2/4WD wont switch to 4x4
 

Fuse is good. I cleaned the switch as well 2007 400 Grizzly. Where are the relays? anybody have a wiring diagram?


Thanks!

Can't say for certain on the Grizzly but most Yams only have a relay for the warning light. The switch powers the motor direct. There is a long thread on here about faulty shift motors and how to fix them.

Here are some good 4wd fix and check tips videos for 4x4 troubles. 501parts.com - Yahama Servo Motors