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    Air-fuel mixture screws - missing?

    Here have been my learnings. I have basically the same bike, same year. - There is a fuel pickup built into the float bowl side wall. If the bike has sat for more than like 6 weeks, it will undoubtedly be plugged. The only thing I could get to clear this was sitting there with the smallest...
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    What did you do with your XS today?

    I took mom's special out to Mission BC
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    Xs400 tank emblem

    Hello, on a ride one of my tank emblems fell off. And the other one had a crack that was probably going to lead to it falling off. So I 3d modeled a new one that will fit the stock mounting screws. I did a terrible paint job on it. But it looks good from couple feet away. Enjoy...
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    Speedometer has large delay, but is accurate

    Hello! I am here mostly posting the solution to my speedo problem. My speedometer was working. But very, very slowly. If I maintained speed, the speedometer would after like a minute, finally reach the speed I was going (I was comparing against gps on my phone). I also noticed that the speed...
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    Couple of (carb related?) questions

    Thanks for the replies gents Just would like a few of the other questions answered. What is the top speed you guys can get your xs400's up to? Can you run your bikes on each cylinder?
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    Couple of (carb related?) questions

    So I've got a hand me down 1980 xs400 special. I've got it running, and with I'm sure everyone else here I've had my share of fun tweaking the carbs. So I've got a couple questions that I would like to know if anyone can answer. Roughly how far should I be able to crank the throttle and still...
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    Overflowing Carbs/Faulty petcock?

    I'm good on all those things you listed. I have another question that isn't related to the petcock or carb. I want to check the timing on the engine. However when I opened the crankcase. It leaked all the motor oil out of a hole I'm assuming was to leak oil? But how am I supposed to do a...
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    Overflowing Carbs/Faulty petcock?

    Well the carbs didn't leak, however its not idling right. Handily enough, a guy I met a few nights ago while working on the bike, happens to be a mechanic. He was walking by today, and I was going to kick him over the bike to show him how the bike runs. While doing so, it backfired an lit the...
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    Overflowing Carbs/Faulty petcock?

    So I have done my homework, this is most definitely a problem with the floats in the carbs. Thought I'd just come on here and pop a question because I've been lurking. The bike is a 1980 400 Special the SOHC variety. It is my mothers, I'm getting it running again. Did an oil change, new...
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