2nd Gen front brakes

[Shelbylively42]

Just got a 2009 2nd gen, and the front shakes when braking above 60mph. I don't think it is the rotors because under 60mph it is smooth regardless of pressure applied. Was wondering if it is typical of the ABS system. I've owned 2 other bikes with abs and they didn't do this.

 

[one2dmax]

Something is wrong. I would start by cleaning and lubing the floating buttons of the rotors.

 

[Jerry Klay]

+1 on the rotor buttons. I've had my 09 front brake pulse usually a hard grab at even 30-40 mph seems to correct it

 

[Shelbylively42]

I'll clean them up and let you know if it is better. Thanks for the replies.

 

[Shelbylively42]

Cleaned and lubed all buttons, cleaned and lubed slide pins for the pads. Still only vibrates above 60.

 

[user 16790]

could your wheel be out of balance

 

[Jerry Klay]

I had a wobble at 50-55. Had a hell of a time finding it. Turned out to be the tire. Don't know if it was bad from the beginning it wore bad from a bad balance.

Had the front off the ground. Calipers off and had a block close to the tire and gave it a spin. It was grossly obvious it was out of round by about 1/4".

Just a thought as something to check.

 

[Shelbylively42]

Was yours only vibrating while braking? Riding is smooth as anything just only the front brakes above 60mph, like 58mph smooth brakes, 60 plus it vibrates.

 

[Jerry Klay]

Hands off the bars would wobble. Touch the bars would stop. Felt pulsing when light breaking.

 

[Shelbylively42]

Updating the thread, after trying to clean the rotor buttons the right way and the wrong way (bolt through the center spinning it with an impact gun) I finally decided to get new rotors and there is no more vibrations. Sucks cause yamaha rotors are like $500.

 

[Jerry Klay]

Updating the thread, after trying to clean the rotor buttons the right way and the wrong way (bolt through the center spinning it with an impact gun) I finally decided to get new rotors and there is no more vibrations. Sucks cause yamaha rotors are like $500.

Wow! That is a lot of dough. No aftermarket rotors that were nice.

Could you figure out what was wrong with the old ones? Warped??

 

[Shelbylively42]

I didn't get them miked. But the EBC were around 400 and some China brand was about 200. I like to keep parts OEM on the really important stuff. I guess they where warped. I just couldn't believe it based on symptoms. But proof is in the pudding.

 

[Jerry Klay]

I didn't get them miked. But the EBC were around 400 and some China brand was about 200. I like to keep parts OEM on the really important stuff. I guess they where warped. I just couldn't believe it based on symptoms. But proof is in the pudding.

Thanks for the info. I run the EBC HH Pads front and back and been very happy with their performance. I have no experience with their rotors. But you generally can't go wrong with OEM parts.

 

[Shelbylively42]

I've never had to replace rotors before on any of my bikes. So I was real hesitant on them, I even checked and re torqued my steer ahead bearing. I like EBC but taking the front wheel off I wanted to be sure I was going back on with OEM just to be extra sure.