Jonsered 2095 Workshop Manual

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4
502 50 38-01
Fuel system
The pumping section
This pumps fuel from the tank to the
carburettor.
Disassembling the carburettor
Remove the metering diaphragm and
check for damage.
Replace if necessary.
In the event of leakage - dismantle the
needle valve.
Pressure test the metering section.
The pumping section
The pump diaphragm which pumps fuel
from the tank to the carburettor’s mete-
ring section is placed here.
The diaphragm is activated by the
pressure variations in the engine’s
crankcase via an impulse channel.
If the channel is blocked, e.g. by grease
or an incorrectly positioned gasket, the
pump will not function and it will not be
possible to start the engine.
Disassembly of the carburettor
Remove the 4 screws which hold the
metering diaphragm cover and lift off the
cover.
Carefully remove the metering diaphragm
and gasket.
Check the diaphragm for holes and wear
on the pin.
Replace the diaphragm if necessary.
Connect pressure tester 502 50 38-01 to
the fuel pipe nipple.
Submerge the carburettor in a basin
containing petrol in order to more easily
discover leakage.
Pressure test with 50 kPa.
No leakage is permissible.
If leakage occurs dismantle the needle
valve.
Unscrew the screw and lift off the lever,
shaft, needle valve and spring.

Jonsered 2095 Specifications

General

Brand	Jonsered
Model	2095
Category	Chainsaw
Language	English