9.1
Section 9
Disassembly
9
Section 9
Disassembly
General
Clean all parts thoroughly as the engine is
disassembled. Only clean parts can be accurately
inspected and gauged for wear or damage. There
are many commercially available cleaners that will
quickly remove grease, oil, and grime from engine
parts. When such a cleaner is used, follow the
manufacturer’s instructions and safety precautions
carefully.
Make sure all traces of the cleaner are removed before
the engine is reassembled and placed into operation.
Even small amounts of these cleaners can quickly
break down the lubricating properties of engine oil.
Typical Disassembly Sequence
The following sequence is suggested for complete
engine disassembly. The sequence can be varied to
accommodate options or special equipment.
1. Disconnect spark plug lead.
2. Turn fuel shut-off valve to OFF position.
3. Drain oil from crankcase.
4. Remove muffl er and heat shield assembly.
5. Remove air cleaner assembly.
6. Remove fuel tank.
7. Remove external thro le, governor and choke
linkage.
8. Remove carburetor.
9. Remove retractable starter.
10. Remove blower housing and shields.
11. Remove electrical wiring, micro shut down
switch & bracket, and fuel tank brackets.
12. Remove control panel and electric starter.
13. Remove valve cover/breather, rocker arms, push
rods and cylinder head assembly.
14. Remove valves.
15. Remove ignition module.
16. Remove fl ywheel.
17. Remove stator.
18. Remove closure plate.
19. Remove balance sha .
20. Remove camsha and valve tappets.
21. Remove piston, connecting rod, and cranksha .
22. Remove Oil Sentry™ system.
23. Remove governor assembly.
24. Remove crankcase and closure plate seals and
bearings.
Disconnect Spark Plug Lead
1. Disconnect the lead from the spark plug. See
Figure 9-1.
NOTE: Pull on boot only, to prevent damage to spark
plug lead.
Figure 9-1. Disconnect Spark Plug Lead.
Turn Fuel Shut-Off Valve to OFF Position
1. Push fuel shut-off lever to the le to close the fuel
valve. See Figure 9-2.
OFF
Fuel
Shut-Off
Valve
Figure 9-2. Shut-Off Fuel Valve.
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