2008 Suzuki LT-A400/F, LT-F400/F ATV Service Manual, Page 259Get this manual
Wheels and Tires: NOTE Check the "rim line" "B" cast on the tire sidewallsIt must be equidistant from the wheel rim all the way aroundIf the distance between the rim line and the wheel rim varies, this indicates that the bead is not properly seatedIf this is so, deflate the tire completely, and unseat the tire bead on both sidesThen, coat the bead with clean water, and re-seat the tire 2D-5
6) Adjust the tire pressure to the specified pressureCold inflation tire pressure Front: 32.5 kPa (0.325 kgfcm2, 4.7 psi) Rear: 30 kPa (0.30 kgfcm2, 4.4 psi) Vehicle load capacity 172 kg (380 lbs)!
CAUTION
Before inflating the tire, check the MAXIMUM OPERATING PRESSURE rating of the tireThis is indicated by" following the tire size shown on the sidewallThe number of" on the tire indications the maximum operating pressureMaximum operating pressure25 kPa (0.25 kgfcm2, 3.6 psi)35 kPa (0.35 kgfcm2, 5.1 psi)45 kPa (0.45 kgfcm2, 6.5 psi)