arm
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    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      Awesome will do! anything else i should be worried about and adjusting in the carbs? Like @tstidham mentioned the carbs should be able...
    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      yeah on second look it does look a bit off. thanks so much for the response guys, really appreciate it, couldn't have gotten this far...
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    • arm
      looking for mikuni bs34 rebuild kit, would you happen to have jets and such in good condition for sale?
    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      Hey guys, so i been loking around for parts for the BS34 carb and since I'm in Canada a lot of sites charge around $80 - $100 for a few...
    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      Yeah i think id opt for the manual petcock just for the peace of mind that I actually shut it off I watched a few videos on how to set...
    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      Any links to what manual petcock will fit on my bike? Is it a hard swap? what happens to the vacuum line on my bike then? Do I just...
    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      Oh wow, what do you suggest? Replace the petcock with a manual one or go ahead and look at the floats? The needles seemed fine to me...
    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      I think i found the cause, i went to go pull of the carbs and found more fuel in the boots, confused as to why there's more gas in the...
    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      I saw some ppl mention that a float could be stuck and tapping on the carb could help. I rlly don't wanna pull everything apart atm 🥲...
    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      yep so this happened 🥲 Drove the bike around last night, came home parked it in the garage and smelt a ton of fumes, and found this...
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    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      Wow thanks for the tip I didn't think about messing with that. And yes I'll keep a eye on the boots to make sure no liquids are...
    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      got it running! just needed to kick it a few times and then it started. The bike does feel better, more throttle response, I might even...
    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      new development, so i pulled off the air intakes since I felt gas on the frame and in the left rubber boot that connect the carb and the...
    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      It's about 26 degrees Celsius here so not to warm at the moment, I'm trying a combination of pulling the choke all the way out which if...
    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      maybe im not understanding the choke, when its pulled all the way out that means the choke is open right? so when I start the bike I...
    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      I tried it on prime and no luck, the starters sounding weak because of how much I've been using the battery so I got it on charge at the...
    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      yup, turns out i attached the bracket that goes ontop of the carb backwards so the sheath was facing the air filters rather than the...
    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      AHHH righttt, there's a part on the carb where the cable runs through, totally forgot about that. now that I know that, is there any...
    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      Thanks man! I got the carbs rebuilt and put in, it was a bit tricky but some of the tips I read here like using a bar to pry it were...
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    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      As it stands here what ive done, I followed this video in the disassembly until the carb is ready to be put back together. I pulled...
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    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      Here's a video of what the top of the screw looks like (link) I went to Home Depot and picked up a wrench for those golden bolts and...
    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      Here's a look at them opened up, I noticed that the carb on the left has a good bit of black deposit while the one on the right is...
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    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      any tips on how to set them? I noticed my bike tends to run really rich and the left carb spring/screw seems a bit more tight then the right
    • arm
      arm replied to the thread 1978 Yamaha XS400 full tune up.
      Finally got em out! it wasn't to hard but it was a nice experience getting comfortable with the bike and its internals. How's the look...
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    • arm
      arm replied to the thread 78 XS400 smoke and burning smell.
      UPDATE: I opened up the air filters and there wasn't any large deposits of oil or anything to concerning, I did notice that the plug on...
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    • arm
      Hey guys, it seems like everyday I ride the bike and come back with more questions and concerns then the day before XD so today I took...
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