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The used oil must be given to the proper collecting
centres or to a SELVA service point.
Spark-plug
The spark-plug must be often inspected because heat and
deposits affect its efficiency so that the performance of the
motor will be affected too.
The inspection of the spark-plug must be done when
the engine is not running and it has cooled down.
It is very important to check, that the part made of
porcelain is not damaged because this could allow
external sparks, which could lead to explosion or fire.
To remove the spark-plug use the supplied spanner; using an
abrasive brush, remove any deposits, then check the wear
condition and the spark-plug gap ( the gap must be 0,6 mm, to
measure it use a thickness gauge ) .
If the spark-plug is too badly worn you must replace it with a
new one which must agree with the characteristics listed in the
specifications chart.
The spark-plug torque is 20 Nm ( ~ 2. kgm). If a
torque-wrench is not available, you can obtain a
good estimate of the correct torque turning the spark-
plug completely by hand and then turning it with the
spanner, a new spark-plug must be turned ~ 90° and
an old one 15° ÷ 20°.
Replace the spark-plug cap, checking that it is correctly fitted
and then replace the top cowling.
Sacrificial anode.
To protect the motor against electrochemical corrosion, due to
the presence in its structure of many different materials, a
sacrificial anode has been applied.
The anode will be subject to a strong corrosion, so you have to
remove the scales from the surfaces of the anode periodically.
Failure to clean it, will affect its effectiveness.
Do not paint the anode, for this would render it
ineffective.
When the corrosion compromise its functionality, you have to
replace it.
Motor oil filter replacement
The motor is equipped with a filter placed in the lubrication
lead.
the occlusion of the filter could compromise the
fonctionemment of the engine and compromise seriously the
efficiency
To replace the filter, motor must be switch off and without oil.
Unscrew the filter and replace it with a new one Picture No 61.
The used filter oil contain exaust oil and must be
given to the proper collecting centres or to a SELVA
service point.
22
Picture No. 59.
Picture No.60.
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