Service Manual

3. If the high speed RPM exceeds 8,800 RPM, the
governor assembly in the carburetor must be
cleaned or replaced and the carburetor readjusted.
STORAGE INSTRUCTIONS
WARNING: Explosive Fuel!
Gasoline is extremely flammable and its vapors can
explode if ignited. Store gasoline only in approved
containers in well-ventilated, unoccupied buildings
away from sparks or flames. Do not fill the fuel tank
while the engine is hot or running, since spilled fuel
could ignite if it comes in contact with hot parts or
sparks from ignition. Do not start the engine near
spilled fuel. Do not smoke while handling gasoline.
Never use gasoline as a cleaning agent.
Storage for 45 to 60 Days
Use the following storage procedure for equipment or
fuel that will be stored for more than 45 days and less
than 60 days:
Equipment - Empty the fuel tank and run the unit until
the fuel system is empty. When starting the unit after
storage, refill the fuel tank with freshly mixed gasoline
and oil.
Fuel - Do not use fuel that has been stored for more
than 60 days. Dispose the old fuel in a safe manner
and use a fresh mix.
Storage for More Than 60 Days
1. Drain all fuel from the fuel tank into an approved
fuel container.
2. Start the engine and run it until it stalls.
3. Allow the engine to cool. Remove the spark plug
and put about 1 oz. (39 ml) of any high quality
motor or 2-cycle oil into the cylinder. Pull the
starter rope slowly to distribute the oil. Reinstall
the spark plug.
4. Clean the unit and inspect for any loose or
damaged parts. Repair or replace damaged parts
and tighten loose screws, nuts, or bolts.
5. Store the unit in a dry, well ventilated area.
To Reactive Unit for Service
1. Remove the spark plug and drain the oil from the
cylinder by slowly pulling the starter rope.
2. Reinstall the spark plug.
3. Refuel the unit with a fresh gasoline/oil mixture.
Start engine in accordance with the Starting
Instructions.
SPECIAL TOOLS
In addition to typical hand tools, the following special
tools are required to properly service these engines:
• Clutch Tool, (Standard N28 Engines) P/N 147337
(Figure 1-11).
• Clutch Tool, (Professional N28 Engines)
(Figure 1 -12).
• Flywheel Holder, P/N 612470 (Figure 1- 13).
• 0-250 in•lb (0-28.1 N•m) Torque Wrench
(commercially available).
• Torx® Screwdriver or Bit Set (commercially
available).
• Two-stroke, Magnetic Pick-up Tachometer
(commercially available).
• Arbor or Hydraulic Press (commercially available).
• Bearing and Seal Pullers (commercially available).
• Hex Wrench Clutch Rotor Tool, P/N 180918.
• Flywheel Holding Tool, P/N 180918.
• 0-250 in•lb (0-28.1 N•m) Torque Wrench
(commercially available).
• Torx® Screwdriver or Bit Set (commercially
available).
• Two-stroke, Magnetic Pick-up Tachometer
(commercially available).
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GENERAL INFORMATION
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