Choke Breaker Opening - Toro Workman 3000 Series Service Manual

Choke Breaker Opening

1. Inspect after doing Full–Auto–Choke inspection.
2. Run engine at idle. Move choke valve in closing direc ­
tion with light finger force until valve resists being
moved. Measure clearance between choke valve and
choke bore at this point.
Choke valve to choke bore clearance
(Carburetor ID Mark TMB)
Choke valve to choke bore clearance
(Carburetor ID Mark TEB)
3. If clearance is out of specification, adjust by opening
or closing part shown in illustration.
Rod end Valve clearance
Opened Larger
Closed Smaller
Liquid Cooled Gas Engine
1.8 mm (0.071 mm)
2.3 mm (0.091 mm)
Remarks
Engine becomes more
difficult to start and
tends to stall
Carbon tends to
accumulate on spark
plugs
Page 3 – 26
Choke valve
Figure 37
To close
Figure 38
Rev. B
Clearance
To open
Workman 3000/4000 Series