Yep that's how it works, rather simple really. But effective.
& Yes the oil is run thru the oil pump & to the oil filter First, then to the motor. That's a switch.. They used a 10 micron filter that lots of evo guys thought was 'tits' & later found out it was too restrictive. HD put out a TSB on this. Not for evos...
If you need any other close-ups, I may
have em. Let me know.
& I agree you don't want anything working loose @ 7K
I think the S&S gear set is the only
way to go. HD may have had to use chains for the noise police ?
This motor is a tc88 A (rubber-mount) , you should see the 2 additional long chains used in the tc88B (solid mount) it's crazy.. That's 4 chains !!!!
There are 2 nylon type chain tensioners, that I have seen @ 1000 miles during a particular cam change showing some heavy wear.. Not ideal imo..