Engine noise.

Patton wrote:

. . . Use the 17mm bolt under the points cover to turn the engine forward until the T mark on the advancer unit lines up with the fixed mark on the engine. Never go backward. If go past the T mark, just go around again. This position puts maximum slack on the back side of the cam chain . . .

I have a question.

On my 650, the proceedure is to roll the engine past the T mark on the 2-3 cylinder, to a point about 20 degrees past it, to where there is a place on the advancer that is designated at the chain adjustment point. Where did your information come from?

Maybe there is a difference I need to know about.