My 4909 will really wind the hell out of first gear before hitting second.
I think I want to make it shift a bit sooner.
So I loosen that screw in the tranny..... right? How far should I turn it? I assume its not as sensitive as the carb adjustments LOL
1/2 a turn? 5 turns?
Thanks!!!
I can always just try it...... but i am wondering how sensitive this thing is.
This is the direct quote from Traxxas manual
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 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.
