Varan TT-HT230B, Operating Instructions Manual

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Engine repairs/failures
Repairs require special professional knowledge and may only be executed by authorised service centres. Any unauthorised
intervention may damage the appliance and put your safety at risk.
Engine failures
Failure Cause Remedy
Engine not starting 1. Tank is empty
2. Engine is flooded
3. Spark plug is dirty (carbon remains on
electrodes). Too big distance between
electrodes.
4. Carburettor is dirty, carburettor
nozzles are dirty.
5. Plug connection is defective, spark-
plug cable is defective
6. No ignition spark
1. Full tank to be filled up
2. Ease up on the gas, start a couple of times, remove
the spark plug if necessary, clean and dry it
3. Clean the spark plug, check the spark thermal value
and replace it if necessary, adjust 0.6-0.7 mm
4. Clean or blow the carburettor
5. Replace it
6. Check the short-circuiting button, cable and ignition
module and replace them if necessary, adjust the
distance (0.3-0.4 mm).
Engine running idle
too fast 1. Cold engine 1. Warm up slowly or turn down the choke a little bit.
Engine not achieving
the maximum output 1. Spark plug is dirty (carbon remains on
electrodes). Too big distance between
electrodes.
2. Carburettor is dirty, carburettor
nozzles are dirty.
3. Air filter is dirty
4. Exhaust, cylinder exhaust port
5. Untight gasket in the engine case
6. Worn-out cylinder, piston/piston rings
7. Wrong fuel mixture (too much oil)
8. Defective ignition
1. Clean the spark plug, check the spark thermal value
and replace it if necessary, adjust 0.6-0.7 mm
2. Clean or blow the carburettor
3. Clean it
4. Remove and clean the exhaust, remove any carbon
remains.
5. Replace it
6. Replace the cylinder, piston or piston rings; cylinder
needs to be ground down, fit in a bigger piston.
7. Fill up as instructed
8. Adjust the ignition module distance (0.3-0.4 mm)
Engine not stopping 1. Light grey spark plug is worn (melt
drops)
2. Carbon remains in the combustion
space
1. Fit a higher thermal value spark plug
2. Clean the cylinder head, piston top and cylinder
channels.
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