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Dude, I have the exact same bike, and I must say yours looks like itś in awesome condition. I am restoring my 79 and agree with switching to the Pamco electronic ignition and ditching the points. I used to have an awful time starting mine. Now with the Pamco ignition, it starts right up. It...

Through various media and XS forums, I´ve noticed that a common problem when working on carbs is when the tip breaks off of the float goal posts when trying to remove or install the pin. I don´t remember if I made this repair myself or if it was my bike shop, but it worked well, and has lasted a...

Just a quick update... After watching a few you tube ¨how to¨ videos (professional ones) on the bs34 carb, most common carb problems, and on carb cleaning, I was ready to dig deeper with my new found knowledge. I removed the pilot jet from under the cap screw, and the needle jet tube from under...

The needle valves are the screw in type, and the basic carb rebuild kit I used from mikes came with the float needle valve and seat and the brass washer for the main jet, aluminumn washer for the other, and gasket. I´m debating if I should get the full rebuild kit off ebay that includes alot...

Thank you for the updates, and I'm glad you found the problem. I'm currently having the exact problem on the 79 xs400 that I'm restoring. I've converted to electronic ignition and that's not the problem as there is good spark in both cylinders. So you are talking about the o-rings under the main...

Thanks for the info on the email spectra. I had it running for a while last year, but didn´t get that far yet. I just figured it´s best to ditch the points. The coils probably still work, just not sure if they degrade over time. When you say you have the original on yours, you mean electronic...

Hay Pete, you still out there? Your email Pete@xs400ignition.com didn´t work. I started restoring a 79 XS400. This should work on mine right? I guess the XS400E-HD is the way to go for this. Yes? What about the stock coils that are almost 40 years old? Probably should be replaced too I guess. Do...

Wow. Nice pipe ! Is that aftermarket, and if so where did you find them ? Can you recommend a good source for resto parts? Thanks for the info. Would love to see pix of your 79 resto. I did get mine running. I needed to see if it would run before proceeding with the rest. Thanks.

Does anyone know the legnth of the stock exhaust on a 79 XS400F ? I am another fan of peace and quiet and assume that replacing to a full leghth will be quiter than a shorty or mid leghth pipe. I had replaced them some time ago with universal mid size megaphones from JC Whitney but they are...

Wow, that's alot of information in there. All helpful, many thanks. Well I started checking the electrical system and figure it's a good time to upgrade the fuse block. I had replaced it some time ago but I went with a glass fuse type similar to OEM. Any info on where to get the other (spade)...

Check it again after a test ride to be sure. It will probably be ok after they get seated after a test ride.

Hi all, a newbee here, as I just joined. Found this site while Googling various stuff on my XS400 project. I actually bought the bike brand new in 1979 from my local Yamaha dealer. I had a great time with it, then in the late 80's I bought a 82 Harley Sportster and that became my primary ride...