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My thoughts: 1.. For the TPS, there is a routine to calibrate the TPS in CanDoo. Run that to make sure your TPS is calibrated. 2.. The fuel pump should be 60 PSI (58). I put an inline gauge on it as you might get 60 PSI at idle and not at WOT. (Mine was fine) 3.. The fuel filters are easy but...

Go to any Seadoo Dealer and ask them for an oil change kit for a 2008 Seadoo Speedster 150 215 HP. They will give you a kit with a filter and the Semi-Synthetic blend oil required for your machine.

Hold the throttle wide open and crank. That enables "drown mode" which will turn over the engines with no fuel.

The bilge pump is wired directly to the battery as well as to the switch. It should not matter if the battery is off, the pump should run. The easiest way to troubleshoot is to put it on the trailer and put enough water to reach the outside waterline. You should be able to see where it is...

My thoughts: 1.. How old are the plugs? I replace the plugs each season...period. They are cheap and these machines are high strung with high piston pressures. 2.. Did you pressure test the Intercooler? I had surging and it was a leak in the IC. I am in brackish water so could actually see...

Couple of questions, then a comment: 1.. What is the temp of the water you are running in? What is the air temp as well? 2.. What RPM are you at at WOT? Now for my comment... I would never run at WOT for 10 minutes straight, so I have no idea if my machine would overheat under those...

Idle air control is metered by the idle control valve when the throttle is closed. Next time it will not start, advance the throttle a bit and if it starts, your air control valve (ACV) is suspect. The ACV is on the throttle body and is a servo type motor that operates an alternative air path...

Should not have debris in you IC on the air side. Only sure test is pressure test the water side with compressed air. I had a leak in my IC and it caused surging and throttle flat spots.

Advice from someone who rebuilds wrecked cars.... Never turn over any engine with a questionable history with the plugs in it. As mentioned above. Pull the plugs. Add some Marvel Mystery Oil to each cyl. Let sit for a day or so. Turn over with no plugs until you don't have spray. Put the...

Don't panic yet. Are you sure it is burning oil? Is the oil level dropping? Any blue smoke? There is the valve cover seal on each spark plug hole that if they leak will fill the spark plug hole with oil above the plug. When the plug is loosened, that oil will go down in the spark plug hole and...

I would go OEM wear ring and impeller. This way you have a baseline for everything moving forward.

+1, pull the plugs and upload a photo.

Does the sound match-up with a stumble in power delivery at that speed? When were the plugs last changed? What do the plugs look like?

Do you have a photo of the plugs? Are you in fresh or salt water? If you are in fresh, the intercooler leaking can cause white substance on the plugs.

What indication are you using to determine that your Seadoo is running lean?

There is no inspection that can be done on the SC to determine if it will fail or not. Do I really need to rebuild the super charger on a low hour ski/boat?

No, the start/stop wakes up the ecu. The key is only read after wakeup.

Your 180 with 215 should have been able to 47 MPH as the 260HP version can break 50 into the 54 mph range. Like I said before, I thought the 215 ECU would go out of MAP range with the X-Charger without a tune. When you add the external IC, you will see I guess.

How to upgrade your 215hp Sea-Doo - XCharger Supercharger

Let us know how you make out...