2008 Suzuki LT-A400/F, LT-F400/F ATV Service Manual, Page 36Get this manual
0B-5 Maintenance and Lubrication: 5) Turn the crankshaft until the piston reaches TDC on the compression stroke by slowly pulling the recoil starter ropePull the recoil starter rope until the line (4) on the generator rotor is aligned with the mark (5) on the crankcaseAdjustment 1) If the clearance is out of specification, bring it into the specified range using the special toolSpecial tool (A): 0991714910 (Valve adjuster driver) Tightening torque Valve clearance adjuster lock-nut: 10 Nm (1.0 kgf-m, 7.0 lb-ft)
I827H1020002-01
6) Remove the valve timing inspection caps (6)
I827H1020047-01
I827H1020046-01
7) Insert the thickness gauge to check the clearance between the valve stem end and the adjusting screw on the rocker armSpecial tool (A): 0990020803 (Thickness gauge) Valve clearance (When cold) IN 0.05 0.10 mm (0.002 0.004 in) EX 0.22 0.27 mm (0.009 0.011 in)