Honda HRS21 Owner's Manual page 35

Drive Clutch Free Play (Self-propelled type only)
1. Measure free play at the top of the lever as shown; it should be between
5- 1.0 mm (3/l 6-33/8 in).
2. If adjustment is necessary, loosen the lock nuts and turn them to run the
adjuster up or down as required. Tighten the lock nuts and recheck free
play.
I
3. Start the engine and check to be sure the drive clutch engages and
releases properly.
5-10 mm (3/16-3/8 in)
VE CLUTCH LEVER
LOCK NUTS
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