• This site contains eBay affiliate links for which Sea-Doo Forum may be compensated.

97 XP 787 - Rich After Cleaning Carbs

Status
Not open for further replies.

shanebell618

New Member
Long time lurker, first time poster.

I have a 97 XP. Has ran great for two seasons. I took it out once so far this year and it ran OK but was bogging occasionally and sucking a lot of air. Everything points to lean condition / fuel delivery problem. So I figured it was time to clean the carbs.

I took everything apart, making sure not to de-sync the carbs. I inspected all the gaskets, diaphragms, cleaned jets and internal filters. The carbs looked pretty good overall. There was just a tiny bit of gunk in the filters, one pilot jet looked like it might have been a little restricted. All the rubber pieces were in good condition.

The problem is, after putting everything back together, the ski is running what appears to be extremely rich. It's smoking a lot more than normal and won't idle.
It will stay running if you are on the throttle, but it doesn't ever "clean out". I can compare it to starting up a 2 stroke dirt bike and immediately jumping on and trying to ride fast. IE: low power and a lot of smoke. Never really cleaning out the pipe.

What could have caused this from the steps I took above? I think I'm going to pull the carbs again tonight just to make sure the cables are all hooked up correctly?
That is the only thing I can think of at the moment.

Thanks
 
Leaking needle and seat. I suggest rebuilding with new Genuine Mikuni needle and seats and carb kits. These rubber and plastic internal parts do wear out and just "cleaning" them will not fix them. After 20 years parts do wear out.
 
Ok, that would make sense. Thanks for the reply.

Is there a way I could test the needle and seat while the carbs are out? Just so I know that is for sure causing the issue. Also, what is the best place to get official parts these days?
 
Can anyone confirm that this kit will have everything I need? Sorry for the silly questions, I just want to make sure I don't need to buy anything else. I already have a JIS screwdriver and pop off tester.
 
Status
Not open for further replies.
Back
Top