Carburetor?

[redrider11]

hello, I just got a seadoo from my grandfather and its been sitting for a while. It has a newly rebuilt engine and I've replaced the spark plugs and drained the gas tank and put fresh gas in, put a new battery in. But it still won't run, when i put the new battery in we got the engine to turn over a few times but then it wouldn't turn anymore. I think its the carburetor but I cant figure out how to get it out. Please help! I need to have this thing running for my trip to Florida on June 13th!

 

[IDoSeaDoo]

If you put in a new battery, and it's still turning over slowly, you may have a bad starter, or bad cables. DO NOT TRY JUMPING WITH A RUNNING VEHICLE! (this can kill your seadoo's computer) If you're going to jump it off, jump it off a non-running vehicle, or just a car-battery. As far as the fuel system: does the craft have the original gray fuel lines? They are pretty much GUARANTEED to break down and cause this molases-type gel to gunk up the works in the carb. You may want to rebuild the carb with a Mikuni rebuild kit. (don't go off-brand, they're said to not work right)

 

[B_PWC]

Remove the plugs and see if it will turn over... I am with IDoSeaDoo; more than likely the starter.

In addition to the grey fuel lines, check the pickup lines in the tank. They break down and will cause it not to get fuel.

 

[IDoSeaDoo]

YES! Pickup lines were the culprit in my '92 GTS. I'm not sure if they switched over to the solid plastic pick-up baffle by '94, but it's worth a check. If you don't want to pull it apart, you can maybe look around online and find a diagram of what's inside your fuel tank (or call your dealership). If the diagram just features a plastic cylinder with 4 nipples on top, it's the solid baffle and you're safe; otherwise go ahead and pull it apart. I don't have my book on me right now and all the web sites seem to only go back to 1996 for their diagrams. You can see if you're sucking fuel by disconnecting the return line as mentioned earlier, but if you do have rubber pick up lines, your days aren't just numbered, those things WILL break on you, probably when you hit a big wave. They are made of the same rubber as the oil lines and deteriorate with long exposure to gasoline. Don't get stranded like I was in the middle of a lake on a weekday evening (scary stuff) for $3 worth of fuel hose.

 

[redrider11]

well since its been sitting so long we thought it would be a good idea to go ahead and clean the carb anyway, but i'll check on all that other stuff to. Thanks!

 

[redrider11]

I've cleaned the carb and reassembled everything and still nothing. The engine turns over but nothing else happens so I pulled a plug out and tried starting it again and there was no spark. Should I replace the plug wires? Also where do I get parts from?

 

[B_PWC]

I've cleaned the carb and reassembled everything and still nothing. The engine turns over but nothing else happens so I pulled a plug out and tried starting it again and there was no spark. Should I replace the plug wires? Also where do I get parts from?

Be sure to check the ground wires to the engine. With the engine turning over I would assume it is grounded but "KISS"; keep it simple.

Before you order parts I would be sure to verify the ground when you test your plug. The coil or MPEM can be the cause also... So many factors.

Good luck.

 

[IDoSeaDoo]

I bought a jet ski for really cheap, only b/c the ground to the coil was bad. check that, as well as all the fuses. If fuses are good, make sure they're getting power. Simply put a test light on them, or measure with volt meter. Once, i had a condition where I was only getting 8V to the fuses...