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As I said, im at a loss for how it started and ran the other day at the lake, unless this all happened at the end of that 20 minutes. And I don't understand how it would happen on a motor with very low hours, even if it had been sitting 10+ years. I guess my grandson is going to learn to...

Further UPDATE: I remembered I have an inspection camera so put it to good use. These are all the front cylinder. That chunk of metal is embedded in the underside of the head. And there are lots of gouges in the head in other places. Is that chunk of metal part of a piston ring or skirt? I cant...

UPDATE: We ran a compression test. Front: ZERO Rear: 90psi after about 3 seconds cranking maybe a reason we observed: The front plug is the cleaner one. So obviously a front valve stuck open and rear compression not in spec either. (Grandson says 150psi desired) Im at a loss for how it even...

EDIT: NEVER MIND ALL THIS, JUST SKIP TO THE NEXT 2 POSTS. BAD NEWS. REBUILD TIME I GUESS. -------- Purchased from a dealer “new old stock” on Ebay for a lowball bid in 2007. Probably run not more than 25hrs around 2008-2009 - ran fine then. I had it up to 70mph with my fat ass on it. Family...

Estimate less than 25 hrs on it. Bent the rear drive shaft years ago when a tow rope got sucked up. Sat for nearly 10 years in shelter. It was winterized and engine fogged but got water in the hull once for a few days when it rained before moving to shelter. Gas tank is empty or nearly empty...

Need to rebuild 2005 3D rear driveline. Most PN lists, including BRP site, only show 272000150 as the drive shaft for this application. However, a couple of online parts dealers say PN 271001553 also fits. The latter part will save me some money but i need to make sure it fits. Does anybody...

I bought a new 2005 3D base model in late 2007 and am happy with it. Bought it mostly as a first-ever PWC to ride the grandkids around and see if i want to get a bigger one. Gave $2500 + tax (but sold with no warranty) then and had to drive 300 miles to Huntsville to pick up. I did have a...

I have the ebay manuals but they dont give an absolute compression for the 787RFI engine. (it doesnt have a compression test procedure in it). The spec for compression ratio is 6.0:1 (same for 3D base or DI version). Not sure you can infer anything from that data. I suspect these engines "leak...

follow up on my 3D :hurray: Just in case anyone has similar problem. Eventually my 3D would not even start. Finally diagnosed as bad plugs, even though they looked new. I replaced them and started right up, with a little less smoke. I could even measure leakage current between body and...

one of my buttons acted weird too Had my 05 3D out for the first time this past weekend (bought a new old stock one). Once or twice it seemed like it ignored the push of one of the start switches. I too assumed maybe a bad switch and went to the other one. I did not notice abnormal beeping -...

Newbie PWC owner. Just bought one of the "new old stock" 2005 Seadoo 3D (base model). Advertised as "0 hrs" for a great price (maybe). Im handy with vehicles but know nothing about the Rotax 2 cycles (YET). (ebay service manuals are on the way). It has not been in the water yet. I have...