I've got the engine shrouding removed off of a Kohler V-twin right now, in order to clean out the mouse nest that was constructed over the winter. Air cooled engines don't appreciate it when the nest debris obstructs the air flow over a cylinder head. Bad things happen to the valvetrain.

"Forget pounds and ounces, I'm figuring displacement!"

If we accept that: MBG(+)FGSF(=)HBG(F1)
And we surmise that: BG(>)HBG(F1) while GSF(<)HBG(F1)
Would it hold true that: HBG(F1)(+)AM500(x)q.d.(=)1.5lbGRWT?
PB answer: It depends.