idle

Hi dudesters, so im thinking about getting this old bike running, and got around to doing the carbs after a short span of inactivity (the thing has been dismantled for 7 years give or take). So to my surprise i found both idle jets were jammed in too far, subsecuently got stuck and the tips of...

Hello, In the last two short trips I've had a problem with missfire on my right cylinder. The bike starts but has problems for about 15 secs. I can't figure out is it better with full choke or half on hot weather. Anyways, i drive it in half choke for some time so it warms up nicely. After it is...

So this has been a year and a half worth of trying to figure out what is wrong with my bike. I bought this fully running about 3 years ago I think, and rode it around with no problems for about a year and a half. Here's my problem now: My idle will bounce around a bit and "searches." After...

Thanks to all who helped me on my previous thread! (Reassembling the engine - check it out here http://www.xs400.com/threads/kick-start-locked-up.16804/). Now that I've got the new crankshaft and rods in and the whole engine reassembled I'm trying to breathe life back into my 1980 XS400...

I've been reading this forum for about a month now. I've tried just about everything on this site so far but my bike still won't work. I have a 1979 xs400e (I think). All original everything. It was given to me after sitting for almost a year in the sun. I had ridden it and it ran great...

So my 1981 XS400SH I have had 20 years (old reliable), got a crack in the manifold boot, ran lean and hot, melted a plug, and broke a valve. Now after a head rebuild and new valves and guides (and a new tank), and several valve adjustments, it idles great and roars when I get up to speed, but...

Hey guys, here's one for ya: My bike quit running and I traced the issue to a bad TCI box. (I've gone through 3 of them in the last year!!!) I found a used one on ebay, and plugged it in, and it started. I gave it throttle, and it died. Restarted it, let it idle, and tried giving it throttle...

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Hi there. I've just joined the forum after picking up a new project, an 1980 XS400 Special, and this is my first post. The bike is a literal barn find and by the looks of it has likely seen a decade of Canadian winters sitting outside, but seems in pretty good shape despite that, and has...

Hi guys! First, I wanna say that I love this forum. I have my first bike and you guys helped me a lot through all the threads. Aright I have a XS400 RL 84 (Seca). It works well and I'm turning it in something nice! I empty all the old oil, put new in, did 100 km, changed the filter and...

So I've got a stock 1981 XS400, stock carbs (running cylinder air filters). My bike idles well once its warmed up, but it behaves very strangely sometimes. Once idling well, if I give it gas, the idle jumps up to about 3-4000RPM and stays there, and eventually returns after a few seconds. I...

Hey, I finally got around to starting up the bike today. She starts perfect on the first turn off the starter with no choke (new plugs and filters) but after about 5 minutes at idle she decided she wanted to rev to 3k and 4k if I don't turn her off, again choke or no choke she does this even...

I'm a new owner of an 81 xs400 special II and quite happy about it myself. It runs great but I have a few questions and concerns I've been reading the forums and I'd like to thank all those who respond to people I've learned quite a bit already but it's time for me to ask some questions...