SPEC
MAINTENANCE SPECIFICATIONS
2-4
Model CS50 CS50Z
Automatic centrifugal clutch:
Clutch shoe thickness 2,0 mm
<Limit> <1,0 mm>
Clutch shoe spring free length 29,9 mm
Clutch - in revolution 3.350 - 3.850 r/min. 3.950 - 4.450 r/min.
Clutch - stall revolution 5.200 - 6.000 r/min. 6.900 - 7.700 r/min.
V-belt:
V-belt width 16,5 mm
<Limit> <15,7 mm>
Transmission:
Main axle eccentricity limit 0,08 mm
Drive axle eccentricity limit 0,08 mm
Pedal starting:
Type Ratchet
Strength of pedal spring 150 ~ 250 g
Air filter oil grade: For foam air filter or air-cooled 2-stroke
motor oil
Carburetor:
Type / Manufacturer / Amount PHVA12ZS/1 PY12/1 PHVA12ZS/1
DELL’ORTO GURTNER DELL’ORTO
Main jet / Model (M.J.) #65 #62 #65
Jet needle (J.N.) A20-3/5 B10A-2/3 A35-4/5
Main air jet (M.A.J.) ø 2.5 ø 2.0 ø 2.5
Pilot jet (P.J.) #36 #38 #36
Pilot screw (P.A.S.) 2 - 2
1
/
4
1
3
/
4
- 2 1
3
/
4
±
1
/
8
Valve seat size 1.2 1.4 1.2
Engine idling speed 1650 ~ 1950 r/min
Starter jet #50 #42 #50
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