Just brought my 06 kodiak 450 out of storage after a 2 year sleep. When in 2wd the display says DIFF lock is on. Rev limiter kicks in when riding. I can hold down the override button on the hand controls but dont know where the problem lies. I switch from 4wd to 2wd and press diff lock button but changes nothing. Can anyone help?

 

Firstly, find out if the diff lock is on or off. You could probably feel if it is on by stiff steering but to be sure, jack the front wheels up with 4WD engaged and turn one wheel by hand, it will be stiff, but the other wheel should turn backwards. If it does, engage 2WD and the front wheels should spin the same way easily. If everything works except the lights on the dash don't alter, your fault is in the switch on the diff or the wires to it. Old, pre-diff lock, Kodiaks had a simple plunger switch sticking out the back of the diff which powered a relay under the seat to work the 4WD light, don't know what the later one has.

 

Thanks. I will check it out this evenin . Thanks for the reply

 

If you do not want to jack it up, you now the diff lock works if the steering is much harder then in 2wd or 4wd. To check 4wd just nose up to a strong tree or wall on dirt ground and give it gas and see if one of the front wheels is turning or trying to. 2wd the rear will just dig two ruts rather easy.

Faster and no jacks to screw with.

 

I am for sure not in 4wd.

 

If its not going into 4wd you can look into this post https://atvconnection.com/forums/yam...cheap-fix.html.

 

It will go in and out of 4wd. Whether or not the diff is actually locked is yet to be determined. On the dash it says it is. I don't hear anything that let's me know it has disengaged the diff lock when I push the override button. Goes in and out of 4wd no problem

 

Just do the jack test, five min and you're done.

 

Just by the heavy steering their is no mistaking if your in diff lock or not.
The indicator lights can get funky. Sometimes my 4wd will not go out for 5 mimuites after I switched back to 2wd and this is my second Yamaha 4x4 that did that so I just though it normal.

I put it in diff lock a few times and the light sometimes did not come on but just by the hard steering I sure could tell the lockers were working ok, sure do not need a indicator light to tell me if I'm in diff lock or not.

 

Differential is not engaged. Disconnected voltage regulator (someone told me to do this) no change. Diff lock light is on and rev limiter cuts out. Can push override and bike runs fine as long as button is pushed in