11. Maintenance
9. Engine Break-In
10. Operation
No specific break-in is required.
The engine is gradually broken-in as it is used and the output is also gradually
increased.
For checking the whole conditions of the airplane, boat and helicopter, it may be better
to operate the engine at slow RPM for 1/3 tank and mid-high RPM for 2/3 tank.
• The engine is already tuned up to get high performance, and needs correct
maintenance to keep such high performance.
• The details for operation as complete product may be provided from complete
product manufacturer.
•Always keep well maintenance according to the Maintenance clause described in
this owner's service manual.
10
1) MAINTENANCE CHART
Before Every Every
Items Action Use 25 hours 100 hours Note
Leakage,
Check ✔✔✔
Damage/Crack
Idling Speed Check/Adjust ✔✔✔
Air-cleaner (PUH) Check/Cleaning ✔✔✔Replace if necessary
Spark Plug(gap) Check/Adjust ✔✔ ↑
Cylinder(barrel) Check/Cleaning ✔✔ ↑
Piston, Ring Check/Cleaning ✔✔ ↑
Muffler & Bolt Check/Cleaning ✔✔✔ ↑
Bearings Check/Cleaning ✔✔ ↑
Crank Shaft Check/Alignment ✔ ↑
Rotor Check ✔✔ ↑
Propeller Hub (PU) Check/Alignment ✔✔ ↑
Water Jacket (PUM) Check/Leakage ✔✔✔ ↑
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