100 Hour Boat Service
Your engine should be serviced at least every 100 hours of operational use to prolong its life and ensure it is reliable and running at optimum efficiency.
- Fuel filter - strip and clean.
- Check operation of tilt mechanism.
- Check adjustment of gear/throttle cables and lubricate all linkages as required.
- Lubricate propeller shaft.
- Bleed auto lube pump.
- Ignition timing - check/adjust linkages as required.
- Carburetor pilot screws check/adjust.
- Strip and check water pump.
- Change gear oil - check for water ingress through seals.
- Spark plugs - clean/replace as required.
- Check flywheel nut torque/torque cylinder head.
- Recoil starter - check condition of rope/lube as required.
- Check operation of on/off neutral interlock switches etc.
- During test run of engine check for smooth operation of all controls and for correct starting both hot and cold. Check for correct idle speed when hot and for smooth pick up from idle. Where possible check to ensure engine achieves maximum RPM.
- Lubricate pivot shaft/all linkages/clamp screws etc.
- Check condition of anode/trim tab, replace if required.
- Drain down carburetors.
- Change oil, filters, and check valves on 4 strokes.
N.B. If auto lube models are laid up for the winter the system should be drained and refilled and the pump bled before re-using the engine. It is also better to run the engine for 10 hours on a 50:1 petrol mix after several months storage.