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4. MAINTENANCE
4.1.
GENERAL MAINTENANCE SCHEDULE.
WARNING! All maintenance work is carried out when the engine is stopped. If the engine must run, ensure that the working area is
well ventilated. Exhaust gases contain Carbon Monoxide; exposure to this toxic gas can cause loss of consciousness and can be fatal.
WARNING! If the engine has just been running, the exhaust will be very hot, take care not to touch it.
Ensure the spark plug HT lead has been disconnected prior to commencing maintenance.
The oil, air filter and spark plug must be changed regularly. All other maintenance must be carried out by qualified persons, contact your
local Sealey service agent.
Items
Remarks
Adjust gap
Spark Plug
Replace if necessary
Check oil level
Engine Oil
Drain and replace
Clean
Air Filter
Replace if necessary
Check and clean
Fuel Bowl
Check and adjust
Valve Clearance
when engine is cold
Check for damage
Fuel Line
Replace if necessary
Check gasket
Replace if necessary
Exhaust System
Check exhaust
Replace if necessary
Carburettor
Check choke
Check fan for
Cooling System
damage
Check starter
Starting System
operation
Increase frequency if
Decoking
necessary
Check for damage,
Fittings/Fasteners
Tighten if necessary
4.2.
MAINTAINING THE AIR FILTER.
Note: If the air filter is dirty, air passing towards the carburettor will be restricted. To avoid the carburettor malfunctioning,
clean the air filter regularly. Clean more often when the engine is used in extremely dusty conditions.
WARNING! Never use fuel or solvent to clean the foam element. This can cause a fire or an explosion.
4.2.1. Unclip the securing clips and remove the air filter cover.
4.2.2. Check the element for tears or holes and replace if damaged.
4.2.3. Clean the element using compressed air. Replace the element if it is very dirty.
4.2.4. Wash the foam element in household detergent diluted in warm water, rinse with plenty of water and dry thoroughly.
4.2.5. Drip a few drops of clean engine oil into the foam element and squeeze out to remove any excess oil.
Note: The engine will start smoking during the first start up if too much oil is left on the foam.
4.2.6. The refitting procedure is the reverse of the above.
4.3.
CLEANING THE FUEL TAP.
4.3.1. Close the fuel tap.
4.3.2. Remove the bowl from underneath the fuel tap (10mm spanner required).
4.3.3. Remove any debris from the bowl.
4.3.4. Dry thoroughly and refit ensuring the bowl is fully tightened.
4.3.5. Open the fuel tap and check for leaks, refit bowl if necessary.
4.4.
MAINTAINING THE SPARK PLUG.
WARNING! If the engine has just been running, the exhaust and spark plug will be very hot. Allow to cool.
WARNING! The spark plug must be correctly tightened. If the plug is not well tightened, it can overheat and damage the engine.
Note: To ensure that the engine performs correctly, the spark plug must not have any deposits on it and its gap must be correct.
4.4.1. Remove the spark plug cap and the spark plug using the spark plug wrench supplied.
4.4.2. Inspect the spark plug and discard it if the electrodes are worn or if the porcelain is cracked or scaled. If the spark plug is to be
re-used, clean with a wire brush.
4.4.3. Measure the electrodes gap using a feeler gauge. The gap must be between 0.7mm and 0.8mm. Adjustment of the gap is
achieved by bending the side electrode.
4.4.4. Check the spark plug washer is in good condition and screw the plug in by hand to avoid cross threading the threads.
4.4.5. Once the spark plug is installed, tighten it using a spark plug wrench to compress the washer.
Note: In the case of a new spark plug being fitted, screw it in by hand and then tighten it by 1/2 turn with a spark plug wrench to
compress the washer. If the spark plug has already been used, screw it in by hand and only tighten it by 1/8 to 1/4 turn to
compress the washer.
© Jack Sealey Limited
Daily
1st Month
(pre-operation)
(or 20Hrs)
Original Language Version
3 Months
6 Months
(or 50 Hrs)
(or 100 Hrs)
12 Months
(or 300 Hrs)
G2300.V3 Issue: 1 - 27/08/13
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