12
CHECKING OIL SUPPLY
After starting the engine, run the chain at medium speed and observe if chain oil is sprayed
off (Fig.12).
First switch off the engine, wait for the chain to stop and then remove the spark plug wire
before adjusting the chain oil flow.
The chain oil flow-rate can be changed by adjusting the screw in the hole on bottom of the
clutch side (Fig.13). Adjust according to your work conditions.
NOTE
The oil tank should become nearly empty by the time fuel is used up. Be sure to refill the oil
tank every time when refuelling the unit.
ADJUSTING CARBURETOR (REFER TO FIGURE 14)
The carburettor on the chain saw has been factory adjusted, but may require fine turning due
to change in operating conditions.
Before adjusting the carburettor, make sure you have clean air/fuel filters and fresh, properly
mixed fuel.
Note: Be sure to adjust the carburettor with the bar chain attached
When adjusting, take the following steps:
1. Stop engine and screw in both H and L needles clockwise until they stop. Do not force
them.
2. Set the needles back the number of turns as shown below:
3.
H needle: 1⅜ turns
4. L needle: 1¼ turns
5. Start engine and allow it to warm up at half-throttle.
6. Turn L needle slowly clockwise to find a position where idling speed is maximum, then
set the L needle back a quarter (1/4) turn counter clockwise.
7. Turn idle adjusting screw (T) counter clockwise until the saw chain does not turn. If
idling speed is too slow, turn the screw clockwise.
8. Make a test cut and adjust the H needle for best cutting power, not for maximum
speed.
Figure 13
Chain oil adjusting
screw
Key:
L = L needle
H = H needle
T = Idle adjusting screw
Figure 14
T
H
L
