1978 xs400e

Hey guys, it seems like everyday I ride the bike and come back with more questions and concerns then the day before XD so today I took my bike out on a short ride (maybe 10 minutes) and came back to park it in the garage when I noticed a weird smell. I had polished the crank case and exhaust...

Hey guys, im looking to change the oil on my bike and wanted to know where I can find the oil filter and possibly the O rings. Also if anyone has a picture of where the oil filter screen is and what should be used to clean it. as a side question, I was reading the XS400 manuals and was curious...

Hi guys, I noticed my 78 XS400 is painfully unresponsive to the throttle and struggles to push any speed beyond 60km/h. My buddy who drove the bike back for me when I bought it told me that it for sure needs a carb clean. I want to pull the carb and see how much some shops will charge since...

Hi all! Ive been lingering this forum for a while as I planned to, and now have bought my 1978 Yamaha XS400! I belive its the E model? It looks great, looks like the previous owner had some work done to it and its pretty close to looking like a cafe racer which is my goal. There's a few...

I recently picked up a 78 xs400 barn find For 300$. It has 250 original Miles on it but its been sitting since 1991, overall the bike is in fantastic shape, a mouse chewed on the seat a little. Little rust on the pipes and the tires are toast... the previous owner drained all the gas even the...

I have 1978 XS400. The front brake caliper was rusted stuck. I was able to free it up, rebuild and replace the piston. It still leaks. I am looking for another, but am interested in after market ideas. Scott

Hey all, ive got a 1978 xs400 that has power to all lights, horn, high and lowbeam, no blown fuses. I removed the dash, aswell as removed the starter solenoid and deleted the starter motor. I took the entire bike down to the frame and removed the harness to paint and weld a hoop in. When i put...