09-03-2013, 09:18 AM #1
- Join Date
- Sep 2013
1999 Seadoo Challenger Oil in Cylinder 1 fouling out spark plugs
I'm having an issue with a 99 Seadoo Challenger (787 Seadoo motor) where it constantly fouls out the spark plug in cylinder 1 after sitting for a few hours. I can get it started by removing the plug, turning the engine over for a few short 5 second bursts to remove the oil then putting in a new plug. Once the new spark plug is in it will start right up but smokes a lot due to the excess oil.
Has anyone come across this or a similar issue before? I'm hoping it's something simple such as a bad gasket...I'm just not sure where to start. Any help would be appreciated!
09-03-2013, 12:42 PM #2
Could be a bad crank seal or a bad rotary valve shaft seal. Most likely a bad crank seal if the oil is only in 1 cylinder. If it was a bad RV shaft seal, oil would be in both cylinders.
09-03-2013, 06:08 PM #3
- Join Date
- Oct 2005
yup, what he said ^^^
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