Specifications

37
Engine Overspeed
1. If the engine runs wide open (faster than normal),
shut the engine off immediately.
Failure to shut off the engine if
overspeeding, can result in serious
injury or death.
2. Check the condition of the external governor
shaft, linkage, governor spring, and speed control
assembly for breakage or binding. Correct or
replace binding or damaged parts.
3. Follow the governor static adjustment procedure
and reset the governor.
4. Start the engine. Be ready to shut the engine off if
an overspeed condition still exists. If the problem
persists, attempt to hold the solid link between the
governor arm and the carburetor throttle plate in one
position. If this controls the condition, the engine
will require disassembly to inspect the governor
gear assembly for damage, binding, or wear.
5. Remove the governor gear assembly. Repair or
replace as necessary.
Engine Surging
1. Try to stabilize engine R.P.M. by holding the solid
link between the bell crank lever and the carburetor
throttle plate in a fixed position using a pliers or
fingers (diag. 69).
2. If the engine R.P.M. stabilizes, re-adjust the
governor setting. Check the governor shaft,
linkage, bushing clips and spring for binding, wear,
or improper hookup. Replace as necessary. If none
of these correct the problem it may be necessary
to disassemble the engine for internal governor
repair.
3. If the engine R.P.M. does not stabilize, it may
require additional checks of the fuel system, see
the fuel system troubleshooting section.
69
WARNING
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