo with dual carbs and it keeps floodin out what could cause this it runs good wot on land but wont go in water

 

[LouDoo]

bljames, please start another thread this doesn't sound like the same problem that you are having.

rumley79, I would suspect that you are having a fuel delivery problem a couple of questions.

1. Do you still have the original grey fuel lines.

2. Have the carbs. been rebuilt.

Here's a thread that you might want to read over.

http://www.seadooforum.com/showthre...el-Delivery-Problems-low-revs-bogging-surging

Lou

 

[Bills86e]

your ski has a pulse fuel pump. It must suck gas from the tank, then push it tru the carb. If your selector valve is clogged or the separator filter cup lets air into the supply, no fuel runs the engine. The carburetor internal filter may be full of petroleum contaminates
and be the culprit cause of non-circulated fuel. On your model, fuel line ends dangle in the tank and are often deteriorated.

Bills86e

 

[rumley79]

Ok I will check the fuel tank and pull carb off and take a look there as well thanks

 

[rumley79]

No it has new black fuel lines and I'm not sure about the carb being rebuilt but I'm about to pull it out now and take a look, I'll let you know what I find out thank you.

 

[Dr Honda]

the 90 won't have tempo hoses.

Let me ask... does it die as soon as you let off the starter button... or does it run for a while after? If it's immediate... then the "Speed Limiter" has gone bad. It's the rev-limiter, and it controls the "Kill" of the engine.