seadoo wont go

[drrtydog]

I just got a pair of seadoos and one of them will run just wont go when you give it gas. Where should i start and can you run these out of the water with like a hose or something in order to try and work on them?

 

[drrtydog]

Re: seadoo wont go

found the hook up to run a hose on it and started it up it ran at about 3k for a min then when it warmed up droped to 1k but reved fine. So i asked the previous owner and he said it would go but just not over 20. It also blew alot of oil out the exhaust and on the ground.

 

[Jeff Walkowiak]

Re: seadoo wont go

rebuild the carb.

 

[Jeff Walkowiak]

Re: seadoo wont go

the oil is probably goo from the exhaust,, pretty normal,, also do not run the hose with the engine turned off

 

[drrtydog]

Re: seadoo wont go

put it on the lake today and it would go a little above idle as soon as i gave it more gas it sounded like it was slipping cause the rpms would go up and the ski would go nowhere. Kinda like a car with a tranny and a gear is out is there trannys inside these things or just like a boat motor throttle and go? Its a 95 seadoo xp forgot to mention. Now i also have a 98 it a bit longer than the 95 yellow and black no stickers to tell me what kind. There is a shock under the seat as well. Anyway i took it out today as well and it wouldnt go over 30mph at wot what could cause this? Plugs are brand new.

 

[Indian Ground]

Re: seadoo wont go

Try checking the clearance between your impeller and housing. I believe the limit on sea-doos are 1mm.

 

[Jeff Walkowiak]

Re: seadoo wont go

it probably has a stripped drive shaft and p t o,, or it has the old pump liners and the black part of the liner is totally gone or ripped up.

just to the rear of the engine where yousee the drive shaft, grab the exposed section of the drive shaft with some vice grips and see if the shaft turns without it turning the engine also,, if it does the splines are bad if it feels tight, then your pump liner is gone,, remove the pump and replace the liner.

 

[drrtydog]

Re: seadoo wont go

sorry i dont know the tech words for the parts so bare with me and as far as you said pump liner can you explaine where that is? Anyway i took the rear jet thing off which has the impeller in it off. The shaft was hanging there so i messed with it and it came out so i looked it over and both ends are perfect looking as far as the spline. That is as far as i got with it.

 

[JUSTINTIME]

Re: seadoo wont go

check impeller clearance to liner

 

[drrtydog]

Re: seadoo wont go

well the clearance changes depending where the impeller is. Goes from a hair to as thick as match book plus it looks like there are soom gouges in it. Now could this be the problem with my other ski cause it goes but tops out at like 30mph and shows 70 on the speedo.

 

[JUSTINTIME]

Re: seadoo wont go

your best idea is get a manual
it is well worth it

 

[zzzzz]

Re: seadoo wont go

the piece surrounding the impeller is called a wear ring...any sand/shells/seaweed/etc sent thru the jet pump can cut grooves in the ring and cause cavitation...pull the pump and replace the wear ring...see parts diagrams at: HLSM.com

 

[drrtydog]

Re: seadoo wont go

ya i figured it out and it is only on fresh water im in iowa. Does it just pop out with a little force?

 

[Dryon]

Re: seadoo wont go

It helps to know the year & model so you can receive correct answers to your questions.

 

[drrtydog]

Re: seadoo wont go

well i said seadoo and im assuming every other waverunner/jetski out there works the same to make the ski go. But if needed the one is a 95 xp and the other is a 98 xp i think it has no stickers and the 95 is the one that will not go anywhere but the 98 will just not over 30.

 

[Dryon]

Re: seadoo wont go

There are differences between models and some differences from year to year. There are differences in the pump & drivelines. I suggest you get a shop manual so you will be aware of any special tools and any cautions before you start. You can get one off of ebay for about $10

 

[zzzzz]

Re: seadoo wont go

you can cut the wear ring into 2 or 3 pieces and slide/pry it out between the impeller and the housing...then you EVENLY tap the new one in with a rubber mallet

 

[drrtydog]

Re: seadoo wont go

ok now i have a manuel and i still dont know why the ski wont go anywhere iv changed the wear ring and it is the same looking as the old one spot i have a bigger gap than the rest so the caseing must be out of shape or when you bolt it back on the ski it takes its shape. So with that in mind what else is there for me to check and is there any possible way to check what ever i do to see if it fixes the problem without taking it on the water cause its now down in the 60's here hate to freeze but i want these working so i can store them and be ready next season without messing with them.

 

[Jeff Walkowiak]

Re: seadoo wont go

the round disk on the rear of the engine is called a" p t o" it has splines inside and it meshes with the splines of the drive shaft sometimes the splines wear out and slip, if it is worn you need to replace the drive shaft and the p t o. however the ski will usually not move at all if this is the case and it will make a screeching sound when you give it gas

 

[Dryon]

Re: seadoo wont go

There must be no more than 1 mm (0.04?) maximum clearance between the wear ring & impeller all the way round. You need to confirm this by carefully checking with a feeler gauge per your manual in the propulsion system section. Rotate the impeller so you can check several points around the wear ring. Also need to check radial play of impeller shaft. If clearance and/or radial play are out of spec?s then you may need to replace the pump assembly.