Service Manual

Carburetor Inspection and
Adjustment After Reassembly
1. After installing mixture adjusting screw (MAS) set ini-
tially by turning clockwise until seated – DO NOT over-
tighten
– then back out 2 full turns counterclockwise.
MAS
Figure 149
2. Make sure alignment mark (engraved) on cam lever
is lined up with center of cam follower
.
Alignment mark
Figure 150
3. Measure throttle valve to throttle bore clearance.
Throttle valve to
throttle bore clearance 0.3 mm (.012 in.)
Figure 151
4. If clearance is out of specification, adjust to standard
value with fast idle adjusting screw
.
Fast idle
adjusting screw
Figure 152
Liquid Cooled
Gas Engine
Workman 3000/4000 Series
Page 3 – 77
Liquid Cooled Gas Engine