goldenrdog
New Member
1996 Seadoo Speedster - when first taking out boat ran great Last 2 times when we are 1st taking the boat out it will run fine for the 1st 10 minutes after that it's very hard to get up on a plane when we do the port engine will toogle Between 3000 and 4000 rpms and the starboard engine will run at 8000 rpm. At times has a lack of power and a lack of thrust and at times the port engine will shut off. The previous owner had recommended us running a oil gas mixture when we would fill it up with fuel but boat it is also oil injected. We change the spark plugs last time we took it out and same things are happening. Link to video when we can actually get it into a plane of what happens to rpms.
photographs of new spark plus, cleaner ones are from port and dirty one from starboard engine. These are only from running for about 2.5 hours.
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