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I know, I can just search it up but I've been looking all over for the answer but to no avail. Either nobody has had the same question, or its ignorance on my part. For an 81 XS400

Mine is in really rough shape, has holes rusted through in multiple spots. If you have a stock system and are able to ship to AB, Canada please contact me with a price...

Fairly certain I read somewhere in this forum that if you get new air filter or exhaust then you have to put different jets in your carb. How exactly do I know what jets to put in?

I switched over to LED turn signals (also mounted them in the stock turn signal housing). After installing the diodes to stop all 4 signals flashing when I switch them on, the lights for the turn signals, neutral and oil pressure stopped working. I didn't mess with any of the wiring other than...

I want to find somewhere to order parts from that wont charge me like crazy to ship to Canada. I need new exhaust headers because mine are not super great, and I also need new mufflers and mounting bolts for them. Id prefer something that is identical to stock because im not too keen on changing...

I was practicing on my 81 xs400 (first bike) and out of nowhere it began to idle really well, and doesnt bog down when i initially give it throttle (been trying to fix this, but im kinda inexperienced). At first i was like 'cool!' But then i looked behind me and there was a decent sized cloud of...

I purchased a new flasher and some led turn signals and jerry rigged them into the stock housings. When I try to signal it always signals with all 4 instead of the 2 on their respective sides. How am I supposed to fix this? I read that you can fix it using diodes but have no clue how to wire it...

As the title suggests, my turn signals don't blink consistently. While the bike is running I activate the turn signal andit blinks fine for a few seconds then goes solid for a while, and out of nowhere will blink again and just repeat the process over and over. Anyone know a potential remedy to...

Not sure where I can find the flasher relay on my 81 XS400C. The turn signals don't work properly, even when running. They will flash a few times then just stay on until I turn them off. Looking for the flasher relay to see what I can do, just haven't got a clue where to look. Any help greatly...

I recently got a 1981 XS400 that I bought not running and was fairly confident I could get it going. Unfortunately, I can't figure this out. I cleaned the carb out, checked spark as well as compression. I know that none of those are an issue right now, but I'm not sure what the issue could be...