Service Manual

CARBURETOR 4-3
CARBURETOR INSTALLATION
1. Install throttle linkages (A) and choke linkage
(B) on carburetor.
2. Install breather connector (C) on intake pipe
(D).
3. Assembly gaskets (E), heat shield plate (F),
carburetor (G), gasket (H) and intake pipe
(D).
4. Install carb. ass'y on inlet pipe (I) with through
bolts
(J).
CARBURETOR ADJUSTMENT
WARNING: Gasoline is dangerous.
Avoid fires due to smoking or careless maintenance
practices.
Adjust Idle Mixture
Air cleaner must be assembled to engine.
1. Turn idle mixture screw
(B) in until it just
seats, then back it out 1-1/8 turns.
CAUTION:
Do not turn the screw in too far.
The pointed end of
valve seat is susceptible to
damage.
2. Start and allow engine to warm. Move throttle
lever on equipment to "IDLE POSITION".
3. Use
a tachometer and adjust throttle stop
screw (A) to obtain 1,350 to 1,450 rpm by
turning
it in or out while holding the end of
the screw against carb. body.
4. Adjust idle mixture screw
(B) by turning
clockwise (lean) or counterclockwise (rich) to
obtain the peak of idling.
5. Turn idle mixture screw
(B) back out 1/4
turn more.
6. Use a tachometer and readjust throttle stop
screw (A) to obtain and satisfy specified 1,350
to 1,450 rpm idling.
7. Stop engine.