2008 Suzuki LT-A400/F, LT-F400/F ATV Service Manual, Page 327Get this manual
Transfer: Gearshift Fork Groove Width Measure the gearshift fork groove width using the vernier calipersSpecial tool (A): 0990020102 (Vernier calipers (120 mm, 200 mm)) Gearshift fork groove width Standard (Transfer): 5.5 5.6 mm (0.217 0.220 in) 3C-16
3) Disconnect the gear position switch lead wire coupler (1)
I827H1190029-01
4) Remove the drive V-belt inner coverRefer to "Clutch Shoe Removal and Installation in Section 5A (Page 5A-16)"5) Remove the gear position switch (2)I649G1520057-03
Gearshift Fork Thickness Measure the gearshift fork thickness using the vernier calipersSpecial tool (A): 0990020102 (Vernier calipers (120 mm, 200 mm)) Gearshift fork thickness Standard (Transfer): 5.3 5.4 mm (0.209 0.213 in)