1981-1984 Official Honda ATC250R Shop Manual, Page 252Get this manual
'83 ATC250R ADDENDUM
Measure the spring lengthTurn the adjusting nut to obtain the correct spring lengthSTANDARD SPRING LENGTH: 208 mm (8.2 in) NOTE: lOne turn equals 1.5 mm (0.06 in) VlAXIMUM SPRING LENGTH: 213 mm (8.4 in) MINIMUM SPRING LENGTH: 193 mm (8.0 in) ADJUSTING NUT
LOCK NUT
A: SHORTEN THE SPRING LENGTH
B: INCREASE THE SPRING LENGTH SHOCK ABSORBER
CAUTION: