Wmoater
Active member
Warped rotors will wobble front end really bad if brakes are applied forcefully. That’s why I said do at low and high speed. That would be the wobble at high speed braking. Pre load uneven or to tight of shocks would cause it on acceleration. I’d first get air correct in tires and check and test. Next check the lugs, remove and retighten to 77 and test. Next loosen the shocks to Oem setting and test. Other words loosen so no pressure. Test. Add a pound of air in shocks or a twist depending on which setup and make sure spyder is level sitting on it. If the front is to high or loaded there’s no down force taking off. My opinion I like the front a touch lower. I’ve set many snowmobiles up with shocks and a correctly dialed in shocks make a huge difference. Incorrect setting will cause lift at the acceleration. If the fronts are to stiff and the backs soft it’s going to be sloppy. Both the fronts and backs must mate while sitting on it. One extreme on one end will cause lift. A stiffer rear and touch softer front is best as long as it level sitting on it. Baja Ron knows the measurements. Follow his recommendations on the shock setup. It’s best to start everything soft and adjust accordingly. Rear then fronts. Test after each shock adjustment. Slow and steady.
) discovered that at least some front discs aren't squarely mounted on the hub/spindle, which can cause a 'wobble' as well as disc/pad wear issues & may potentially even cause 'wobble under acceleration'! :dontknow: 
