20
WARNING
If coolant gets on the tires will make them very slippery and can cause an
accident.
- Visually inspect the old coolant. If whitish spots are observed in the liquid
is a clear indication that the aluminum parts in the cooling system are cor-
roded. If the coolant is brown, iron or steel parts of the system are rusting.
In both cases,
fl
ush the cooling system.
- Check the cooling system for damage, leaks or missing gaskets in the
cooling system.
- Install the water pump cover drain screw with the speci
fi
ed torque values
shown in the table. Always replace the gasket with a new one.
Drain plug tightening torque
Water pump screw: 9 Nm
- Fill the radiator up to the edge of the cap with coolant, and install the
radiator cap.
- Inspoect the cooling system for leaks.
- Start and warm up the engine, then stop the engine.
- Check the coolant level after the engine cools down. Add coolant up to
the cap.
SPARK PLUG
The standard spark plug is a shown in the table and should be tightened to
27 Nm.
Standard Spark Plug
125 cc =
Denso W27ESR-U 0,7-0,8 mm O NGK BR9EG
200 / 250 / 300 cc =
Denso W24ESR-U 0,7-0,8 mm O NGK BR8EG
The spark plug should be removed periodically to check its gap. If the plug
is oily or has carbon deposits, clean it with a sandblaster. After removing the
abrasive particles, the spark plug must be cleaned using a wire brush or a
similar tool. Measure the gap with a feeler gauge, if incorrect adjust the gap
by bending the side electrode. If the spark plug electrodes are corroded or
damaged, or if insulator is cracked, replace the plug.
NOTE
Inspect every 30 hours and change every 60 hours.
To
fi
nd out whether the right heat range plug is being used, remove it and
inspect the ceramic insulator around the center electrode. If the ceramic is
light brown, the spark plug is correctly matched to engine temperature. If the
ceramic is whie, the spark plug should be replaced with the next colder plug.
If the ceramic is black, the spark plug should be replaced with the next hotter
plug.
NOTE
If the engine performance drops, replace the spark plug
fi
rst to recover
its output.
TRANSMISSION
For the transmission and clutch to function properly, maintain the transmis-
sion oil level at the optimum level and change it periodically. A motorcycle
with insu
ffi
cient transmission oil, deteriorated or contaminated can acceler-
ate wear and tear and cause transmission damages.
Summary of Contents for TZ 125 2011
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Page 64: ...64 WIRING DIAGRAM 125cc...
Page 65: ...65 WIRING DIAGRAM 200cc 250cc 300cc electric starter...
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Page 72: ...CODE CATALOGUE 02645005...