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    identifying my engine year

    So as I'm sure some of you know i have a custom and troublesome ordeal. My 400 xs engine isn't on a motorcycle so i jave no idea of year. So I'm gonna give as much detail as possible about what i have and you guys try n figure it out. we can make it a game lol. first off the numbers...
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    Gaskets or Silicone?

    Ive always found it cheaper to just use a high temp silicone instead of engine gaskets. they last and if you have to go back in its easy to just make a new gasket. but when i took my side covers i noticed that quite a bit of the gaskets stick into the casing like dividers or so. my very...
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    starter, clutch, or??

    engine is from 79-82 xs400 installed in my raptor. I noticed after I did all the wiring and got it running that the starter takes forever to actually turn thr moto. it just spins and spins and then slowly grab n turns the motor, which is wreaking havok ok my battery. so I decided to pull...
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    charging systemm from scratch

    Short story: The only wires i have for the charging system are the wires off motor to the factory plug and the wires coming from regulator to factory plug and the wires coming from regulator plug. i know blue is nuetral switch and yellow is oil. black and green also come from engine but where...
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    XS400 powered Yamaha Raptor

    New to the website, just like to say Hello and tell ya a little about my project. First of, my names Josh. I'm 23 and currently working on a project I came across, Code named: Zombie The chassis is a 2004 Yamaha Raptor 660R, but the engine is a whole other story:D I purchased it with a 400...
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