assembly, you will notice that the shift drum will rotate very slightly. This is caused by the detent plunger centering itself in the detent hole in the right end of the drum. The reason for doing all this is to be certain that the detent holes have been machined in the proper place in relation to the groove in the shift drum. Therefore, with the gearbox in 1st gear, turn the cletent assembly inward as previously stated, two or three turns. The shift drum will probably rotate slightly. Check the amount of engagement between the first idling gear and the Ist and 3rd sliding gear. It should be the same as when you checked it previously. If not, replace the shift drum.

35. Remove the detent assembly and turn the shift drum until 2nd gear is fully engaged. Then, while holding the shift drum to the right, screw the detent assembly inward two or three turns. If the shift drum rotates slightly, check the gear engagement to insure that it is the same as when you previously checked it. Again, if the amount of engagement is
insufficient, replace the shift drum.

36. While still in 2nd gear, and with the detent assembly still in place, install the selector shaft mechanism, pushing it in firmly until it is fully seated, and the return spring is on the anchor pin. Take note that there are two shift drum selector pins between the tips of the selector pawl. Each of these two pins should be an equal distance away from the tips of the pawl (Fig. 60). If they are not, the end of the selector return spring will need to be slightly bent until these pins are centered between the pawl tips. If you must bend the spring, be sure that after it is bent, the ends are still a snug fit on the anchor pin.

37. Remove the selector and cletent assemblies, and repeat both these checking processes for 3rd and 4th gear. If the location of the selector pins varies from one gear to another, or if insufficient engagement of the gears occurs after installing the cletent, the shift drum will necessitate replacement.

FIG. 60

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