Filter
Top Products
Carburetor
1111
NOTE! Do not attemptto adjustthe needlesbeyondthe stops
as damagecan occur.
Low speed needle L
Try to find the highest idling speed by turning the low speed
needle L within the limits of the limiter cap. When the highest
speed has been found, turn the low speed needle L 1/16 turn
counter-clockwise or to the limiter cap stop.
NOTE! If the chain rotates in the idling position, turn the idling
speed screw counter-clockwise until the chain stops.
1
+ 1/4
#@~
rpm
Ulmln
trlmn
olmln
rlmin
o
.....
,.
‘,
#
‘.
,“
‘.
..
‘.
,’
~
,’
:67
@
‘%5
High speed needle H
Th= high speed needle H influences the power of the saw. A
too lean adjusted high speed needle H (high speed needle H
closed too much) gives overrevs and damages the engine. let
the saw run at full speed for about 10 seconds. Thereafter,
turn the high speed needle H 1/16 turn counter-clockwise. Let
the saw run again at full speed for about 10 seconds and note
the difference in the engines sound. The high speed needle H
is correctly set when the saw “4-cycles” a little. If the saw
“whistles” the setting is too lean. If there is too much exhaust
gas at the same time as the saw “4 cycles” much, the setting
is too rich, Turn the high speed needle H until the setting
pm
JImin
rlmn
)Imin
Imin
sounds correct.
If the engine does not operate properly within the limiter cap ~.~
range, do not use the unit. Take it to your Authorized Service
Dealer
@
MOTE!For optimum setting of the carburetor, contact a
qualifiedservicing dealer who has a revolution counter at his
~isposal.The maximum speed recommended, 13000 rpm,
nust not be exceeded.
I
I
I
,
,
,
r
—
Final setting of the idling speed T
Adjust the idling speed with the screw T, If it is necessary to
readjust, first turn the idle speed adjusting screw T clockwise,
until the chain starts to rotate.
Then turn, counter-clockwise until the chain stops. A correctly
adjusted idle speed setting (approx. 3000 rpm) occurs when the
engine runs smoothly in every position.
It should also be good margin to the rpm when the chain starts to
rotate.
CAUTION! contact your servicing dealer, if the idle speed
setting cannot be adjusted so that the chain stops. Do not
use the saw until it has been properly adjusted or repaired.
CARBURETORMIXTURE
NEEDLESWITHLIMITERCAPS
LH
m
Correctly adjusted carburetor
A
correctly adjusted carburetor means that the saw accelerate
without hesitation and the saw 4-cycles a little at max speed.
Furthermore, the chain must not rotate at idling. A too lean
adjusted low speed needle L may cause starting difficulties and
bad acceleration.
A too lean adjusted high speed needle H gives lower powerless
capacity, bad acceleration and/or damage to the engine.
A too rich adjustment of the two speed needlea L and H gives
acceleration problems or too low working speed.
17