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Adjust inner drive chain:
1. Locate the four jack-shaft mounting bolts and
loosen.
2. Slide the jack-shaft plate until you get a 1/4- 1/2in
chain tension on the inner drive chain.
3. Tighten jack-shaft mounting bolts (15-18 ft-lbs).
Adjust outer Drive Chain:
1. Loosen the 4 engine mounting bolts (two in front
and two in back).
2. Locate the two engine slide bolts on the rear
mounting plate. Tighten or loosen them to move
the engine backward/forward to achieve 1/4-
1/2in slack in outer drive chain.
Move the engine slide screws
the same amount when adjusting the engine loca-
tion. Failure to do so can create misalignment be-
tween drive gears and output gear on the jack-shaft,
this can result in the drive chain jumping off during
operation.
3. Re-tighten engine mounting bolts to 15-18 ft-lbs.
Once you’ve completed adjustment on both chains,
recheck to see if they still have proper chain tension.
Your Monster Moto MMK80 go-kart uses a jack-shaft plate to transfer power from the engine to the
rear wheel. This set-up requires use of two drive chains, both of which need to be maintained in order
to keep your go-kart operating smoothly. We will cover how to properly adjust chain tension and
maintain the drive train to achieve the most life out of your product.
To adjust the drive chains, follow the steps below:
1. Raise the rear of the go-kart off the ground so the rear wheels spin freely and place blocks under-
neath to support the vehicle.
2. Remove the chain guard cover and set aside.
27
Basic Maintenance Procedures
Drive Chain Adjustment
WARNING
!
Engine slide
bolts
Jack-shaft
mounting
bolts
Inner
Chain
Outer
Chain
Rear engine mounting
bolts
