| How to Check and Adjust the Throttle |
Engine revs at idle - bike wants to take
off when engine is started, Before you give
it the gas?
The throttle cable is probably attached too
tightly OR has sharp turns, causing loss
of "free-play". Relax turns and
loosen cable, route cable w/more gradual
turns where attached to handlebar and engine.
- Do Not adjust idle screw (C) - this will Not restore throttle free-play
nor idle engine down.
If unable to relax cable, and the bike still wants to take off when engine is started
- Adjust throttle cable at carburetor:
- Loosen Lock Nut (A)
- Screw barrel nut on carb (B) clockwise (In) - until throttle cable, sitting
in connector arm, sits against Idle adjustment
screw (C).
Check for full throttle:
- While holding trigger throttle Wide open,
pull throttle cable (D) where attached to
engine - if No movement is detected, you
are getting full throttle, no adjustment
required.
If movement Can be detected when pulled -
you are Not getting full throttle:
- Adjust throttle cable at carburetor:
- Loosen Lock Nut (A), screw barrel nut on
carb, (B) counter clockwise (OUT) Slightly
- then check for cable movement, adjusting
in/out as needed.
** IMPERATIVE **
LOCK NUT MUST BE
LOOSENED FIRST - BEFORE ADJUSTING BARREL NUT!!! |
** For those who did Not loosen lock nut
1st - replacement Barrel nuts are available
at most small engine sales/service dealers.
O/D 6mm
Same size barrel adjusting nut available
at many bicycle shops, listed as Brake adjusting
barrel.
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