Specifications

4
General Information
Specifications - General
Items
CX50 JR
Dimensions
Wheelbase
35.75” (908mm)
Wheel size
10” (254mm)
Seat height
23.9” (607 mm)
Engine
Type
2-stroke, single cylinder, reed valve
Cooling system
Liquid-cooled
Coolant
50/50 antifreeze-coolant / distilled water
Displacement
49.8 cc
Bore and stroke
39 mm x 41.7 mm
Ignition system
Electronic, analogic advance
Spark plug
Autolite - XS61 & 4261
Gap
0.023” – 0.025” (0.58 – 0.64 mm)
Ignition timing
0.040” (1.0 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
14 mm Dell’Orto
Slow (Pilot) Jet / Main Jet
55 / 92
Float Height
16mm + 0.5mm (0.63” + 0.020”)
Transmission
Speed / Clutch
Single / Cobra 3 shoe
Final drive ratio
14/37 T
Chain
420
Transmission / clutch oil type
Cobra Venom 3 Shoe Clutch Milk
Quantity
235 – 350 ml (8 – 12oz)
Chassis
Front tire
2.50 – 10
Pressure
15 psi minimum
Rear tire
2.75 – 10
Pressure
15 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
145 ml
Std settings
Rear Shock ( std settings)
Smart leg: 3out,Compression and rebound 1 1/2 out
Compression Low 7, High 7, No Rebound Adj.