Honda TRX70 Fourtrax 1986 Service Manual page 6

GENERAL INFORMATION
mm(in)
Item Specifications
DRIVE TRAIN Clutch Centrifugal wet multi-plate
T ransmission
4-speed constant -mesh, semi-automatic
Primary reduction 4.059 : 1
Gear ratio I 3 .273 : 1
Gear ratio II 1.938 : 1
Gear ratio III 1.350 : 1
Gear ratio tv
1.043 : 1
Final reduction 2 .769, drive sprocket 13T, driven sprocket 36T •
Gear shift pattern Left foot operated return system, N -1-2-3-4
ELECTRICAL Ignition system COl
Starting system Recoil starter
Spark plug NGK NO
Standard CR7 HS
U22FSA-U
For cold climate (below 5°C , 41°F)
CR6HS U20FSA·U
For extended high speed use CR8HS U24FSR·U
Spark plug gap
0 .6 - 0.7
mm
(0.024 - 0.028
in)
Ignition timing 25 °
±
2° BTDC
4
•
,
1-4