Recent content by WilliamJ

Thanks for the replies! Update on the bike: - Cam chain is still set correctly (used the pin hole on the camshaft under timing advance unit to confirm it is at 12 o clock and 6 o clock at TDC for each cylinder. -Changed the oil, there was less than a half quart in there but it was pretty clean...

Hello, Last night I went for a ride and on my way home the cam chain tensioner fell out (didn’t realize until this morning when I found a pool of oil under the bike and the tensioner siting under the carb. I believe it happened in the last 30 min of my ride since I didn’t see any oil or...

Thanks everyone!!! I’ll check all the connections and if everything checks out I’ll be looking for a new battery. I also plan on checking the voltage of the battery to see if there is any indication of a bad battery there. I Thanks again!!

Hello Everyone, I have a 1977 XS650D that starts fine with kick start but the electric start seams tired/does not get it started. Whenever I press the starter button it cranks over slowly and only ever starts if the engine is already hot and I am lucky. My bike doesn't have a decompression...

I just finished rebuilding the top end of my 1977 Xs650d (Had a holed piston on left side). it starts, right side is dialed in, but left side timing is either at the fire mark or closer to the top dead center Mark (see picture) going back and forth. Any idea what would cause this? It seams...

Thanks for all the replies!!! I got the engine taken apart and it was a hole in the left piston. The valves and pistons are in terrible shape (see pictures). Do you have any idea how this type of damage is caused? I just bought this bike a couple weeks ago so I don’t have the full history of...

Hello, This past weekend my 1977 XS650D broke down when I was on a ride where I lost power(couldnt go past 30mph in 5th gear) and oil started coming through the left exhaust. I anticipate this being caused by Piston Rings, Exhaust Valve issues, or a damaged Piston. To determine which and...