218353

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Replaces centrifugal clutch system and boosts performance
Clutch is asymmetric-type torque converter system with asymmetric sheave faces; this makes it possible to force the belt to a diameter within the drive clutch (at high rpm) that exceeds the usual 1:1 drive ratio
TAV2 system can actually attain a .90:1 ratio (10% overdrive)
Movable sheave face is 18°, stationary sheave is 2.5°, for a collective angle of 20.5°
For use with 2- and 4-cycle engines up to 8hp