13
2-Speed Adjustment
Although pre-set at the factory, the two-speed can be
adjusted to shift at the point that suits you best. Under normal
circumstances, it should shift well before the engine reaches
maximum power. The actual distance traveled will vary with the
gear ratio and tune of the engine. Tightening the adjustment
screw (turning to the right/clockwise) will make the two-speed
shift later. Loosening the adjustment screw (turning to the left/
counterclockwise) will make the two-speed shift later. Follow
these simple instructions:
1. Place the rear of the chassis on a block so the wheels can
turn freely.
2. Remove the plug at the top right hand side (looking from
the back toward the front) of the transmission case. You
will see the 2-Speed mechanism through the access hole
(Photo 1).
3. Roll the spur gear forward until you can see the hex of the
black setscrew in the inner rotating hub as seen in photo
2 and skip to Step #5. If the adjustment setscrew is not
visible continue on with Step #4.
4. Hold the spur gear and turn the wheels forward slowly
stopping when you can see the hex of the black setscrew.
5. Insert a 5/64-inch hex wrench into the setscrew.
6. Turn the setscrew ½ turn clockwise to make it shift later.
or
Turn the setscrew ½ turn counterclockwise to make it shift
sooner.
7. Replace the rubber plug.
Summary of Contents for Speed NT
Page 23: ...23 Operating and Tuning Notes...