This adjustable drive pulley allows setting maximum engine RPM in
the vehicle to maintain maximum power.
Calibration screws should be adjusted so that actual maximum en-
gine RPM in vehicle matches with the maximum horsepower RPM.
NOTE: Use precision digital tachometer for engine RPM adjustment.
NOTE: The adjustment has an effect on high RPM only.
Calibration screw has a notch on top of its head.
1
A33D19A
1. Notch
Thereare6positionsnumbered1to6. OnTRAdrivepulley,note
that in position 1 the number is substituted by a dot (due to its loca-
tion on casting).
190
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