1983-1985 Original Honda ATC 200X Shop Manual, Page 143Get this manual
FRONT WHEELFRONT FORKSTEERING FORK BOOT CLAMP SI ide the fork boot up to the bottom bridge and tighten the fork boot clamp
AVI VALVE CAPS Fill each fork tube with air through the air valveSTANDARD AIR PRESSURE: kPa (0 kgcmpsi) NOTE: Check and adjust air pressure when the fork tubes are cold and with the front wheel off the ground, for accurate pressure readingsSome pressure will be lost when using the gaugeDetermine the amount of loss and compensate accordinglyBe sure that the air pressure in both fork tubes is equalUse of more than 70 kPa (0.7 kgcm10 psi) is not recommended because fork action becomes very stiffDepress the valve core to decrease air pressureInstall the air valve caps