head

Hey there, just joined the forum. I bought a 78 400E I believe completely apart recently . Made it the winter project while the restaurant I run is closed :(. Finally got to cleaning and installing the head. Valve springs were hammered out and then cleaned but now that it comes to reinstall I'm...

Hey guys, I've done some digging and couldn't find anything that addressed this so please forgive me if it has and i missed it: Im tearing down my 78 xs400 motor and got the timing chain, ohc, valve cover, and top head removed successfully, but I'm struggling to get the bottom head section...

I've done some searching but I can't seem to find what I want to know. I have a 77 XS250 and rode it in the dark for the first time last night. The headlight was underwhelming to say the least so I'd like to replace it. I thought I could pop out the globe and pop in a H4 but it looks like the...

I was going to sell the top end of my broken engine. I see that the rocker cover and head are bored for the cam bearings and wonder if I should keep them together? I see them separated on ebay, but wonder if the machine work out of Yamaha could have bee so good as to have all of these fit...