ADJUST TWINCAM HARLEY PRIMARY CHAIN - FXSTD Softail Duece Harley Davidson Motorcycles

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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

Remove the small access plate on the primary cover. Inside you'll see the primary chain adjuster and shoe. Loosen the bolt and slide it up or down to adjust the chain. Moving the shoe up tightens the chain. Adjust the chain so that you've got between 5/8 and 7/8 in up and down movement at the middle of the upper run of the chain with the engine cold.

Good Luck
Steve

after safely supporting rear wheel off ground, remove small inspection cover from primary cover. rotate rear wheel until primary chain is at tightest point. cold engine- chain free play should be 5/8" - 7/8", hot engine should be 3/8" - 5/8". to adjust, loosen primary chain adjuster shoe nut (bolt head is similar to a carriage bolt-square head), sometimes you will need to tap bolt end to free up adjuster, as it sits in grooces to hold at desired level. adjust to desired tension and tighten bolt to 22-29 ft/lbs. then recheck chain freeplay after rotating rear wheel at least one full revolution. If OK, reinstall cover.