2008 Suzuki LT-A400/F, LT-F400/F ATV Service Manual, Page 105Get this manual
Engine Mechanical: NOTE To properly measure the oil clearance with plastigauge, all gasket material must be removed from fitting surfaces of cylinder head and coverDo not apply bond until after the oil clearance has been determined 1D-29
If the camshaft journal oil clearance exceeds the limit, measure the outside diameter of the camshaftReplace either the cylinder head set or camshaft if it the clearance is incorrectSpecial tool0990020205 (Micrometer (0 25 mm)) Camshaft journal O.D(IN& EX Standard (Sprocket side): 21.959 21.980 mm (0.8645 0.8654 in) Standard (Other side): 17.466 17.484 mm (0.6876 0.6883 in)
I827H1140077-01