RA PD 310223
Figure 26—Adjusting Clutch Spring Tension
d. Adjusting Clutch Spring Tension ([fig. 26]). If clutch slips (does not hold when starting engine or with vehicle in operation) after controls have been correctly adjusted (step c (1) and (3) above), spring tension must be increased. NOTE: Do not increase spring tension any more than actually required to make clutch hold.
(1) Remove front outer chain guard (par. [102]).
(2) Bend down lock lips to free the three clutch adjusting nuts.
(3) Turning nuts to right (clockwise) increases clutch spring tension. Tighten (turn to right) all three adjusting nuts, one‐half turn at a time, until clutch holds. Test clutch after each half‐turn of the three adjusting nuts by cranking engine. Usually a clutch that holds without any noticeable slippage when cranking engine, also holds on the road.
(4) After clutch spring tension adjustment is made, bend up nut lock lips to secure adjusting nuts. Replace any broken or badly damaged locks.
(5) When a new clutch is originally assembled and adjusted, the distance from the inner edge of shoulder on spring collar to face of outer (releasing) disk is 1–3/32 inches ([fig. 27]). In any case, do not tighten the three adjusting nuts to the point where inner edge of shoulder of spring collar is closer than ⅞ inch to face of outer (releasing) disk. If compressed more, clutch probably cannot be fully disengaged.
RA PD 310224
Figure 27—Measuring Distance Between Spring Collar and Disk