Identification Of Faults; Troubleshooting - Stiga SP 375 Operator's Manual

MAINTENANCE AND STORAGE / TROUBLESHOOTING
LONG PERIODS OF DISUSE
IMPORTANT
the machine for a period of more than 2-3 months,
we recommend you do a few things before putting
it away. This will make it easier when you want to
use the machine again and will also prevent
permanent damage to the engine.
• Storage
Before putting the machine away:
– Unscrew the two nuts, remove the guard and
remove the chain and rod.
– Empty the oil tank, fill with about 100-120 cc of
specific liquid detergent and plug the cap.
– Fit the guard back on without tightening the nuts.
– Start the engine and keep it running until all de-
tergent is used.
– Start the engine and run it idle until it uses up all

9. TROUBLESHOOTING

PROBLEM
1) The engine will not
start or will not keep
running
2) The engine starts but
is lacking in power
3) The engine runs
irregularly and lacks in
power when revved
4) The engine gives off
an excessive amount of
smoke
5) No oil is released
If you are not going to use
LIKELY CAUSE
– Incorrect starting procedure
– Dirty spark plug or incorrect distance
between the electrodes
– Air filter clogged
– Antifreeze device is fitted incorrectly
(excluding C 46 - XC 246 - C 50 - CP 45
- A 455 - MC 846 models)
– Carburetion problems
– Air filter clogged
– Carburetion problems
– Dirty spark plug or incorrect distance
between the electrodes
– Carburetion problems
– Incorrect composition of the fuel mixture
– Carburetion problems
– Bad quality oil
– Lubrication holes are clogged
the fuel that is left in the tank and the carburettor.
– Remove the spark plug after the engine cools.
– Pour a teaspoon of (new) 2-stroke engine oil into
the spark plug slot.
– Pull the starter grip several times to deliver oil
to the cylinder.
– Replace the spark plug with the piston in the
dead end upper position (visible from the spark
plug slot when the piston is at maximum stroke).
• Restarting work
When you wish to start using the machine again:
– Remove the spark plug.
– Pull the starter rope a few times to eliminate
excess oil.
– Check the spark plug as described in chapter
"Checking the spark plug".
– Prepare the machine as indicated in the para-
graph entitled "Preparing for work".
SOLUTION
– Follow the instructions (see chapter 6)
– Check the spark plug (see chapter 8)
– Clean and/or replace the filter
(see chapter 8)
– Check the assembly position
(see chapter 6)
– Contact your dealer
– Clean and/or replace the filter
(see chapter 8)
– Contact your dealer
– Check the spark plug (see chapter 8)
– Contact your dealer
– Prepare the fuel mixture according
to the instructions (see chap. 5)
– Contact your dealer
– Empty the tank, clean it and pipes with
liquid detergent and change the oil
– Clean
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