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I have a 2005 Sea Doo sporster with the 3 cylinder 4 tec engine. It has been running fine until just recently when it starts stalling out when i pull the throttle back to idle. it typicaly does this after i have run it a while not usually when pulling away from dock. once it stalls it is...

The boat ran great when put away for the winter. seemed to run OK in driveway although at idle and only for a few seconds. Ran OK on the run down the channel to the lake, but as soon as I hit the throttle I lost power and got backfire in the engine. it ran quite rough. occasionally it would...

Hello. I have a 2005 Sea Doo Sportster that spends from May - October in fresh water in my marina in Lake Michigan. Looking at the hull today i see several dime to quarter sized blisters in the gel coat. When i push on them, a tiny bit of reddish water comes out. There is some hard water...

Hello all. So im sure i am not alone in having those cheapo plastic hinges come apart. So i ordered hinges but noticed that one side has philips screws, but the other has rivets into the hatch cover. tried drilling the heads off, but the main rivet cylinder is still in the fiberglass...

As i have read these wear out over time. Mine wont hold up at all. currently using a stick, but thats pretty crappy and dangerous way to do it. I see a LOT on Ebay which are for jet skis, but none seem to be for the 2005 sportster or at least they dont list that model. Another poster here...

I have a 2005 sea Doo Sportster with the 155hp motor. I am reading about which hose to clamp in the event you have to tow the boat. Several photos have been posted on this site and You tube as well as my manual. problem is none of em look like my engine. Mine has a closed cooling system with...

Hello I did a quick search and still havent found a definitive answer here. I just bought a 2005 Sea Doo Sportster 155. Time to put it away for winter and I am hearing different things about whether I need to put antifreeze in the exhaust. some say it is self draining, others say to be safe...

1996 Sea Doo Challenger 787. So after replacing my wear ring (OK, the shop did it). my boat ran OK for a while, but this week after sitting a couple weeks I took it out and it started and idled just fine all through the marina. When I opened up full throttle out in the lake it revved up for...

My boat was running pretty well at the end of last year. This spring I put it in the marina and it seemed to idle fine. When I gave full throttle, it got up to 7000 RPM and initially got on plane, then when I turned sharply, I felt "something" and lost most of my thrust. The engine still gets...

Hello again. Some may remember my recent post about my very troublesome challenger. It is still overheating, but things went from bad to worse to terrible when it sank at the dock a couple weeks ago. It had burnt through the exhaust coupler after I had just replaced it. By the time the...

I have a 1996 Sea Doo Challenger with 787. This spring I found that one of the plugs on my exhaust manifold had corroded through so I removed the manifold and alumiwelded the hole closed. It seemed to be a solid repair. So I put all the parts back together and even used RTV gasket material...

Hello. I winterized my jet boat like always, but for some reason both cylinder heads have cracks from freezing in them. the engine runs fine, but water pours out from both cylinders. I can feel a crack in the PTO cylinder. Obviously l need some major work, but the question is this... how...

Hello I have a 1996 Sea Doo Challenger which was running fine until yesterday. When I accellerate, I only get about 5500 Rpm out of the motor and it just bogs down. I had my buddy sit way in front and i managed to get it on plane and then the rpm went up to maybe 6300. Max speed about...

I have a 1996 Challenger and the trim lever is not working correctly. It moves and it seems to move the thrust collar a very tiny bit, but not enough to effect the angle of the boat. I pulled the assembly from the boat thinking I could tighten the cable (it appears to my untrained eye to be an...

I just purchased a 1996 Sea Doo Challenger jet boat. The boat is used, but in generally good shape. However the boat seems to take a long time to get on plane. I knew when I bought it that the trim wasn't working. The lever moves and the nozzle moves a few millimeters, but not much. I can...

Hello everyone. I just purchased a 1996 Sea Doo Challenger jet boat because my girlfriend hates my jet ski. I figured this would be a good place to learn more about how to get the most from it.