July 31, 2013

Shimmed and Ready

Got the new shims in the mail today; ordered them from Thunder Valley Powersports and they were good about keeping me up-to-date on where my order was at.  With parts in hand I set about correcting my valve clearances. Using my spreadsheet from before, I was able to easily decide which […]

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July 21, 2013

Calculating New Valve Shims

Went back into the cylinder head and took some measurements. Dirty work, but had to be done. I used metric feeler gauges to find the clearance and a digital micrometer to find the thickness of the current shims. The manual mentions that the shim thickness should be between 0.06mm and […]

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July 7, 2013

Clean Carbs But Still No Love

Finally had a chance to button up all the carbs and get the pack rebuilt.  My attempts to fix the stripped air mixture screw all went poorly, so ultimately I picked up a replacement off of Ebay and cleaned it up.  Things are looking pretty clean and came together quite […]

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June 21, 2013

Further Carb Work

Finally got some time to get back to the surprisingly clean carbs from the CB900.  I went through the various air and fuel passage ways with some carb cleaner and all the pathways seem pretty clear.  Piece by peice I started reconstructing the carbs replacing all original bolts with stainless […]

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June 13, 2013

XS400 Sold!

Well it’s sold! Made a few bucks on it, covered the parts I put into it and moving on. Based on my experience finding XS parts, and the build quality in general I think I’ll stick with Honda’s in the future. That said, the next owner is happy with the […]

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June 5, 2013

Tearing Down the Carbs

Finished tearing down the carbs to prepare them for a cleaning.  Found a missing washer (carb 4) on one pilot/air mixture screw and a missing O-ring (carb 1) on another.  The missing O-ring likely explains the amount of fuel build up on the number one carb.  In addition, the primary […]

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August 7, 2012

Yamaha Petcock Partial Rebuild

After getting the prettied up tank onto the XS400 we found a fuel leak.  At first the theory was a leak up around the mount point of the petcock, but further investigation found that it was a passage way on the diaphragm assembly that was causing the problem. It’s difficult […]

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