Jonsered 2095 Workshop Manual

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4
Fuel system
The following rpm are recommended:
Max overspeed
Model During running in After running in*
625 11.800 – 11.900 12.500
630 11.700 – 11.900 13.000
670 12.700 – 12.900 13.500
2036 12.200 – 12.400 13.000
2040 12.200 – 12.400 13.000
2041 11.700 – 11.900 12.500
2045 11.700 – 11.900 12.500
2050 11.700 – 11.900 12.500
2054 12.200 – 12.400 13.000
2055 13.700 – 13.900 14.500
2077** 12.700 – 12.900 13.500
2083 12.700 – 12.900 13.500
2095 12.200 – 12.400 13.000
* The speed refers to standard bar lengths and Jonsered two-
stroke oil.
When using a longer bar or another quality of two-stroke oil
use the recommended running in speed.
** Digital ignition system with speed limiter at 13.500 rpm.
Idling speed = 2.500 rpm.
NOTE!
The maximum recommended rpm must not be exceeded.
Check the rpm with tachometer 502 71 14-01.
● Carefully screw in (clockwise) the L and H nozzles to the
bottom and then unscrew (anti-clockwise) the nozzles one
turn. The carburettor now has the setting H = 1 and L = 1.
Use special screw driver 501 60 02-02.
● Start the engine and run warm for 10 minutes.
NOTE!
If the cutting equipment rotates at idling speed the T-screw
should be turned anti-clockwise until it stops.
Low-speed nozzle L
Set the highest idling speed by slowly screwing the low-speed
nozzle clockwise respectively anti-clockwise. When the highest
revs have been found the L-nozzle is screwed anti-clockwise 1/
4 turn.
High-speed nozzle H
The high-speed nozzle H influences the power output of the
engine and the speed. A too lean set high-speed nozzle H (the
H-nozzle screwed in too far) gives too little fuel to the engine and
will result in damage to the engine.
Run the engine at full throttle for about 10 seconds. The H-
nozzle is correctly adjusted when the engine ”putters” slightly.
If a lot of smoke comes from silencer at the same time as the
engine ”putters” a lot the setting is too ”rich”. Turn the H-nozzle
clockwise until the setting sounds right.
NOTE!
For optimum setting a tachometer should be used.
The recommended maximum overspeed should not be
exceeded.
Idling screw T
Let the engine idle for about 30 seconds or until the speed has
stabilised. Adjust the set screw for the idling speed until the
engine runs at idling speed without stopping.
● Turn the screw clockwise if the engine stops.
● Turn the screw anti-clockwise to reduce the speed.
Correctly adjusted carburettor
A correctly adjusted carburettor implies that the engine
accelerates without hesitation and does not putter at full throttle.
● A too lean set L-nozzle implies that the engine can be difficult
to start and gives poor acceleration.
● A too lean set H-nozzle gives a lower output, poor accelera-
tion and/or engine damage.
● An over rich setting of both the L- and H-nozzles gives
acceleration problems or an excessively low working speed.
502 71 14-01
501 60 02-02

Jonsered 2095 Specifications

General

Brand	Jonsered
Model	2095
Category	Chainsaw
Language	English