Measuring Cylinders - BMW R100 Airhead

How to accurately measure a motorcycle or power sports cylinder. The example used today is a customer provided BMW Airhead R100 cylinder.
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[@Regiom-vp8ju]

Thank you, I am new with a BMW R 65 damaged piston, this is an excellent expert presentation on cylinder bore and tolerances, I learned how precise measurements this airheads require.

[@MaineMachinist]

Glad it was helpful! Thanks for watching!

[@ke6bnl]

That. Was helpful

[@MaineMachinist]

Hope you enjoyed it! Thanks for watching. I appreciate it.

[@vintage76vipergreenBeetle]

👍

[@MaineMachinist]

Thank you for watching, as always!

[@chrisfiat]

Very good explanation. Where are you located in Maine. I am in nh and may need some work in the future

[@MaineMachinist]

I’m way up at the end of the highway. Last stop of I95…. But UPS delivers! :-)

[@glensutherland1103]

Hello,is that the sunnen book your getting specs from or another book?

[@MaineMachinist]

This is the Chilton Manual for BMW 2 Valve Boxers