Hello all. Just bought me and me son a couple 4 wheelers. 2003 Eiger 400 5 speed and a 2006 250 Ozark. Neither machine had an owners manual and I'm wanting to change all the fluids. Can you tell me what type of oil to use in each crank case and the rear drive on each? Also the front drive + diff on the Eiger? Thanks.
Also, is it normal for alot of clunking/clanging to come from underneath the Eiger when on steep, rough, downhill grades while just creeping along?
Thanks for any info you give.

 

On the Ozark, I use Suzuki 10w-40 in the engine, and 80-90 wt. gear oil in the rear diff.

 

Eiger engine = 10w/40, front & rear drive gear = API classification GL-5 rated SAE #90
I don't have the clunking/clanging going on except when my winch hook is doing it.

 

<div class="FTQUOTE"><begin quote>Originally posted by: mxzxrider1

Also, is it normal for alot of clunking/clanging to come from underneath the Eiger when on steep, rough, downhill grades while just creeping along?

Thanks for any info you give.</end quote></div>

I just had a clunking noise in mine which turned out to be the front wheel bearings. They were so bad on one side that the ball bearings fell out when I jacked up the front end to investigate. Get the front tires off the ground, grab the top and bottom of the tire, and see if there is a lot of play in the wheel. Or, you can take the tire off and the hub to check the bearings. If there's a lot of play, your bearings are probably badly worn. I've read on here that the OEM bearings weren't designed real well to keep out dirt/mud, which will lead to bearing failure over time. My left side was so bad I pulled out chunks of twisted bearing and this was the same weekend that I first noticed the noise. Good luck.

 

I use Amsoil 10W40 in the motor and Amsoil 80W90 in both diff's.
Mine makes noise when in 2wd and sliding with the rear brake on. I've read others do this to. It does not do it in 4wd.