®
Fig 25
brush may be useful to access the spaces between the teeth).
Lightly spray the metal parts of the Uni-coupling with a high quality Silicone Spray
Lubricant as detailed in the Maintenance Summary Chart. Avoid spraying rubber components.
8. Recoil Starting System
The ventilation slots should be kept clean and free from any obstructions. Remove any foreign
matter from the ventilation slots. Do not use sharp, pointed instruments pushed through the
slots in an attempt to dislodge any obstructing material.
LONG TERM STORAGE
If your EVO-SYSTEM Engine is not going to be used for a period of 4 months or more (e.g. over
the winter period) the operator should consider preparing it for long term storage. This will keep
the engine in optimum condition for re-commissioning when required.
• Drain all the fuel from the fuel tank and carburetter into a suitable approved container.
• A drain plug can be found underneath the carburetter float bowl. (Fig. 25)
• Replace the drain plug when all the fuel has been removed.
• Remove the spark plug.
• Pour approximately one tablespoon of clean engine oil into the spark plug hole.
• Ensure that the engine ignition switch is in the 'OFF' position.
• Gently pull the recoil starter a few times.
• Replace the spark plug.
• Gently pull the recoil starter until resistance is felt (this will mean that the piston is on its
compression stroke with both valves closed). Stop pulling the recoil starter.
• Store the engine in a secure, dry and well ventilated location, under a cover to prevent
dust, debris etc from settling on the machine.
218
Note: The Plastic ring is not 'handed' and can fit onto the
flange either way round.
• Check the installation.
7. Uni-coupling Clutch
Drive from the engine to the accessory is transmitted by a 12
toothed sprung loaded dog clutch coupling. This should be kept
clean and the teeth regularly inspected for wear (preferably
at every connection or disconnection). Any debris or dirt etc
that becomes lodged between or on the teeth could cause
premature wear and so should be removed as soon as possible.
Clean with a slightly damp soft cloth (a pipe-cleaner or small
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