Hammermechanicman
Lawn Addict
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This thread took a left turn a long time ago.
Manual 2-stroke compression releases were used for braking, when the drum brakes back then would wear out in one enduro, sometimes before it was over. Disc brakes solved that problem.Never seen a mechanical ACR on a multi cylinder 4 stroke bike. Honda did have one on the XL500S. It was a 500cc 4 stroke thumper that pretty much killed off the 2 strokes used in flat track racing. Back in the heyday of big single racing 2 strokes it was common to have a compression release activated by a lever on the handlebars. Wasn't used for starting but rather modulation of power while holding WOT.