Trent shot a short video describing that in more detail here on his YouTube channel. If you’ve been having charging system problems and the rotor is crashing into the alternator housing, it’s probably a crank problem. Even with a basic 750 big bore kit, the crank takes a beating and will start to separate and claw its way out through the cases looking for freedom. I’ve seen plenty of stock cranks come through my shop that were very close to failing when pushed hard. If you are going with a basic rebuild with a stock bore, skip all the welding. I build about two or three of these cranks a week, and when going for high horsepower or even if just planning a Big Bore, you should build a proper crank, or have someone do it for you. I’m gonna show you a little bit of what I do to re-phase a crankshaft. It sucks to lose an entire engine due to a $40 bearing going bad. We’ve covered a lot of parts that could cause a potential engine failure if not checked. For most of you, after you tear down your crankshaft it will look something like this: For some companion information on re-phasing, visit /2011/01/re-phased-goodness.html.įirst, get a decently clean work surface and toss down a few shop rags if you have to. Now that we’ve got that out of the way, how can you tell if your crank is any good? Well, I’ve got a few simple steps to check over, and I’m going to show you the process of re-phasing the XS650 crankshaft while we’re at it.
#Xs650 girder front end how to#
I’m not going to show you how to tear down your engine, buy a Clymers manual for that because you are building a bike for *** sakes, and it can’t hurt to maybe flip through a few pages instead of hitting Google every time you need something. Just like old Triumphs, all the power and reliability in an XS650 engine starts with the crank, and also like Triumphs, the XS650 crank and bottom end are usually the most neglected part of a build. I know Jappers have that “live forever with no maintenance” reputation, but when you are dealing with bikes that have been dragged out of sheds, swamps, barns and fields, you are bound to have some problems. Let’s face it, the newest XS650 on the road is 27 years old now, and if you got an early model XS, you are pushing 40 years. No, I’m not talking about your Sportster tank or that TC Bros tail and apes, those are merely makeup on what might be a super hot chick under that emo mess, but, without getting down and dirty with your engine, looking cool ain’t doing you much good. Well gang, it’s time to look into the soul of your XS650.
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