General failures’ analysis
GS35 – GS350 – MT350 – MT3500 chainsaws
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Idling adjustment (L)
1.
Start the unit and warm up for 60 seconds. If the engine stop, readjust T screw
2.
Close the L jet until the maximum number of rpm is reached (stop
rotating the jet before the rpms drop or
the unit stalls);
3.
Adjust the T screw until the unit reaches an idle rpm between:
3700 and 4200 RPM
4.
Open the jet L until the rpm go from
3700/4200 to 2800/3100 RPM
Maximum adjustment (H)
5.
Adjustment of the jet H for wide open throttle operation whit bar (standard 16”
-
41 cm)
and chain:
10600 RPM with the new motor and
12100
RMP
with run-in engine
e) Carburetor tuning
Correct tuning of the
EURO 1 (direttiva 97/68/CE + 2002/88/CE) and EURO 2 (direttiva 97/68/CE + 2002/88/CE
+ 2004/26/CE).
The jets have the following factory registration:
L = 1+3/8±1/4 H=1±1/4
When, following a repair or engine overhaul, you are obliged to re-tune the carburetor to its’
original setting
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