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Hello, I'm about to start the rebuild of another engine (DOHC) and I'm worried about the crankshaft bearings. Yamaha doesn't produce them anymore. Does anyone knows where to find an aftermarket alternative? I haven't open the engine yet so I don't know sizes and specs....I'm just doing a...

Hello everybody... the bike: XS 400 DOHC, pods, stock headers with custom exhausts. The bike doesn't ride too badly but the spark plugs are totally white. The needle is at the third notch (middle position) and the main jet is a HUGE 160. The spring has been shortened to make it oppose less...

Has anybody tried to degree the original camshafts? I just finished to rebuild my DOHC engine and I have a spare one just for experiments...any experience about it? cheers!

Hi everyone, I'm looking for a set of DOHC cylinders...there are many on ebay but I'd like be sure they are still in original size and with no dents on the inside. I already have pistons and new rings and don't want to wast them buying an oversized set. Cheers!

Hi, I'm rebuilding the engine of my 12E and I found, with my disappointment, that a ring was broken. Luckily it didn't cause any damage but I need to replace it, of course. It seems like there are none available all around the world...I could find some for the SOHC, the bore is the same but...

Hi everybody, I'm Luca from Rome, Italy. I'm building a cafe racer based on a 12E. Well, there's not much left of the original bike...it took me forever to get where I'm now but I'm finally starting to see the light at the end of the tunnel. so...well...nice too "meet" you all! Cheers, Luca