1985-1987 Honda TRX 250 Fourtrax 250 Service Manual, Page 7Get this manual
GENERAL INFORMATION DRIVE TRAIN
Clutch Transmission
Primary reduction Wet multi-plate, semi-automatic 5-speed constant mesh with reverse
SIL II III IV
2.407 (65127) .083 (4912 )
Gear ratio
2.389 143" 81.609 {37 231
1 .1 79 (33 28) 0.906 (29321 5.397 5.684 Left foot operated return system, Forward: N-SLReverseN-R
CDI 13 BTDC at idle 31 BTOC at 3,500 rpm 200W5 ,OOO rpm 12V12AH DR8ES-l (NGKI X24ESA-U (NDI 0.60.7 mm (0.0240.028 in) 12V 5W45W 12V 3.4W II t2V 3W 12V 3W 12V .4W