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06 Seadoo Sportster 155 cranks but won’t start

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Danmcg04

Active Member
First post!

Just picked this boat up the other day and ran it for 2.5 hours straight with no issue on a fresh tank of Shell 93 vpower. Attempted to start it in the driveway today and it just cranks and won’t fire... It will occasionally try to fire but just can’t get running. Cranks strong so it’s not the battery. Checked oil and level is good with no water in it.

Toward the end of the day yesterday it did seem to lull a little, almost un noticeably, a couple times as I idled through the no wake zone on the way to the ramp. I have it a little gas to combat it but it didn’t seem to be much of a problem.



Any help will be much appreciated!
 
My Next step will be to check for spark, plug condition and then compression. Will be replacing the plugs no matter what I find.

Thanks for the feedback!
 
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