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    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      Just to make sure i understand correctly This is the cam? and yes i think it is off since at LT its at the bottom rather then the top...
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    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      Thanks for the tip! Yes I been setting it to LT whenever I do any work but I'll make sure that it's on its compression stroke using your...
    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      In this video at the 49 minute mark I noticed how he can rotate the cam gear. Im guessing I need to take off the upper motor mount and...
    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      Hey all! I'm finally done my exams and back to wrenching at this bike. I wanted to reinstall the points based system all the way from...
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    • arm
      arm replied to the thread New Member from Canada.
      Hopefully the only thing left is making sure that both coils are sparking instead of only 1. Because of this the bikes at 40-50% of its...
    • arm
      arm replied to the thread New Member from Canada.
      60 a month???? my god i dont think I've ever seen such cheap insurance, it probably cost more to insure a lawnmower here in Ontario...
    • arm
      arm replied to the thread New Member from Canada.
      Oh man, i gotta visit that side of Canada its breathtaking man, im out here in Ontario. Yeah the XS is nice but mine is limping on one...
    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      Update: So the previous owner routed the wires from the ignition system to some wire that then went into the coil, I thought that was...
    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      Update on the XS, I found this amazing video for exactly the same points-based system by Brick House Builds. I been keeping up with his...
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    • arm
      arm replied to the thread New Member from Canada.
      Another Canadian :cheers:. that bike is a beauty! Are those roads in BC? so scenic
    • arm
      arm replied to the thread Float height and other adjustments.
      ah, interesting, In one of my posts (that's insanely long at this point) a user suggested 26mm and so far this forum has been correct...
    • arm
      arm replied to the thread Float height and other adjustments.
      Hi yeah, I put in the new floats and adjusted the tang to be 26mm from the top of the float to area where the gasket sits. I found a...
    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      I think i opened up the right part of the bike, here's a video on it Link It looks to be clean and new, nothing wrong with any of the...
    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      Nah that coil pack was for sure done, had burn marks on the under side of it and was spitting out this wax like material, not sure if it...
    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      The new coil came in but i think there is a bigger issue at hand So here's how the bike was originally Highlighted in blue is the old...
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    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      Ah i see, what is that part called and would you happen to know where I can pickup a new one for the left side since that seems to be...
    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      New discovery! I pulled the spark plug from the left cylinder of the bike and put it against the engine and no spark, I bought some new...
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    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      I think this bike is the gift that keeps giving, one of the two ehaust pipes is cold when I ran the bike today :wtf: here's a quick...
    • arm
      arm replied to the thread Project: Simple Gear Indicator.
      Wow, thats some real engineering! If u ever make a write up I think ill add it to my bike too since I always seem to forget which gear...
    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      Thank you! Amazingly explained! i tried reading up on it but kept confusing things, will definitely give this a try when I get around to...
    • arm
      arm replied to the thread Project: Simple Gear Indicator.
      Im a Computer Science student my self and cant belive I didn't think of this myself! great use of a small microcontroller. If you don't...
    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      I got it running! For the stripped pilot jet, I read up on the forum and saw someone mention banging a T7 screwdriver into the jet and...
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