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Yes, I have the originals. They are the Mikuni KOGYO I believe. I just ordered a rebuild kit last night for them and am planning on cleaning them up. The carbs that are currently on it are the SWR 32mm ones from MikesXS. I set the valve clearance last night. The exhaust valves needed turned out...

Hello everyone. I have read through a couple of the other threads about the XS400 not starting, but I can't seems to find anything that helps my situation. The PO said that it used to run fine until the carbs starting leaking. He put a new set of carbs on it and tried making it into a bobber and...

Hello everyone, I just purchased a project Yamaha XS400 a couple of weeks ago and am going to turn it into a cafe racer. While going through it to get it started, I needed to replace the plug caps and figured I would replace the plugs while I was around that area. I ordered the NGK plugs off of...