Zero Motorcycles MX, Owner'S Manual, Page: 63 / 100

5-10
32 mm (1.25 in)
Checking The Drive Chain
1. Remove the key from the key switch.
2. Using a ruler, grasp the chain halfway between
the front and rear sprockets.
3. The chain should move 16 mm (.63 in) in either
direction, so 32 mm (1.25 in) of total free play.
4. If the chain’s free play is not within specifications
it will need to be adjusted. See the Drive Chain
Adjustment Procedure.
Drive Chain Adjustment Procedure
1. Remove the key from the key switch.
2. Loosen both front motor mount Allen bolts (B).
3. Loosen both rear motor mount Allen bolts (A).
4. Loosen the 10 mm jam nut (C) on the chain
tensioner.
5. Turn the tensioner bolt (D) a 1/4 turn at a time
until the chain free play is within specification.
6. Tighten all motor mount Allen bolts. See Bolt
Torque Table on page 5-2.
7. Tighten the 10 mm jam nut on the chain
tensioner. See Bolt Torque Table on page 5-2.
8. Test ride the motorcycle.
9. Recheck the chain for proper adjustment after the
test ride and readjust if necessary.