ChoppyChoppy
Tree Freak
Thanks for the info. I did some searching and came across this:IIRC they have a Q-port I believe it’s called on the top of the exhaust port. Supposed to act as a decomp at starting speeds.
https://www.arboristsite.com/community/threads/mculloch-pm-610-odd-exhaust-port.179338/
Anyone know why the photos aren't working?