Hi there, im encountering a high speed wobble, at around 110km the handlebar starts to woble left and right.
Any suggestions what to check?

 

Could be a lot of things. Unbalanced wheel. Steering bearings. Simple tire wear. My FJ did this and my VFR does too as the tire wears.

 

Worn out front tire and possibly tire pressure. The tread cups and on most tires the **** pattern kind of staggers left and right a bit (block or tread offset) causing the wobble. Had it with my KLX650 when the front was worn pretty heavily.

 

How many miles are on the bike? It could need steering head bearings, or it could be tire related as others have stated.

Could be your suspension settings too. Do you have the rear of the bike lowered either by a lowering link or by preload adjustment? It can be caused by the bike being too raked out/not enough weight over the front.

 

I have knobby tires! My best guess so far is this, but also the mechanic adjusted the suspension and i feel it a bit lower now on the rear, maybe i need to higher it again to see if this will help!!
Otherwise, headset bearings are ok, rear wheel looks straight also, tried to balance the wheels a bit myself(didnt see any difference).

 

My 06 wandered from side to side down the road due to steering stem bearings being too tight. With front end off the ground you could feel the steering wasn’t smooth. Loosened the stem and problem solved.

 

Steering turns super light!