I agree with beergut about the balljoint not causing that. Which brings me to 3 things. 1. shocks. Pick it up and drop it and see if it bounces. 2. mismatched or misinflated tires. 3. You just aren't used to the power of the 400ex.

 

hehe- that thought actually crossed my mind-
I was wondering if he's winding out when clutching, or he's just stuffing the throttle and the rear is kicking out on him, which is normal for a live axle- especially if the tires are worn and he's in dirt.

 

Yep, could be one of those. Also, what kind of surface is he on? Wet grass? lol

 

I have a 02 ex. Its always twitchy at high speeds. I have checked it over a few times and found no problems. It feels like the steering is almost to senseitive.

 

Thankfully no I don't think the frame is bent ha, maybe "fish-tail" was to harsh of a word to describe it, its more like pulling left to right like the front wheels are working against one another , ill check the alignment and get back to y'all, thanks for ur help everyone, this site looks real promising glad I joined it!!!

 

Your right this is a powerful bike but im no dummy ha I kno how to handle it, its mostly when im ***** to the wall full throttle on asphalt when the steering gets real touchy and kinda ears to pull left and right

 

yep- he's from mass

gardner = the "new" cambridge where even atv's are too sensitive

 

Thts pretty much what im getting ti, what about a steering stabilizer?? Maybe? Ha

 

keep in mind- live axles do not like asphalt! just about every sport quad will feel twitchy on tar.

riding on pavement is a great way to ruin your carrier bearing quickly.

 

I know when I had my kfx wound out, my *** end was puckered shut.