Ok here's the story. Just after the warranty expired on my Speedster the port engine died. Seized the mag piston. Took it to a shop that a friend used for years that is a Doo dealer and they build some wicked fast lake racer snowmobiles. Pay the gent $1,300 and all is good. Use the boat 5-6 times same thing. Call my friend and eventually(a year later) get some of my cash back. In comes a local engine builder, let's say one of the three names that is always thrown around on here. You can figure it out by where I live. Take the boat over, it's gonna be 2K for an engine, supposedly I needed a new crank, cases and top end rebuild. OK great, call me when it's done. A few weeks pass and I pick it up, alas no engine serial plate--I'M PISSED but let it go. Again 5-6 times same result, fixed under a no fault warranty. And yet again 5-6 times same result. At the time work was busy and commissions were good so it was easier for me to pay to have the work done. Well after the third strike I call in the big guns--ME, I can F up just like the last two guys, right? So I tear it down, hey guess what, my original cases, now I'm fired up. Oh I forgot to mention it's my original crank too. Bite my lip keep my hole shut and take on the chin like a man. I order a reman BRP crank from PPG, send them my C/B shaft to rebuild my cylinders to bore with new OEM oversize pistons. There was another $1,542.66. Do the math I'm an ass-load into one engine already! Get all the parts sit in my parents shore house and put it together on a card table in the living room, being the only son has it perks. I had read the manual cover to cover multiple times and made the block off plates so I could pressure test the engine when complete. She wouldn't hold air for a minute, well I finally found my leak on the MAG cylinder. I guess the previous two guys just never checked it, both were great guys but you don't skip on that test, an air leak is the kiss of death on any two stroke. Needless to say since June of 08' that engine has never failed or hiccuped once. Sorry for the long winded response, this is the sole reason I will not endorse any engine rebuilder, I don't want to hear excuses, placed blame or other bullshit my time is more important. I know they are all good places, but YOU get your ass burned twice and let me know what it's like. I can mess it up just like the best and I can only point the blame at one guy when it fails. I know this is not the scenario for everyone. So long story short, that is not an SBT in my boat and I would love to have my serial plate back, but that is not going to happen. I'm not pissed anymore about the previous builders I just felt duped after getting charged so much, now I know exactly what I put into it--you can see what I have done with my XP build, same with my Speedster engine. The other engine in the Speedster was done the following year, but that has the original crank and pistons. It had a leaky base gasket that drove me nuts. So I pulled it down, detailed the engine re-ringed it and put it back in. If you guys were my neighbors I'd invite you over to my shop and I'd help you build your own engine. No I'm not getting into the engine building business either.