ddanster
Member
Wanted an opinion of the possible failures that occured before tearing it apart. I took both of my seadoo gs out last weekend. My buddy was riding one and ran perfectly for about an hour. Suddenly the engine cut out on the 1999 seadoo gs and would not start. Plenty of fuel, is oil injected with a little premix. It did sound abnormal when attemping to start it again on the water. I pulled it out of the water and it would crank normally but would not fire what so ever.
About a month ago I did a compression test and it was sitting about 131 PSI on each cyclinder...worn but runnable. I tested after this failure and it was about 120 PSI in each cylinder...rather abrupt drop. Spark is strong and fuel supply is not an issue. I removed the air silencer and sprayed a little starter fluid into the carb..it spits but never fires up. Spark plugs were a bit dry so it was running a bit lean I believe. Perhaps timing went kaboom i dunno.
Think I provide enough info..what do ya think?
About a month ago I did a compression test and it was sitting about 131 PSI on each cyclinder...worn but runnable. I tested after this failure and it was about 120 PSI in each cylinder...rather abrupt drop. Spark is strong and fuel supply is not an issue. I removed the air silencer and sprayed a little starter fluid into the carb..it spits but never fires up. Spark plugs were a bit dry so it was running a bit lean I believe. Perhaps timing went kaboom i dunno.
Think I provide enough info..what do ya think?