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Adjusting the Two-Speed Transmission
The S-Maxx comes equipped with a two-speed transmission.
When the shift point on the transmission is adjusted correctly, it
will maximize acceleration and improve drivability. If necessary,
use the supplied 2.0mm hex wrench to adjust the shift point.
1. Stop the engine.
2. Remove the large rubber plug from the transmission housing.
3. Look into the hole in the transmission housing and rotate
the spur gear until the access hole in the aluminum drum
is visible.
4. Once the access hole is
visible, hold the spur gear
HOLD
and use your finger to
turn the primary gear
shaft which extends from
the transmission housing.
Turn it clockwise. Note
that you will see two set
screws pass under the
access hole. As you slowly turn
the primary gear shaft
counterclockwise, the first set
screw that becomes visible
holds the two-speed
mechanism on to the shaft. Do
not loosen this screw.The
second set screw is the
adjustment screw.
5. Insert the 2.0 hex wrench
through the clutch drum and
into the adjustment set screw.
6. Turn the adjustment screw 1/8
turn clockwise to raise the shift
point (later shifts). Be careful not
to over tighten the adjustment
screw or you may damage the
tension spring. Do not make
constant adjustments or you will
loosen the screw's locking
device.
7. Turn the adjustment screw 1/8
turn counter-clockwise to lower
the shift point (earlier shifts). Be careful not to loosen the
adjustment screw too much or you may cause the screw and
spring to fall out (requiring major disassembly and repair).
8. Use 1/8 turn increments to find the approximate,
desired shift point.
9. Check performance by running a test lap after each
adjustment.
10. Use 1/16 turn increments to fine-tune the shift point.
11. Be sure to reinstall the access plug to prevent dirt from
entering the transmission.
Adjusting Your S-Maxx
41
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