Yamaha kodiak 1998 4 wheel drivr. front whheels pulls,but the back shaft dont

Question edited for clarity/
2 questions made into one.
Question moved to model category.

Service manuals

https://www.google.com/search?q=2000+yamaha+kodiak+400+service+manual

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replace tire should fix it and dont ride on paved road . tires are not rated for paved roads.tie rod ends , wheel bearings loose or bad , control arms . raise front end and look under atv wear if bad enough will b seen. shake each tire and have helper look under at same time to locate the problem. if one side bad replace both sides to prevent more trouble later on. always support both sides w/jack stands before looking under atv. be safe when shaking atv while on jack stands.

1998 Yamaha Kodiak 400 Wiring Diagrams 2001 yamaha kodiak wiring diagram... This might help you to find the problem

probably dirt in sensor on front wheel

buy new studs remove the front wheel remove the caliper and rotor take a hammer and knock the old stud towards the truck its splined but will come out pretty easy , start the the stud from the rear and use spacers and and a lug nut to pull the stud back into place

If it's 4x4 look here for diagram
You will need to remove the wheel, then remove the center rubber cap, remove the pin on the castle nut, remove the nut and washer and pull the assembly off.

Always assemble your engine at TDC on the compression stroke...

Hi
That sounds like the bevel box gears at the rear wheel or the drive shaft to them
Pull back the rubber boot at rear of engine to check if shaft is rotating
remove rear wheel & check the output shaft from the bevel box is rotating
If not then remove bevel box & check splined join to drive shaft

Ride Safe
Bike-Doc

Sounds like either a wheel bearing, or axle shaft.