1974 John Deere JDX4
ENGINE
Manufacturer: Canadian Curtiss-Wright (CCW)
Model: KEC-340/5
No. of  Cylinders: 2
Bore: 60MM
Stroke: 60MM
Displacement: 339CC
FUEL SYSTEM
Carburetor Manufacturer: Bendix
Carburetor Number: AM52877
Tank Capacity(Gals.): 5.50 (U.S.)
Fuel Mixing Ratio: 50:1
CHASSIS AND BODY
MATERIAL
 Tunnel: Aluminum
 Hood and Console: Polyester
 Windshield: Polycarbonate
Overall Length(Inches): 103.4
Overall Width(Inches): 34.7
Overall Hieght(Inches): 40.5
Overall Weight(Pounds): 375
TRACK AND SUSPENSION
Suspension Type: Slide Suspension
Track Material: Rubber
Track Width(Inches): 15.5
POWER TRAIN
TRANSMISSION
 Type: 2 Sheave Variable
 Manufacturer: John Deere (Comet)
 Model: 100C
FINAL DRIVE RATIO
 Standard: 2.19:1
 Optional: 2.44:1
Brake : External Band
DriveBelt: M64550
ELECTRICAL SYSTEM
Spark Plug Gap: 0.020 In.
Breaker Point Gap: 0.014+ .002 In.
Timing: 0.015 In. BTDC (Static)
Lighting Coil Capacity: 120 Watt
LIGHT BULBS
 Headlight: AM52959
 Stop-Taillight: AM52619
 Speedometer: AM52847
 Tachometer: AM52847
Battery(Electric Start): AM52050
BATTERY SPECIFICATIONS
Votage: 12
John Deere Part Number: AM52050
BCI Group: U1
Cold Cranking Amps (0*F- 20*F): 175, 105
Reserve Capacity (Minutes at 25 Amps): 35
SPARK PLUG SPECIFICATIONS
Brand: AC
Cold: S41XLR- AM53008
Normal: S42XLR- AM53007
Hot: S43XLR- AM53018
Brand: Champion
Cold: N57- AM53014
Normal: RN2- AM53001
Hot: RN3- AM53006
Brand:Champion (Gold-Palladium Plugs)
Cold: N57G- AM53015
Normal:N59G- AM52641
Hot: RN3G- AM53016