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Thanks, Capt! I'll give this a try. Just to be sure, in your Step No. 1, is the kill switch still off?

Following up on earlier threads, I just picked up my '81 XS400H from the shop (reputable, decades of experience with Japanese bikes), where they checked compression, replaced the plugs, set the valve clearance, cleaned and synched the carbs, etc. etc. Brought the bike home, rode like a dream for...

Thanks, Capt! I’ll check all of the above.

Hey all, got the bike started again for the first time in a couple years and there is a higher pitched knocking/clacking sound. Is this something to be concerned about? Any suggestions as to the cause? Couldn't attach the video so included a YouTube link: XS400 Start Up Before it sat, the...

Hello everyone! I haven't posted in a while as I got busy with work but now trying to get back to the project. My '81 XS400 was running great after a a carb rebuild, but then it sat for about 7 months. When I started it up again a bunch of white smoke was kicking out of the exhaust. I let it run...

Update: multiple drill bits and screws later and I was finally able to get the plugs out. The settings were very strange though...#1 was 1.5 and #2 was 2.6. The screws don't seem to be loose. Anything I should be double checking?

Greetings all, I’ve been unsuccessful in the drilling method of removing the factory idle mix plugs despite reading all the forum commentary and miscellaneous guides out there. On the #1 carb it actually sank a bit deeper, and on the #2 the screw to pull it out just won’t bite strongly enough...

You know, I came here for help. Take your insecurity elsewhere.

Wrong. My question is if the particular wheel would work. A helpful response is “Yes, if A, B, and C.” Or “No, unless you also had A, B, and C.” But nice try.

That's unhelpful. I have XS400 forks from a disc brake model, as well as a disc, brake lines, and a master cylinder. I am looking for a wheel and information about a wheel only, hence asking if this particular wheel shares the same spindle diameter and thus would be an easy fit. Plenty of...

I searched, couldn't find anything... would the front wheel from a '75 CB360 swap onto the 81 XS400 for a disc conversion??? It looks like the CB360 has a 15mm spindle same as the 400. Anyone have any insight? Thanks in advance!

Hi there, if this is an SH, the forks are set up for discs, right? I'll take the forks if they're still available?

Do you have the front end?

Checked everything, spliced together, installed the new control and as soon as I reconnected the battery it was dead. Only throwing ~3V. Charged all night, only came up to ~9. I thought the battery was brand new when I picked up the bike a couple months ago. If I have to get a new one...

Greetings all, Ordered the RH Handlebar switch with a part that said it was compatible but in my OEM housing both Killswitch wires are R/W. On the replacement the (internal) right-side Killswitch wire is brown. Everything else is the same inside. The Replacement Female plug (white) is...

Make sense, I ordered a whole new assembly the other day so I will wait until that arrives to mess with it, report back. Thank you much

New symptom: Turned the bike in this morning to run it for a bit as I do a couple times per week and the following happened... 1. Turn key to on 2. Turn engine switch to On 3. Bike tries to start on its own with kick or button (which is missing) being pressed I don’t know enough about...

Hmm, I’ll look into it. Thanks, all!

Definitely coming from inside. The noise didnt happen under after I switched the engine off and it is like a delayed "winding down" that only lasts a second or so after I cut the engine. The button popped out, so the spring behind it is there, but the part you would push to e-start is missing.

What other information would be helpful? I’m glad to provide whatever I can to assist in diagnosis lol