I've been reading about the grizzly because I am thinking of buying one, but i was reading about it and someone said they where driving theirs over some logs real slow and the rear axle popped out of the differential. is this a common problem?

 

No. Im sure it was a freak thing, every quad will run into the day it has a problem, wether it happen right away, or later. Sometimes a quad just isnt put together right. The Grizzly is a nice machine, and it would be my second choice of quad.

 

It's getting a little "long in the tooth" as they say but they've pretty much got the bugs worked out off it now from pretty much everything I've read. It's pretty refined and a solid machine. Not the bleeding edge but a solid performer that a person sure couldn't go wrong with.

I've had some seat time on one and I really liked it. It had radial tires and rode really nice. Went through nearly every mudhole I stuck it in and scooted along the road as fast as I really cared to drive an ATV.

 

I agree with the Captain. Yep, I sure do.

 

To my understanding it was a poor design on a C clip. It has now been redesigned and clips
can be ordered without much trouble. I believe it affected mostly the older Griz's.

 

Grizzly's have also had limited number of problems with axles snapping with larger wheel/tire kits. The committment to keep the machine as light as possible hurt the driveline due to small joints and shafts. Yamaha stood behind some, others they did not. If the dealer reported a larger diameter tire size then the claim would be denied. They have supposed to changed the casting temp. of the joints to increase strength but no reports on paper to see results yet

 

Running bigger tire kits runs that risk on all quads. Its stupid to blame any quads manufacturer for your own mistake. Everyone knows the risks. They come with a certain size tire for a reason.

 

I agree. 9 times out of 10, it's the stress from tires. But it ended up being weak material from the joint provider. Kinda like what happened with the polaris scrambler tranny case cracking in early 2000 models. the company that poored the casting changed the way they poored the cast, got air bubbles in the area where the front sprocket goes on at. a hard slam or spinning off a jump would crack it in 2.

 

in both cases, the atv company did there best to dodge the issue

 

My grizz is my favorite bike yet. Fast as hell and gets through pretty much anyhting. I only got 10hrs so no issues of any kind yet. I've heard of axle problems but most were with bigger tires. I wouldn't increase my tire size anyway b/c i believe in keeping it as close to stock as possible. Thats the way it was designed sp thats the way i keep it.