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I have my pretty much complete 77 XS400 that I need to sell or part out as its taking up room in the garage and I simply will never get to working on it. I have the title from the previous owner that was signed over to me as I never registered it in my name. It was running in early 2016 and was...

So...after 2 moves in the last 2 years and ever increasing family and financial strain, I realize I am probably never getting to rebuild the XS. The bike ran in 2016 and was good cosmetically (relatively fresh seat and painted tins/seat, electric starter) then I started tinkering, got rid of...

Hello all, This site has been a great help over the last year of having my 77 XS400D. Recently, it seems the butchered wiring harness has caused the bike to not start, not have lights, have the horn constantly beep, etc. I have some skills (I used to paint cars and I do my own gunsmithing and...

So, its been a while since I had a chance to ride my 78 XS400. I had completely rebuilt the carbs earlier this year, put them on, and had the bike running ok and even test rode it. But....the floats were slightly off and I was getting fuel in the crankcase. I quickly took the carbs off, drained...

Hey all, trying to get my bike on the road to register it (have to ride it to DMV here in FL to get tag/plate). The original throttle cable was damaged/separated where it met the "90 degree metal sleeve" near the right handlebar controls, so no matter how I adjusted it, I couldn't get it right...

I have finally gotten my bike to the point where it was starting, running, and could move a few inches in gear. Definitely need to tune the carbs a bit and safety check everything in the upcoming weeks.... ... but today I started it after an oil change and heard a funny noise (like the...

I purchased the JBM diaphragms for my 77 and they went on perfectly and don't spin. However, the JBM website and several threads on this forum say the hole at the bottom of the slide needs to face the engine/butterflies. However, BOTH of my original factory diaphragms were aligned (using the...

I took measurements and I think the JBM M-73 diaphragms should fit my carb, though it seems all the old posts mentioning this were people with 80s XS models and the JBM site mentions 80 and newer. I am trying to button up my cleaned/rebuilt carbs and it's just seems they shrunk too much to get...

So after messing around on here and picking some brains, I finally picked up an XS400 in good condition (some disassembly) at 9am today with the help of a strong friend who has a pickup. . After a full day with my buddy, it's together but not running as the carb is likely completely gunked...

Hello all, Ready to pull the trigger on an Xs400 that is not complete (lots of redone and new parts), but the engine is original and hasn't run in a while and when it didn't leaked and has physical (laydown) damage. Since I'm going to have some time putting the bike together I figured I could...

Looking to pick up a 1977 XS400 this weekend that starts but won't hold idle. I would think a good carb cleaning and rebuild would remedy that... Actually where can I find a rebuild kit or what carbs can replace a 77 carburetor? The bike appears to be in very good shape physically with an...