217
10.11.12.2 Walbro WVF-7P Carburetor
-
Check that the piston (picture) exhibits no
scratches or oxidation and that it slides freely
into the seat.
-
Check the unloaded length of the spring.
-
Check that the piston sealing gasket exhibits
no deformations.
-
Measure the projection of the piston as shown
in the figure, and check the corresponding
value.
-
Ensure that the starter settles at ambient
temperature.
Standard dimension:
Piston length @ 68
°
F (
20
°
C
)
0.492-0.512 in
(
12.5-13.0 mm
)
-
The choke should gradually disengage as it is
being heated electrically.
-
Check the choke resistance at ambient
temperature.
Standard resistance:
Choke resistance @ 68
°
F (
20
°
C
)
~40 O
-
Using a 12V battery, power the automatic choke and check that the piston reaches its
maximum protrusion.
Note:
When performing this check do not generate any short-circuits. It is therefore
necessary to use a cable with suitable terminals.
-
The effective heating time depends on the ambient temperature.
-
If measured projection, resistance or time values are inconsistent with the prescribed
ones, replace the automatic choke assembly.
Summary of Contents for GT 200
Page 1: ......
Page 90: ...90 9 1 2 Turn Signal Lights Horn Services and Accessory Pre Wiring ...
Page 151: ...151 10 10 Lubrication Circuit ...
