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ENGINE #12
FEBRUARY 2013
Install a temperature regulator bracket
1. Remove the three 6 mm flange nuts and the recoil starter.
2. If there is gasoline in the fuel tank, drain into an approved container. Do not tilt the fan cover with
fuel in the tank. Saturating the charcoal cap will prevent the cap from venting properly.
3. Position the fan cover to the rear of the engine.
4. Place the temperature regulator bracket on
the cylinder barrel as shown, making sure the
bracket is positioned over the aluminum fin.
5. Install the 6 x 14 mm self-taping flange bolt
making sure it is straight during installation.
Tighten the bolt to the proper torque.
TORQUE:
106 ~ 133 in•lb (12 ~15 N•m)
6. Reinstall the fan cover and recoil starter and
tighten the 6 mm flange nuts to the proper
torque.
TORQUE:
75 in•lb (8.5 N•m)
Check operation
1. Turn the fuel valve ON and check for leaks.
2. Start the engine and allow it to run for several
minutes until it reaches normal operating
temperature.
The choke should fully open within 2 minutes.
3. Adjust the maximum engine speed if necessary.
Engine speed:
2950 ~ 3100 RPM
If adjustment is necessary, bend the governor
spring tab on the throttle control plate very
slightly.
Bending left
- increases spring tension and raises engine speed
Bending right
- decrease spring tension and lowers engine speed.
4. Allow the engine to cool completely.
5. Start the engine and let it run for exactly 45 seconds.
6. Stop the engine and allow it to cool for exactly 15 seconds.
7. Restart the engine to make sure the symptom does not recur.
