Husqvarna CR 65 2012, Руководство по ремонту

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S.3
CR 65 2012
Workshop Manual Ed. 09-2011
FUEL SUPPLY
Carburettor setting
Original setting
The carburettor original settings are: 500 m altitude above sea level, temperature
of nearly 20 °C, main use off-road and possibility of using premium grade fuel
in Central Europe (RON 95, without lead), mixed with 2T oil. Oil-fuel mixture
ratio at 3% during running-in phase, at 2% after running-in.
GENERAL RULE:
high altitudes or temperatures
ð
lean mixture
low altitudes or temperatures
ð
rich mixture
– USE ONLY PREMIUM GRADE FUEL (NO. 95), MIXED WITH 2T
HIGH QUALITY ENGINE OIL. OTHER TYPES OF FUEL CAN
CAUSE DAMAGES TO THE ENGINE.
– FEW OR LOW QUALITY OIL CAUSES EARLY WEAR OF THE
ENGINE AND, IN EXTREME CASES, IRREPARABLE DAMAGES.
TOO MUCH OIL CAUSES EXCESSIVE SMOKE AND SOILS THE
SPARK PLUG AND THE EXHAUST VALVE.
– TO GET A LEAN MIXTURE, CAREFULLY REDUCE THE JETS
STEP BY STEP BY ONE NUMBER RESPECTIVELY TO AVOID
PISTON OVERHEATING AND SEIZURE.
WARNING: If, despite the setting change, the engine does not work properly,
check for mechanical faults or problems in the ignition system.
Main information about carburettor wear
Because of the engine vibrations the throttle valve, the floater taper needle,
and the main nozzle are subject to high wear. Wear causes carburettor mal -
functions (for example too rich mixture). Check and/or replace such parts
every 100 operating hours.
Carburettor settings
Summer Winter
Maximum jet 240 210
Minimum jet 40 40
Taper needle position 3rd notch 2nd notch
Air screw turns 3 (from fully closed) 2 (from fully closed)