NOTE: Pay atten-
tion to the correct
direction of the
saw chain.
4. Fit the chain cover to the power unit and
fasten the nuts to finger tightness.
5. While holding up the tip of the bar adjust
the chain tension by turning the tensioner
screw until the tie straps just touch the bottom
side of the bar rail.
6. Tighten the nuts se-
curely with the bar tip
held up (12 ~ 15 Nm).
Then check the chain
for smooth rotation
and proper tension
while moving it by hand. If necessary, readjust
with the chain cover loose.
7. Tighten the tensioner screw.
NOTE: A new chain will expand its length in
the beginning of use. Check and readjust the
tension frequently as a loose chain can eas-
ily derail or cause rapid wear of itself and the
guide bar.
FUEL AND CHAIN OIL
FUEL
WARNING: Gasoline is very flammable.
Avoid smoking or bringing any flame or sparks
near fuel. Make sure to stop the engine and al-
low it to cool before refueling the unit.
Select outdoor bare ground for fueling and
move at least 3 m (10 ft) away from the fueling
point before starting the engine.
· Mix a regular gasoline (leaded or unleaded,
alcohol-free) and a quality-proven motor oil
for air cooled 2 cycle engines.
· Do not use BIA or TCW (2-stroke-cooling type)
mixed oil.
14
• Recommended mixing
ratio.
Gasoline 25:Oil 1
- Exhaust emission are controlled by the
fundamental engine parameters and com-
ponent (eq., carburation, ignition timing
and port timing) without addition of any
major hardware or the introduction of an
inert material during combustion.
- These engines are certified to operate on un-
leaded gasoline.
- Make sure to use gasoline with a minimum
octane number of 89RON (USA/Canada: 87AL).
- If you use a gasoline of a lower octane value
than prescribed, there is a danger that the
engine temperature may rise and an engine
problem such as piston seizing may conse-
quently occur.
- Unleaded gasoline is recommended to reduce
the contamination of the air for he sake of
your hearth and the environment.
- Poor quality gasoline or oils may damage seal-
ing rings, fuel lines or fuel tank of the engine.
HOW TO MIX FUEL
WARNING: Pay attention to agitation.
1. Measure out the quantities of gasoline and
oil to be mixed.
2. Put some of the gasoline into a clean, ap-
proved fuel container.
3. Pour in all of the oil and agitate well.
4. Pour in the rest of gasoline and agitate
again for at least one minute. As some oils may
be difficult to agitate depending on oil ingre-
dients, sufficient agitation is necessary for the
engine to last long.
Be careful that, if the agitation is insufficient,
there is an increased danger of early piston
seizing due to abnormally lean mixture.
5. Put a clear indication on the outside o f the
container to avoid mixing up with gasoline or
other containers.
6. Indicate the contents on outside of contain-
er for easy identification.
FUELING THE UNIT
1. Untwist and remove the fuel cap. Rest the
cap on a dustless place.