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Ryan, Reese's, and Ed's John Deere Snowmobiles


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1974 JDX4 and JDX8 Specs

specs                        jdx4                        jdx8
manufacturer           kohler                     ccw
model                      k295-2ax           kec440/21
# of cyl.                      2                           2
bore                         56mm                   66mm
stroke                       55mm                   64mm
displacement           292cc                   438cc
saej245hp rating    24@6800rpm  38@6750rpm
saej607hp rating    25@6800rpm  40@6750rpm
fuel system
carb.mfg.                 walbro             walbro
carb.model             wda-37             wda-34
tank capacity       5.5us  gal.         5.5us  gal.
fuel mix ratio          50:1                  50:1
chassis and body
tunnel and pan         steel             aluminum
hood+console      polyester         polyester
windshield          polycarbonate polycarbonate
length                 103.4in            103.4in
width                    35.5 in               35.5in
heigth                  40in                   40in
weight                396lbs               386lbs
track and suspention
type           trailing arm bogie  trailing arm bogie
#of bogie              15                        15
track material    polyurethane    polyurethane
track width       15.5in                 15.5in
power train
type            2 sheave variable 2sheave variable
mfg               salsbury               salsbury
model              780                     850
final drive ratio
standard         2.19:1                 2.05:1
optional          2.44:1           2.19:1,,2.44:1
brake          external band      external band
drive belt     m63911                 m63912
electrical system
plug gap        0.020in                 0.020in
breaker gap  0.016~.002in   0.014~.002in
timing(static) .090inbtdc(adv) .23~.005in
light coil cap.   100watt              120watt
light bulbs
headlight       am52309             am52309
stop/tail         am52305             am52309
speedometer  at22970              at22970
tachometer    at22970               at22970
battery          am52050             am52050