This is a copy and paste, original poster was Steach from http://www.greenhulk.net/forums/showthread.php?27314-DIY-Fuel-System-Cleaning. I just found it very informative and thought I'd spread his good thinking.
If you have an older Seadoo with grey Tempo fuel lines (pre 2001) they need to be changed!
The primary symptom is the ski runs fine on the trailer but bogs when it?s under load.
You don't need the manual for this but it takes a while. Check the Mikuni site for explodes & rebuild info. http://www.mikuni.com/fs-carburetor.html
To replace SeaDoo Tempo fuel lines.
You will need:
20' of Gates Non Fuel Injection 1/4" fuel line(for a 951 you need 5? of ?? and 15? of 3/8?) (NAPA)
choke/carb cleaner
25 stainless screw clamps or a bag of Thomas & Betts Premium Ties (zip ties w/ SS inserts) (NOT at HomeDep anymore)
Note: SD uses Oetker clamps. To remove them just pry under them a little and yank the line off.
There are small fuel filters in each carburetor.
Remove the carbs. The filters are on the fuel-pump side of the carbs. The one on the PTO carb will be more clogged (the harder one to get to). -If you just clean the filters without replacing the fuel line it will only last few tanks before clogging again.
Take the fuel lines off one at a time; measure and cut new line, replace using stainless screw clamps or zip ties (especially the inter-carb lines as I?ve had a screw clamp interfere with the throttle linkage if aligned wrong). Work your way back to the fuel selector but don?t attach yet. Clean and lube the fuel selector valve until it flows fully in each position. Attach lines.
Most likely this crud in everywhere. I suggest emptying, & removing the gas tank for cleaning. If the fuel sender is not working there are probably parts sloshing around in the tank.
Be sure to clean the carb bolts and apply synthetic grease to the shaft and threads when reinstalling.
If you have an older Seadoo with grey Tempo fuel lines (pre 2001) they need to be changed!
The primary symptom is the ski runs fine on the trailer but bogs when it?s under load.
You don't need the manual for this but it takes a while. Check the Mikuni site for explodes & rebuild info. http://www.mikuni.com/fs-carburetor.html
To replace SeaDoo Tempo fuel lines.
You will need:
20' of Gates Non Fuel Injection 1/4" fuel line(for a 951 you need 5? of ?? and 15? of 3/8?) (NAPA)
choke/carb cleaner
25 stainless screw clamps or a bag of Thomas & Betts Premium Ties (zip ties w/ SS inserts) (NOT at HomeDep anymore)
Note: SD uses Oetker clamps. To remove them just pry under them a little and yank the line off.
There are small fuel filters in each carburetor.
Remove the carbs. The filters are on the fuel-pump side of the carbs. The one on the PTO carb will be more clogged (the harder one to get to). -If you just clean the filters without replacing the fuel line it will only last few tanks before clogging again.
Take the fuel lines off one at a time; measure and cut new line, replace using stainless screw clamps or zip ties (especially the inter-carb lines as I?ve had a screw clamp interfere with the throttle linkage if aligned wrong). Work your way back to the fuel selector but don?t attach yet. Clean and lube the fuel selector valve until it flows fully in each position. Attach lines.
Most likely this crud in everywhere. I suggest emptying, & removing the gas tank for cleaning. If the fuel sender is not working there are probably parts sloshing around in the tank.
Be sure to clean the carb bolts and apply synthetic grease to the shaft and threads when reinstalling.