04 GTI LE Spark plug problems

[scotch]

Jet Ski would get up to about 20mph and then bogg down. Replaced spark plugs and it ran fine for 4 hrs and then started doing it again. What would cause plugs to go bad.

 

[Bills86e]

Do a comparison on the plug reading chart. Theres one in the sticky thread on carbs adj. forum top.

 

[sra2786]

Our 04 GTI LE is doing the same thing. What did you do to fix the issue?

 

[Bills86e]

99% of the time its fuel system related.

 

[sra2786]

What do you mean by fuel system related? What do we do if it is fuel system related. Our Sea Doo mechanic did an adjustment on the carburetor (I think or it was the oil pump but I thought he said he could not adjust the oil pump because there was no adjustment on ours) so that it would run leaner on the oil. The mechanic said he likes to run the oil rich to be safe. Do you think it is still running too rich? Is this an adjustment we can make to the carburetor or should we have our mechanic do it for us? FYI. We just had a new engine put in our SeaDoo also.