Sachs motor Cylinderhead resurfacing

[pklinck]

I just resurfaced the cylinderhead for my 73' penton 125.  I didn't know the history of this head since I barterd for it in the past.  I decided to measure with a depth gauge, from the surface of the head to the bottom of the bowl next to the spark plug hole.  I found that this cylinder was .015-.020 less in depth than on my other cylinderhead for the other 125 motorcycle.  these are both sachs B engines.

My question, with .015-.020 shaved off the cylinderhead, how this will effect the running condition over and above slight increase in compresion ratio???  Let me know.

peter klinck

[socalmx]

Back in the day Uncle Donny milled my head .060 as part of his porting process.