Service Manual

5. Check float operation. Check float and lever for de-
formation and damage.
6. Check operation of throttle valve, choke valve and
linkage. I
f they do not operate with light force, wash well
and apply engine oil sparingly to the shaft(s).
7. Check float chamber body and mixing body for dam-
age and cracks.
8. Check fuel cut solenoid valve (FCSV). The FCSV
should operate with a click when battery voltage is ap-
plied.
Figure 142
9. Use an ohmmeter to make sure there is no continuity
between FCSV body and terminal.
10. Measure resistance between terminals.
Resistance standard value
48 – 60 Ohms at 20
C (68F)
Figure 143
11. On carburetors with an identification mark of TMB
only
, check tapered end of mixture adjusting screw
(MAS) for damage from overtightening or other causes.
Carburetor Reassembly
1. Make sure correct jets are installed at correct loca-
tions. Note size symbol stamped on each jet for identifi-
cation and identification Mark on the carburetor
.
Carburetors with Identification Mark TMB
Pilot jet
Main jet
Power jet
Size symbol
Size symbol
Size symbol
Power jet 120
Main jet 90
Pilot jet 50
Figure 144
Liquid Cooled
Gas Engine
Carburetors with Identification Mark TEB
Power jet 132.5
Main jet 101.3
Pilot jet 50
Workman 3000/4000 Series
Page 3 – 75
Rev. B
Liquid Cooled Gas Engine