random bogging out

[seadoonewbie]

1997 seadoo gsi sat for a year. took it out. ran good all day. at end of day started to randomly bog out. always started up but when giving it lots of gas it would bog. after that started fine and drove it to the launch going 25 mph fine. checked the spark plugs, look good. dont no much about these motors. any ideas.

 

[kustomkarl]

How clean is th fuel in the fuel tank. Is it possible that they got some crap in the carbs and they need to be cleaned.

Karl

 

[seadoonewbie]

the first day i took it out i ran it on the fuel that was in the tank for a year and it ran great all day. it was the second that it started bogging out at the end of the day. then tookit out again for a third day and it ran fine for about an hour then started doing the bogging out thing. i can start it up fine and cruise it around gently just fine. its when i really get on and off the throttle that it starts to act up. also when going about 50mph then slowing down i can hear a kind of un-natural rumbling sound when going from about 35 to 20mph that ive never heard before this problem started. any other ideas would be great. thanks

 

[kustomkarl]

Well, I would look around the engine and check to see if it has any loose nuts or bolts. Does that pwc have GRAY fuel lines? There have been lots of problems from them deteriorating from the inside out. They look fine but the insides of the lines clog the small filters in the carbs. If that is the case remove one for the correct diameter, measure what you need to replace and go to Auto Zone and get new Black Fuel line. Cut it to length and replace all the fuel lines one at a time, so you don't get confused on which one is which. If the clamps are bad or rusted replace them too, with stainless steel ones. Keep us posted if this is the problem. We'll be here if you need more help.

Karl

 

[seadoonewbie]

Thanks for posting Karl. Yes, it does have grey fuel lines. How many fuel lines are there? Do you know if they are all relatively the same length? How about the small filters on the carb that you mentioned...will those clean themselves out since there is no crud or should I look into pulling those out and either blowing them out with compressed or or replacing them? Also, do you think riding it throughout the day will be ok or could it possibly cause damage? Thanks for your help, real friendly site you got here.

 

[kustomkarl]

I personally would replace ALL the GRAY fuel lines. You can't see the problem with the lines the gas is breaking them down and causing the lines to slowly clog the internal filters in the carburetors. Take a sample of the sizes you need, than measure the lines per size and go to like Auto Zone and ask for Black Fuel lines... this size diameter. Only take off one at a time so you can replace them correctly and not get them mixed up. Buy new stainless clamps for the larger fuel lines, for the small Fuel pump lines use plastic zip ties. If you get in a jam give us a shout. Thanks for the complement on the "friendly site" here, but I'm just a member here like you...I enjoy everyone's good attitude in a friendly atmosphere.

Karl

 

[seadoonewbie]

ok took it out today and ran like a champ while it was full of fuel. once it got down about a quarter or so of a tank it started the random bogging. It bogged immediately after a 360 and also another time while I was making a simple slight right turn. It was like it ran out of fuel but if you pushed the thumb throttle in immediately after it did it it seemed to help the bogging and came back to normal. So, could it be air getting in the lines?

 

[DiveMode]

quick question... what do the plugs look like when you pull them?

 

[kustomkarl]

It is possible that after you changed the fuel lines that some of the crud from the GRAY fuel lines got in the carburetors and is clogging the small filters in the them, from before you changed the lines. You might need to clean the carburetors. If you want you could join as a "premium member". As a premium member you can down load a authentic seadoo manual from the seadoo manual library. In the library is a variety of manuals for almost all years and models. You can view as many as you like on line as a PDF file, or download it and print it for your personal and privet use. There are operator manuals and repair manuals for you to do your own repairs on your seadoo. The repair manuals have everything from troubleshooting, repair procedures to winterizing. It contains wire diagrams torque specs and pictures for disassemble and assemble instructions. In the spec sheets it tells everything needed to maintain oil changes, spark plug gaps, carburetor rebuilds and impeller wear ring tolerances. Click on the "Seadoo Manuals" link at the top of the page for more details. If you need any help or get in a jam, we are always here to answer your questions too.

Karl


Karl

 

[seadoonewbie]

quick question... what do the plugs look like when you pull them?

I only pulled them once, just before I took it out yesterday and they looked perfect. brownish/tanish, no white residue or black residue.