Please help , strange problem

[Kyle61]

Ok guys I’ve got a problem , I’ve cleaned carbs , fuel filter, drained fuel refilled with premium fuel. New battery . None of this has worked. Jet ski is a 97 GTI seadoo . Starts and idles perfect , takes off slowly fine. Full throttle it bogs and continues to bog at about 25 mph . Weird thing is if I hit a decent wave with it full throttled , it hard a little and takes off like there never was anything wrong. If I hit another wave it will be back to bogging. If I stop and floor it again it bogs again????

 

[GGuillot]

I'd rebuild the carb with an genuine OEM kit. Does it have the original grey fuel lines? IF so, I'd replace those, get a new fuel selector. You could bypass the fuel selector and see what happens. But it's probably carb/fuel delivery related, just go through all that thoroughly.

 

[mwat65]

Also check all your connections and grounds. Clean them all and apply dialectic grease to everything. Check all the connectors and grounds in front and rear eboxes.

 

[Kyle61]

I'd rebuild the carb with an genuine OEM kit. Does it have the original grey fuel lines? IF so, I'd replace those, get a new fuel selector. You could bypass the fuel selector and see what happens. But it's probably carb/fuel delivery related, just go through all that thoroughly.

 

[Kyle61]

Thank you for the help

 

[Kyle61]

Also check all your connections and grounds. Clean them all and apply dialectic grease to everything. Check all the connectors and grounds in front and rear eboxes.

Thank you

 

[A_Bred]

Funny you write this. Mine does the same thing which is new over the past week, and this is the first time I have ever filled the tank to the very top. This weekend before it goes back out I am cleaning my plugs just to make sure they are not fouled, as well as checking my fuel filter and possibly cleaning the power valves which is easy I hear because they can stick (my oil pump was disconnected when I bought it, which is getting replaced and hooked up by me as a winter project - and when I say power valves I'm talking about the the exhaust valves - at least I think this is what they are called - new to this). In addition I have gotten gas the past couple of times where I normally do not, and have in the past suspected bad gas there (happened about the same time my bog issues started). I believe in starting with the easy to look at basics first and go from there....... also a few other notes ----- I'm sure you are using above 91 octane.. I have a 1200 Kawasaki Ninja and anything under 93 makes it cough and choke and bog, these Jet ski's are the same. sorry just reread the beginning.

I also am at the moment running TWC oil mixed in the gas (which has been temporary, and am switching to XPS type oil - which I believe is the oil I should use because TWC oil will shorten the life on the Sea Doo jet ski's - please if anyone can verify this that would be awesome - looking through threads now for that info).
Thanks sorry such a long note.

 

[Kyle61]

Funny you write this. Mine does the same thing which is new over the past week, and this is the first time I have ever filled the tank to the very top. This weekend before it goes back out I am cleaning my plugs just to make sure they are not fouled, as well as checking my fuel filter and possibly cleaning the power valves which is easy I hear because they can stick (my oil pump was disconnected when I bought it, which is getting replaced and hooked up by me as a winter project - and when I say power valves I'm talking about the the exhaust valves - at least I think this is what they are called - new to this). In addition I have gotten gas the past couple of times where I normally do not, and have in the past suspected bad gas there (happened about the same time my bog issues started). I believe in starting with the easy to look at basics first and go from there....... also a few other notes ----- I'm sure you are using above 91 octane.. I have a 1200 Kawasaki Ninja and anything under 93 makes it cough and choke and bog, these Jet ski's are the same. sorry just reread the beginning.

I also am at the moment running TWC oil mixed in the gas (which has been temporary, and am switching to XPS type oil - which I believe is the oil I should use because TWC oil will shorten the life on the Sea Doo jet ski's - please if anyone can verify this that would be awesome - looking through threads now for that info).
Thanks sorry such a long note.

Thank you for the info, I need to check into the power valves you are talking about. If you find the fix please let me know.

 

[mikidymac]

Absolutely don’t run TCW-3 oil.