Buffalo Tools MOTOR25, Instruction Manual

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2. Verify whether the idle speed is set to specification. Idle speed
：
1,900 ± 100 RPM
Correct idling speed inspection is only possible if the engine is fully warmed up. If not warmed up fully,
the idle speed will measure higher than normal.
Changing Engine Oil
Avoid draining the engine oil immediately after stopping the engine. The oil is hot and should be handled
with care to avoid burns. The outboard motor is securely fastened to the transom or a stable stand.
Change the engine oil after the first 10 hours of operation, and every 100 hours or at 6-month intervals
thereafter. Change the engine oil when the oil is still warm.
1. Put the outboard motor in an upright position (not tilted).
2. Prepare a suitable container that holds a larger amount than the engine oil capacity. Loosen and
remove the drain screw while holding the container under the drain hole. Then remove the oil filler cap.
Let oil drain completely. Wipe up any spilled oil immediately.
3. Put a new gasket on the oil drain screw. Tighten the drain screw.
4. Add the correct amount of oil through the filler hole. Install the filler cap.
5. Start the engine and make sure that there are no oil leaks.
6. Turn off the engine and wait 3 minutes. Recheck the oil level using oil level check window to be sure
the level falls between the upper and lower marks.
The oil should be changed more often when the engine is operated under adverse conditions such as
extended trolling.
Checking wiring and connectors
Check that each grounding wire is properly secured and each connector is engaged securely.
Checking for leakage
Check that no exhaust or water leaks from the joints between the exhaust cover, cylinder head, and
body cylinder. Check for oil leaks on the around the engine.