Check the spark plug(10) for build up of
carbon and the gap between electrodes.
Take the corrective action below if needed.
Unplug the spark plug lead
(10)
and remove
the plug using the supplied wrench.
Clean the electrode with a wire brush until it is
restored to its original metal colour.
Check the gap between electrodes is
0.7- 0.8mm (0,028-0.031”) with a suitable gauge
Return the spark plug
(10)
to the engine and
refit lead.
1.
2.
3.
4.
Check after 50 Hours Normal use
(b)
Spark Plug
Troubleshooting : The Engine
- 10 -
PLUG GAP - 0.7 - 0.8mm
- 0.028 - 0.031”
Remedy
1. Tighten spark plug
2. Tighten cyl. head bolt
3. Replace gasket
4. Pull recoil starter harply
5. Clean fuel tank
6. Clean fuel line
7. Fill fuel tank
8. Open fuel tap
9. Clean spark plug
10. Replace spark plug
11. Contact Clarke Service
Department
12. Check fuel
13.
Contact Clarke Service
Department
Problem
Will not Start
Will not start or Low output
Erratic performance
Probable Cause
Loose spark plug
Loose cylinder head bolt
Damaged head gasket
Insufficient starting pull
Dirt in fuel tank
Clogged fuel line
No fuel
Fuel tap closed
Tarnished spark plug
Damaged spark plug
Faulty magneto or
carburettor settings
Improper fuel
Overheating
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