Backfiring Seadoo

Seadog · 04-03-2012, 02:38 PM

Hi all

I have just recently rebuilt a 2004 Seadoo RXP with a SC 1503 Rotax engine.
Today I attempted to start up, on the first couple of tries she would not fire, left it for a while and tried again.
This time the engine would crank over and backfire or misfire with a loud bang coming through the exhaust, I referred back to the troubleshooting manual, and checked the timing, the spark plugs and caps, I put new fuel in the tank and have basically done everything the manual says, but still the engine continues to backfire or misfire with a loud bang.
I have been working on this Jet Ski for over 4 weeks and just want to get on the water.
Does anybody have any solutions?

Seadog · 06-09-2012, 11:55 AM

Got any recommendations?

04-03-2012, 02:38 PM	#1
Seadog Junior Member Join Date: Apr 2012 Posts: 2	Backfiring Seadoo Hi all I have just recently rebuilt a 2004 Seadoo RXP with a SC 1503 Rotax engine. Today I attempted to start up, on the first couple of tries she would not fire, left it for a while and tried again. This time the engine would crank over and backfire or misfire with a loud bang coming through the exhaust, I referred back to the troubleshooting manual, and checked the timing, the spark plugs and caps, I put new fuel in the tank and have basically done everything the manual says, but still the engine continues to backfire or misfire with a loud bang. I have been working on this Jet Ski for over 4 weeks and just want to get on the water. Does anybody have any solutions?

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06-09-2012, 11:55 AM	#2
Seadog Junior Member Join Date: Apr 2012 Posts: 2	Got any recommendations?