Chris how come you didn't contact me about this? I'm not afraid to say I built this motor. Just because I built the motor doesn't guarantee that it won't spin a bearing which is the most common thing to happen. That's the most common thing to happen no matter who builds it, especially a weld up cross drilled crank that's welded up to the max. I don't remember whether you knew the history of your core or not, but that matters as well. Its is a possibility that a crank can fail its just a matter of fact. Nobody who ever spins a bearing ever thinks its could be some kind of crank issue. What !!! it can't ever be a crank issue because its a crank made of metal and that's only one of the weakest links of the motor so how can that fail? so it must be the builders fault. I'm not saying your blaming me just stating facts. If a builder can promise you you'll never spin a bearing then I want them to build all of my engines!! Or they built 10 engines vs several thousand it seems for me that I've done. The mains were at .0015 and rods at .002-.0024, its impossible to make them all exactly the same. Side clear was at .007, plenty of PTH.. I can't control any other variables, tune, riding techniques, gas used,oil,etc. The one thing that I can promise is I build every engine the best that I can as if it were mine, and if it was mine and it was a stroker I never would use a weld up crank. I would use a billet crank like I recommended to Chris as I just put in my B-KING! The thing is people say they can't afford a billet, well you can't afford not to. Its only 1500$ more then a weld up and if you can't afford that you can't afford to build the engine in the first place. I can say out of EVERY billet Marine stroker engine that I've built NONE have spun a bearing. So now look how much you have to spend!!! more then 1500$. Chris also if you losing MPH like you were or the bike acts totally different then what your use to, you must stop riding or racing it, because if you start having a bearing issue and you continue riding or WOT your engine your rod has no choice except to take a breather through your cases, its just going to happen. You must pay strict attention to your engine for abnormal noises. Now of coarse I feel bad about the situation as I do to anyone's motor whether I built it or Moses built it. I've asked a few other builders about their build success with Marine billets and the both said they never had bearing issues. When you get a chance look up the disadvantages on cross-drilled crankshafts on Google!!! I posted it a little while back on my FB page. You know that that's a possible cause too!! and nobody can say it's not.
You say you never want it to happen again right? Well the only way that is going to happen is to BUY a MARINE billet crank, and there not cross drilled. This is not just steered towards you, this is to anyone who's thinking about weld up strokers! and yes some may last and most won't. Please call me on this tomorrow and sorry for your loss.
