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Compression test showed 100 psi on the left and 75 on the right. So I took it in my hands to tear the top end down. Set gas tank to PRI and remove (good to have a working petcock). Drained the float bowls and pulled the carbs. Removed ignition coils. Removed top end engine mounts. Then got into...

Just put it all back together, to note another dumb electrical bug, loose ground clips under the headlamp and mystery short to ground somewhere I have yet to trace. No big deal I can fix the turn signals later... A blown fuse actually caused my brake lights to stay full on and keep the horn from...

Sorry should have posted these sooner, but thought it would be nice to share. My bike is a 1978 SOHC so if anyone else has more to share post them here or at least the links. These were all scanned to PDF format and with scales on the x and y axis for refrence. Stock up on your corn flakes...

1978 xs400E in progress. Ok so after my rewiring the stator and field coil I found out after pressing it all back in the field coil has failed or my new wiring got pinched somewhere. So what the hell try again. I figured I can check my gasket and improve it along the way and see for anything...

so I have done much scouring of electrical forums problems and found good info to build confidence to tackle a stator and field coil re-wire, rebuild solenoid, new left side gasket and inspection of left side components. Common issues coming up for most being the battery, voltage regulator and...

I just watched my right side blinkers as they were working and started to go south then they wouldnt work nor the left side. I am making an obvious assumption I need new relays here. I have 2x signal cancel relays and im sure one of them will be useable ... but there is no way of knowing until I...

I have a 1978 xs 400 and the valve adjustment cap is stripped and has a crack affecting the seal. Does anyone have one of these valve adjustment caps/ cover bolts or a set that I may be able to purchase with or without o rings. I have paypal and it would be shipped to Ontario Canada L3Y-8M6...

My '78 E is ready to go after an entire year of rebuilding! I am a novice and this is my first bike however I have trolled these forums enough to know and be comfortable with most of what im doing. I figured it would be smooth sailing after wasting a night attempting to fill it with fuel for the...

Wanted to ask these questions before its too late in the game as my bike is going to be fired up soon after rebuilding the entire thing. Every reference and wiring diagram I have seen for my '78 refers to the ignition coil colours as Grey being Left side ignition coil and piston and Orange...

Happy Halloween. So I have decided to take my carbs apart and clean then and such also see what condition they are in... considering the rest of the bike got the same treatment. They were not difficult to take apart and i was lucky to find all the pieces. The clutch pin spring and ball bearing...

I can buy some of these outright and am a little busy to source them myself and mostly too cheap to want to pay retail. I have a few things to offer up because I think bartering is always better but I can also purchase. Buyer is responsible for shipping (from Toronto, Canada), and paypal works...

Just wanted to stop trolling and start report on my progress so I can add to the galaxy of xs400 info here and the legion of people dedicated to helping others get their bike running too. Maybe cheer me on, maybe scout for some anwsers here, or maybe help me anwser some questions I have...