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2. AIR CLEANER
a.
Clean sub-cleaner sponge every day or every eight hours of operation. More frequent cleaning
is recommended under very dusty conditions. Wash the sponge in liquid detergent and water.
Squeeze it to remove dirt and press it in a dry rag until it is completely dry. Saturate the sponge in
2 cycle oil or the equivalent. Squeeze it to distribute oil completery and to remove any excess oil.
Replace sponge and install cover. (Fig.20)
b.
The main cleaner sponge (carb side) should be cleaned and apply oil in the same way as
above-mentioned after every 50 hours of operation. More frequent cleaning may be required if
operating in extremely dusty conditions. (Fig.20)
3. FUEL FILTER
a.
Clean as necessary. After all fuel drained from tank, gently pry out fuel fillter with minus driver and
wash it thoroughly in gasoline. After washing push it into the same place as before. (Fig.21)
NOTE: If the filter is hard due to dust and dirt, replace it.
4. SPARK PLUG
a.
This unit uses a CHAMPION CJ6 or NGK BMR7A spark plug and gap should be .60mm (.023
in.). During nomal operation, electrodes will appear brown in color. If carbon and oil appear on the
electrode, plug should be cleaned with solvent or replaced. (Fig.22)
NOTE: In some areas, local law requires using a resistor spark plug to suppress ignition signals. If this
machine was originally equipped with ressistor spark plug, use same type of spark plug for
replacement.
5. CARBURETOR
a.
Fuel supply adjustments on the carburetor are pre-set at factory. Usually you don't have to adjust it.
b.
If you need an idle adjustment (T), turn idle screw clockwise for higher RPM and for lower RPM,
counterclockwise. (Fig.17)
NOTE: Carburetor adjustment needs the skill of experienced or well trained people. It is recommended
to take the unit to your nearest dealer.
Some models sold in areas with strict exhaust emission regulations do not have high and low
speed carburetor adjustments. Such adjustments may allow the engine to be operated outside
of their emission compliance limits. For these models, the only carburetor adjustment is idle
speed.
For models that are equipped with low and high speed adjustments; carburetors are preset at
the factory. Minor adjustments may optimize performance based on climate, altitude, etc. Never
turn the adjustment screws in increments greater than 90 degrees, as engine damage can result
form incorrect adjustment. If you are not familiar with this type of adjustment-seek assistance
from your Tanaka dealer.
6. GOVERNOR
a.
The engine speed governor is lubricated with #30 weight oil. The capacity is 0.5 fl. oz.(16 ml).
The level screw (Fig.23) should be checked after the first 20 hours of use and each additional 100
hours there after.
Fig. 19
Fig. 20
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Fig. 21
Fig. 22
Fig. 23
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