2008 Suzuki LT-A400/F, LT-F400/F ATV Service Manual, Page 110Get this manual
1D-34 Engine Mechanical: Piston Pin and Pin Bore Using small bore gauge, measure the piston pin bore inside diameter, using the micrometer, measure the piston pin outside diameterIf the reading exceeds following limit, replace both piston and piston pinSpecial tool0990020602 (Dial gauge (11000 mm, mm))0990022403 (Small bore gauge (18 35 mm)) Piston pin bore I.DService limit: 20.030 mm (0.7886 in)
Engine Bottom Side Disassembly
LT-A400F NOTE
B827H21406022
The crankcase must be separated to service the crankshaft and conrod1) Remove the engine assembly from the frameRefer to "Engine Assembly Removal (Page 1D-6)"2) Remove the engine top sideRefer to "Engine Top Side Disassembly (Page 1D-10)"Starter Motor 1) Remove the starter motor (1)