Toro Workman 3000 Series Service Manual page 115

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.
2. Make sure alignment mark (engraved) on cam lever
is lined up with center of cam follower.
3. Measure throttle valve to throttle bore clearance.
Throttle valve to
throttle bore clearance
4. If clearance is out of specification, adjust to standard
value with fast idle adjusting screw.
Workman 3000/4000 Series
0.3 mm (.012 in.)
Page 3 – 77
MAS
Figure 149
Figure 150
Figure 151
Fast idle
adjusting screw
Figure 152
Liquid Cooled Gas Engine
Alignment mark