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General Information
Specifications - General
Items CX50 SR
Dimensions
Wheelbase 39” (991mm)
Wheel size 10” (254mm) rear, 12” (305mm) front
Seat height 26” (660mm)
Engine
Type 2-stroke, single cylinder, reed valve
Cooling system Liquid-cooled
Coolant Bel Ray Moto Chill
Displacement 49.8 cc
Bore and stroke 39 mm x 41.7 mm
Ignition system PVL Analogic
Spark plug Autolite – XS61 & 4261
Gap 0.023” – 0.025” (0.58 – 0.64 mm)
Ignition timing 0.035” (0.9 mm) Before Top Dead Center (BTDC)
Fuel type High octane pump gasoline
Premix Oil type
Bel-Ray H1-R
Premix oil ratio after break-in
40:1 to 50:1
Carburetion 19 mm Dell’Orto
Slow (Pilot) Jet / Main Jet 55 / 93
Needle W7-2
Needle Clip Position 2
nd
slot from top of needle
Float Height 16mm + 0.5mm (0.63” + 0.020”)
Transmission
Speed Single
Final drive ratio 15/38 T
Chain 100 links 420
Transmission / clutch oil type
Cobra Venom 3 Shoe Clutch Milk
Quantity 300ml (10oz)
Chassis
Front tire 2.50 (60/100) - 12"
Pressure 16 psi minimum
Rear tire 2.75 (80/100) - 10"
Pressure 16 psi min.
(20 psi for hard pack or rocky conditions)
Front fork CARD 32mm USD Fully Adjustable w/ Smart Leg
Fork oil type 2.5wt Bel-Ray Fork Oil
Fork oil amount 155 ml
Std settings Smart leg: 1.5 out, Compression and rebound 2 out
Rear shock (std. settings) Compression: Low 12 out, High 15 out
Rebound 16 out, Race sag 75mm
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