Because the clutch cable adjuster clearance increases with engine temperature, adjust
the clutch when the engine is cold. If the clutch is adjusted when the engine is hot, insufficient pushrod clearance can cause the clutch to slip.
1. Remove the clutch mechanism inspection cover and
quad ring
2. Remove the clamp and slide the rubber boot off the clutch in-line cable adjuster.
3. Loosen the adjuster locknut and turn the adjuster to provide maximum cable slack.
4. Make sure the clutch cable seats squarely in its perch at the handlebar.
5. At the clutch mechanism, loosen the clutch adjusting screw locknut and turn the adjusting screw clockwise until it is lightly seated.
6. Squeeze the clutch lever three times to verify the clutch balls are seated in the ramp release mechanism located behind the transmission side cover.
7. Back out the adjusting screw counterclockwise 1/2 to 1 turn. Then hold the adjusting screw and tighten the locknut to 72-120 in.-lb.(8-14 N•m).
8. Once again, squeeze the clutch lever to its maximum limit three times to set the clutch ball and ramp release mechanism.
9. Check the free play as follows:
a. At the in-line cable adjuster, turn the adjuster away from the locknut until slack is eliminated at the clutch hand lever.
b. Pull the clutch cable sheath away from the clutch lever, then turn the clutch cable adjuster to obtain the clearance gap
c. When the adjustment is correct, tighten the clutch in-line cable locknut and slide the rubber boot over the cable adjuster.
10. Install the clutch inspection cover quad ring onto the primary chain case cover.
11. Install the clutch inspection cover and tighten the screws to 84-108 in.-lb. (9.5-12 N•m).
SOURCE: Clutch adjuster threads in primary cover very worn
Anything that works is acceptable. Instead of helicoils, I'd prefer to use either a Timesert or a Keensert. They are available in various lengths. The longer the better of course, but these things are made of steel and don't wear if they get loose. That's what wears the threads in most of the Sporty primary covers, the adjuster was run loose and vibration wears the threads. If you know a good welder, that's the way to go.
Good luck
Steve
SOURCE: primary chain hitting case on
The primary chain adjustment has nothing to do with the clutch. Take the small upper inspection cover off the primary cover and use your finger to check the primary chain tension. It should have 3/8 to 1/2 inch up and down movement in the top run of the chain when the engine is cold. To adjust, loosen the lock nut on the primary chain adjuster on the bottom of the primary case. Turn the screw upward to tighten the chain, downward to loosen. Once set, tighten the locknut.
To adjust the clutch, loosen the clutch cable adjuster as much as you can. Remove the derby cover from the primary cover. Remove the spring and the locknut. Turn the adjuster screw counterclockwise as far as it will go. Turn it back in 1/4 turn and replace the lock nut and the spring. Replace derby cover. Adjust the clutch cable so that you have about a 1/8 inch play at the hand lever.
Good Luck
Steve
SOURCE: inner primary case bolts- torq in lbs and bolt
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