The service manual indicate that between 5/8 and 7/8" slack should be in the primary chain. This is while adjusting through the oil fill hole. As I look at the chain with my side cover off I'm not sure how this measurement should be taken. When I move the chain up and down, is this the distance:
Option A: Compare top of chain with chain lifted up to bottom of chain when chain is pushed down.
Option B: Measure center of chain lifted up to center of chain when chain is pushed down.
Thanks, Mike
Option B