Transmission Box - Eton America Beamer PN2 Service Manual

There is a Torque Cam on the Movable Drive Face.
The torque Cam is loaded from the outside. When the outside load is higher than the engine's output, the
pulley of the fixed shaft and belt slip to make the Movable Drive Face move along the inner side of the
cam and compensate to increase to high torque (toward low speed) and make the engine maintain
smooth running with original revolution.

7.6 TRANSMISSION BOX

The torque received by the drive shaft will be transmitted by the speed reduction of two sets to the rear
axle shaft.
The first gear ratio is 36/13.
The second gear ratio is 48/12.
DISASSEMBLING THE TRANSMISSION BOX
1. Remove the exhaust pipe.
2. Unscrew rear axle nut and remove rear wheel.
3. Unscrew oil-drain bolt at the bottom of crankcase.
4. Let the oil flow out from transmission box.
5. Unscrew six bolts of transmission box cover.
6. Remove the transmission cover.
7. Remove the gears from transmission box.
Beamer Rev-2.0.2
Torque value: M6: 7 - 9 lbf-ft
M10: 25 – 29 lbf-ft
Lubricating oil is SAE 80/90, 100cc/3.4oz.
Page 32 of 55 11/21/2005