1-S24
GR1600EC2, WSM
ENGINE
(2) Timing Gear, Camshaft and Fuel Camshaft
Injection Pump and Speed Control Plate
1. Remove the socket head screws and nuts, and remove the
injection pump (3).
2. Remove the screws and separate the speed control plate (2),
taking care not to damage the governor spring (4).
3. Disconnect the governor spring (4) and remove the speed control
plate (2).
(When reassembling)
• Hook the governor spring (4) to the governor lever (5) first and
install the speed control plate (2).
• Be sure to place the copper washers underneath two screws (1).
(Two screws (1) in the upper of the speed control plate (2).)
• Position the slot (9) on the fork lever just under the slot (8) on the
crankcase.
• Insert the injection pump (3) so that the control rod (7) should be
pushed by the idling adjusting spring (6) at its end and the pin
(10) on the rod engages with the slot (9) on the fork lever (as
shown in the figure).
• The sealant is applied to both sides of the soft metal gasket
shim. The liquid gasket is not required for assembling.
• Addition or reduction of shim (0.05 mm, 0.0020 in.) delays or
advances the injection timing by approx. 0.0087 rad. (0.5 °).
• In disassembling and replacing, be sure to use the same
number of new gasket shims with the same thickness.
W1028534
Fan Drive Pulley
1. Secure the flywheel to keep it from turning.
2. Remove the fan drive pulley screw.
3. Draw out the fan drive pulley with a puller.
(When reassembling)
• Install the pulley to crankshaft, aligning the mark (1) on them.
• Apply engine oil to the fan drive pulley retaining screws. And
tighten them.
W10181950
(1) Screw and Copper Washers
(2) Speed Control Plate
(3) Injection Pump
(4) Governor Spring
(5) Governor Lever
(6) Idling Adjusting Spring
(7) Control Rod
(8) Slot (Crankcase Side)
(9) Slot (Fork Lever Side)
(10) Pin
Tightening torque Fan drive pulley screw
98.0 to 107.8N·m
10.0 to 11.0 kgf·m
72.3 to 79.5 ft-lbs
(1) Alignment Mark
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