2008 Suzuki LT-A400/F, LT-F400/F ATV Service Manual, Page 131Get this manual
Engine Mechanical: Oil Filter Install the oil filter with the special toolRefer to "Engine Oil and Filter Replacement in Section 0B (Page 0B-7)"Special tool (A): 0991540610 (Oil filter wrench)
Install the spring to the gearshift cam shaft properly
I827H1520029-01
Install the gearshift cam shaft assembly while aligning the spring ends with the stopper pin