I took some time this weekend to finish up on the cylinder heads. I worked on the right hand side, cleaned + painted. Then both went back on the bike, with the nice freshly painted exhaust system (had a bit of a gas leakage that took away some paint on the down pipes - but that's all sorted now)
this also gave me the opportunity to replace the tappets on the right side, as they were a bit buggered. (id already done the ones on the left):
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| Somewhat worn tappet tops. The other end wasnt to bad, but was a good idea to replace the whole lot.. |
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| new tappets |
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| old and new |
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| cleaned + painted right cylinder head |
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| this one had a chunk of a cooling fin missing, no idea how that happened, but its not a problem. Everything else is structurally good. |
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| and the left on the bike |
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| right one, on the bike - here i was setting the distances for tappets. |
Setting tappets:
from what i understand it goes like this; (only applies to side-valve engines)
ALL THESE SETTINGS ARE WITH A COLD ENGINE
- Turn the kick start until the INTAKE valve is completely closed.
A gap must be visible (or "feeler-ed") between the valve and the lifter.
Set the gap on the EXHAUST valve to .10mm - .15mm.
- Turn the kick start until the exact moment the EXHAUST valve begins to
lift. Set the gap on the INTAKE valve to .05mm - .10mm.
- Repeat on other side.
- Turn the kick start and recheck measurements.
once all these were set, i kicked it over to see if i had made any error in reassembling etc.
It started first go.
i'd say thats good.
