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7. MAINTENANCE
Warning: Only maintain the tiller when the tiller is cool and switched off.
a. Ensure that all the bolts and fixings of the tiller are fixed tightly, before operating and periodically after
one or two hours of usage.
b. Every 20 hours of usage add lubrication to the gear case and check the gear wheels conditions. Where
the gears are damaged contact your local Cobra dealer.
c. Engine maintenance:
- Spark plug, periodically clean or replace. Ensure the gap is 0.6 to 0.7mm, adjust as necessary.
-Air filter cleaning, clean or replace frequently to protect the engine:
Air filter and carburettor:
Cleaning the air filter:
- Remove the air cleaner cover by pulling the tab on side and
take out the 3 filter element.
- Use a detergent and warm water to clean the filter elements.
After cleaning, air dry the element completely and moisten with
a small amount of motor oil.
- Place the filter element into the air cleaner housing and press
the cover against the housing until it clicks.
-Idle Speed Adjustment:
Once the engine is warm then it is advised to check and adjust the idle speed. If the engine tends to stop at
idle speed, then increase the idle speed with the idle speed adjustment screw on the carburettor. Turn the
idle speed screw clockwise to increase idling speed.
If the tiller tines rotate even when idling, then slow the engine idle speed by turning the idle screw anti-
clockwise.
-Check the fuel and fuel filter for blockages each season. Contaminated fuel lines or filters will restrict fuel
flow and may prevent starting. Replace blocked fuel lines or filters.
- Check the exhaust condition and tighten fixings – replace the exhaust if damaged.
-Clean the air cooling vents around the engine to ensure the engine operates correctly and does not over
heat and become potentially dangerous.
-Every 100 hours of usage:
Check and clean the exhaust, tighten the screws and check the condition of clutch lining and drum. Ensure
the lining and drum are clean and oil/grease free, clean as necessary.
