The '75 XS engine right after coming out of the frame...
...and ready to go back in.
This engine ran good when I got it, and only 8900 miles, but had the failing front cam chain guide. Fixing the front cam chain guide means the head comes off, so a good time for top end rebuild. The engine was in good shape, and I ended up really good budget-wise. I lapped the valves and honed the cylinders myself, so free labor. Here is the complete parts and price list, all of which I bought from MikesXS.
Athena premium gasket set------------65.00
cam chain DID 219FTssx106---------49.50
cam chain tensioner arm---------------65.00
front cam chain guide------------------32.00
piston rings standard-----(2x32.00)--64.00
piston pin clips----------------------------3.00
clutch spring allen bolt kit--------------33.00
brass head washers--------(4x2.00)----8.00
top end fastener set----------------------49.50
top end copper washer sealing set------6.50
engine case screw set--------------------10.00
copper drain plug gaskets----------------3.50
sump filter--------------------------------29.50
side filter----------------------------------10.50
total-------------------------------------$429.00
Other than those parts, the only money spent was one new exhaust stud, a couple cans of engine paint and cleaning materials. I had the two cam seals and kickstart seal left over from a seal kit I'd bought for the '79. The bottom end seals are just as easy to replace in the frame. I'll swap them out later on if they leak. This bike had the #4 starter gear issue, and I crimped the spring in a vise as shown in this how-to. I'd planned on just getting rid of the electric start, but if this fixes it for no cost I'll keep it.
Very nice work
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