xs400

I have a 1981 xs400 and had gotten it running after replacing the wiring harness. After riding for about 3 hours it decided to just up and die. Tried kick starting it but there is no spark, and the starter solenoid does not click when pushing the button. I tested the solenoid and it does work...

Hello. Joined the forum to help out a friend who asked for my help with his 1979 XS400. 1. The bike sat outside for 2 years and even if you supply 12 volts, none of the lights, gauge cluster, or even the starter works. The ignition cylinder is getting 12v and the switch does switch on 12v after...

Bike does not run Only way it did 5 years ago but only with a couple of sprays of carb start and it would leak gas like no tomorrow I’m trying to get it back in order any tips help

First off thank you for clicking on my post to see if you can help, I really appreciate it. REALLY. So, the bike has a misfire on the left cylinder when rpms are between 1k to 2k. I have ruled out the following; Spark Plugs, Ignition Coils, Sparkplug Boots. What would you check next in...

Hey All, Have read many posts on here about wiring in a Tacho but this is my first time posting on here. Building a 82 XS400 for a friend & have finished everything except the Tacho. Converting to a Electronic Tacho bought on ebay. I have tried 2 of the same tacho wiring it to the Coil -...

Hi all, I've been fixing an old xs400 (1978 xs400f) I got a while back and finally have it registered and warranted (NZ) however I've had a constant issue that I just can't seem to fix. The bike runs well and has good power, but the revs will hang when you touch the throttle (not always) once...

Does anyone know of a reputable shop near the Bradford/Newmarket (Ontario) area? I need a new starter, etc. but don't know of any shops that work on older bikes. Thanks, Rob

Hey Bike Lovers, I'm new to the Forum and thought I'd start off by sharing my '82 Maxim XS400J Custom Cafe Racer Some details of the build: 82 Yamaha Maxim XS400J Custom chopped frame Cognito Moto Triple Tree 2012 YZF R6 Front Fork Conversion Ducati Sport Classic 1000 monoposto rear shock...

Hi guys, I never post anything but this forum helped me a lot to build my bike! I am still fighting with the "perfect" jet-configuration for the carbs, but the bike runs quite nice. There is a video on Youtube Cheers :)

Hello everyone I got a hell of a deal on a 82 xs400 heritage special for 200$! It runs everything seems to work I just started tearing it down to build it but unfortunately I know absolutely nothing about this bike I have no manual or diagrams I am hoping all of you fine people could help me out...

Heylo. The skinny: I built a cafe racer, eitrd from scratch, burnt out two batteries. I have a combo reg/rec purchased from Ricks. My bike is a 1981 xs400 heritage special. My R.R has 3 white wires, which I ran to the white wires on the R.R, 1 green to the magnet? A brown wire that...

i recently picked up an 82 xs400 that hadn’t been run in over a year. I got it running, got rid of the bad gas, and cleaned the carb. Even after cleaning the carb, the left side carb is still flooding causing it to hesitate and leak gas out of the air intake. Any suggestion?

Hello all! I'm looking for a new kick start. Broke the clamp that the lever fit onto. Found one that fits an xs500, wondering if that will be compatible on my 77 400 model. The description lists model fitments, which doesn't include xs400, but thought somebody here may know if it would be...

Hi Everyone, I'm new to this site (actually to the whole "forum" thing entirely!) but I've been having trouble with my bike and would gladly take all the help I can get! So a little history: In a previous buy I got two yamaha xs400's (1977 and 1978 I think). The 77 had a title so I used that...

Hi, Looking for the squarer version of the fuel tank to finish my project. Let me know if you have anything. Thanks Steve

After having many customers asking me about these parts, i finally have them all available to sell. My direct email address will get you the quickest response. We are located in Payson Utah USA and will ship anywhere in the world. junkboy64@gmail.com All parts are made in Japan out of modern...

Hi all, Just bought a used xs400. not sure what year or model, the reg papers just say 1980 xs400 but I'm not so sure... It's got wire wheels and drum brakes with an electric starter. haven't read up on that combo much but I'm guessing its an XS400H based on wiring diagrams. I'll upload pics...

haha finally found the time and muscle to pull this bastard out of its cage! I pulled it from the right side all by myself and damn I nearly broke my back putting it up on the bench. Thing is probably like 200 pounds or something.

Good day all I am urgently looking for a Bs34 carburetor for my xs400 special I think it's 1980-81 She is currently standing stripped down,and waiting on me to find a new carburetor on witch I can not find .please let me know if anyone has anything.

I recently bought a 1981 xs400. Rode it 2hrs home but it died a few times on the way. I think it was running on one cylinder. I was able to get to 80mph but then I could only hear engine sounds on the left side and my speed dropped to 45-50 then like 35 and I couldn’t go any faster. It backfires...