37. With one hand, attach the OSSA special tool (No. 121-957, clutch operating tool) to the clutch actuating lever. Move it to the left far enough for the clutch pressure plate to disengage. Hold it at that point, and with your other hand, push the kickstarter, which will turn the pressure plate (Fig. 105). If the clutch springs are not adjusted evenly, the pressure plate will not run true or will seem to "wobble" while turning.
38. To correct this, turn the kickstarter slowly while continuing to hold the clutch in a disengaged position. Locate and mark the point where the pressure plate is farthest from the rest of the clutch plates. Release the clutch and turn the nut, or nuts, closest to your mark inward one-half turn, and repeat the test. Do this until the pressure plate runs true.
39. When reassembling a clutch that is worn somewhat, the springs should be turned in another 1/2 to 11/2 turns farther than the usual amount, to correct for the wear in the plates. Two things should be remembered when doing this.
(a) The nut cannot be turned in too far or the clutch will drag when disengaged and the clutch will be hard to operate.
(b) If the nuts are turned in too far, the cotter pins or safety wire cannot hold them in place and the rotation of the clutch will cause them to loosen while the engine is running.
40. When the clutch nuts have been properly adjusted, install a cotter pin (OSSA Part No. OCA-10015) through each stud and bend the legs of the pin outward. If safety wire is used, draw the wire through each hole without moving the nut in the process. When the wire has been threaded through all of the studs, twist the ends of the wire together with 4 or 5 revolutions and bend the twisted end down against the pressure plate to keep it from hitting the inside of the primary case while the clutch is turning.
41. Remove the magneto side cover, being careful not to lose the clutch actuating plunger.
42. Slide the flat selector shaft retaining washer down on the selector shaft until it contacts the snap ring. Then place the selector shaft spring washer over top of it.
43. If you had removed the two hollow guide pins from the left engine case, install them back into the case. If you did not remove them, check their condition. If they are bent or otherwise damaged, replace them.
44. Grease both sides of a new primary case gasket and fit the gasket to the engine.
45. Thoroughly clean the primary case and check the condition of the "0" rings that are located in the selector shaft and kickstarter shaft holes. If the "0" rings appear to be cut, flattened, or damaged in any way, replace them.
46. Turn the engine so that the primary drive is facing upward. Open
a one quart can of Full Bore SAE 80 Racing Gearbox Lubricant, or