My front end pulsates while breaking? - Chicagoland Sportbikes
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post #1 of 25 (permalink) Old 04-13-2005, 11:11 PM Thread Starter
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My front end pulsates while breaking?

After Strats tonight (cold night) as I was heading home I noticed my front end pulsates mildly as I apply the front brake. I'm a noob to bikes, so I will test it tomorrow morning and check to see if the rim has any dents as well as the rotors are not warped. The bike is not even a year old, kinda worries me cause I cant remember the bike doing this until today. Should I continue to ride?
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post #2 of 25 (permalink) Old 04-13-2005, 11:39 PM
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Might want to check tire pressure too.

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post #3 of 25 (permalink) Old 04-13-2005, 11:59 PM
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Have you messed with the cross drilled brake lines? I know the 2004 R1 was having a problem with the crossed drilled lines rubbing up against the Dildovib Analgaper. Just give it a whack with a left handed hammer and you'll be all set. Also, you could be low on blinker fluid.

"includes 10 used-car dealers or auto repair shops, 11 liquor stores and bars--two of which advertise lingerie fashion shows and a third billed as a "gentlemen's club"--three cut-rate motels and one trailer park. The squat, brick municipal building is next to a currency exchange and a few steps from an adult video store. The bars open at 10 a.m. and close at 6:30 a.m."

Quote:
Originally Posted by admin View Post
Something must be fishy...I am going to go poke around in the back end..

Last edited by whiteSeatEnvy; 04-14-2005 at 12:06 AM.
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post #4 of 25 (permalink) Old 04-14-2005, 12:07 AM
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Quote:
Originally Posted by whiteSeatEnvy
Have you messed with the cross drilled brake lines? I know the 2004 R1 was having a problem with the crossed drilled lines rubbing up against the Dildovib Analgaper. Just give it a wack with a left handed hammer and you'll be all set. Also, you could be low on blinker fluid.

WRONG.. I read the owners manual and it clearly states not to wack it with the left handed hammer, but to give a thump two times and then wack it.

Geez.. I can't believe you missed that.

But you are right on the blinker fluid... that one got me my first ride out in the cold too.

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post #5 of 25 (permalink) Old 04-14-2005, 12:10 AM
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Bent rotor.
post #6 of 25 (permalink) Old 04-14-2005, 12:48 AM
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Could be suspension set-up or glazed rotors... I was getting the same thing earlier this season til i sanded the rotor surface a little bit. I installed new pads at the end of last season and broke them in at the track. Bad idea I guess.

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post #7 of 25 (permalink) Old 04-14-2005, 07:47 AM
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Quote:
Originally Posted by Dr. D
Might want to check tire pressure too.
im going with this one too

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post #8 of 25 (permalink) Old 04-14-2005, 08:17 AM
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Quote:
Originally Posted by Dr. D
Might want to check tire pressure too.
Yep this would be my guess.....If you have not been riding "hard" and major brake jobs or retro/upgraded the braking system then start with the basics.

(if air pres is good) Lift the front on spin the tire while looking at the brake pad to see if you have any points of harder contact then normal. have someone squeeze the brake and watch the pads grip and release.

After you check that then let us know what you find....

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post #9 of 25 (permalink) Old 04-14-2005, 09:51 AM
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Bent rotor.
post #10 of 25 (permalink) Old 04-14-2005, 10:06 AM
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Quote:
Originally Posted by Tyco

But you are right on the blinker fluid... that one got me my first ride out in the cold too.
I need some blinker fluid too, dont you have to have that done at the dealer if you dont have a concentric smoke shifter tool?

Any one got one I can borrow?

"When in doubt, use full throttle. It may not improve your situation, but it will end the suspense."
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post #11 of 25 (permalink) Old 04-14-2005, 03:02 PM
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Clean the buttons on the rotors.
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post #12 of 25 (permalink) Old 04-14-2005, 03:07 PM
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This is my favorite kind -much better than the synthetic stuff.

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post #13 of 25 (permalink) Old 04-14-2005, 04:02 PM
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Quote:
Originally Posted by Good2Go
Bent rotor.

dude give up, nobody is listening

<-- Chris

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post #14 of 25 (permalink) Old 04-14-2005, 04:14 PM
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Quote:
Originally Posted by Good2Go
Bent rotor.
Tire pressure!

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post #15 of 25 (permalink) Old 04-14-2005, 04:21 PM
Bring it on!!!!
 
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Quote:
Originally Posted by Good2Go
Bent rotor.
+! on the bent rotors. I had the same issue last spring and a very cool CLSB member had a pair layin around and hooked me up. You could try replacin the pads or even sanding them down, either way it will come back. They're bent.
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post #16 of 25 (permalink) Old 04-14-2005, 04:44 PM
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Did I mention bent rotor!

If the tire was low on air it would do it all the time not just braking. Same with a bent rim.


If the info is correct that it only happens while braking and you have not had an accident with you bike it is the rotors. I say if you didn't have an accident with you bike cuz it could be bent forks or frame but that would be extreme case. You can bend rotors very easily when moving it around the garage or storage area or it you transported in a vehicle with a wheel chock and it moved around on you.
post #17 of 25 (permalink) Old 04-14-2005, 04:49 PM
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Quote:
Originally Posted by JimGoFast
Tire pressure!
Buttons on the Rotors !
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post #18 of 25 (permalink) Old 04-14-2005, 05:02 PM
yo quiero su taco
 
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Dildovib Analgaper!

"includes 10 used-car dealers or auto repair shops, 11 liquor stores and bars--two of which advertise lingerie fashion shows and a third billed as a "gentlemen's club"--three cut-rate motels and one trailer park. The squat, brick municipal building is next to a currency exchange and a few steps from an adult video store. The bars open at 10 a.m. and close at 6:30 a.m."

Quote:
Originally Posted by admin View Post
Something must be fishy...I am going to go poke around in the back end..
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post #19 of 25 (permalink) Old 04-14-2005, 06:29 PM Thread Starter
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Thanks for all the suggestions (thats why I joined CLSB), anyways i check everything and it looked good. I decided to get it checked by a Local Yamaha tech. He looked at it and played with the breaks and everything checked out fine. He said as long as it doesn't jitter while breaking I'm good, oh yeah I'm half way through my front pads. Symptom of floating rotors
Thnx again

Props to Highlands Yamaha for looking at it without appointment or charging me!!!
DGY what/who???
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post #20 of 25 (permalink) Old 04-14-2005, 06:31 PM Thread Starter
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WhiteSeatEnvy had the most useful advise in this thread, NOT!!!
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post #21 of 25 (permalink) Old 04-14-2005, 09:38 PM
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Quote:
Originally Posted by mig909
WhiteSeatEnvy had the most useful advise in this thread, NOT!!!

Hey, if you want to listen to a weenie Yamaha tech with all his "certifications" and "years of experience", that's your decision. I've got a whole 36 months of old school, hard-nose, life experience under my belt, that's right 36 months, big guy. If you think you can't learn anything hanging out at the local Starbucks trying to pick up MILFs all day, you're wrong. My years real-life expertise tell me its the Dildovib Analgaper and I'm sticking to it.

"includes 10 used-car dealers or auto repair shops, 11 liquor stores and bars--two of which advertise lingerie fashion shows and a third billed as a "gentlemen's club"--three cut-rate motels and one trailer park. The squat, brick municipal building is next to a currency exchange and a few steps from an adult video store. The bars open at 10 a.m. and close at 6:30 a.m."

Quote:
Originally Posted by admin View Post
Something must be fishy...I am going to go poke around in the back end..

Last edited by whiteSeatEnvy; 04-14-2005 at 09:57 PM.
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post #22 of 25 (permalink) Old 04-14-2005, 10:03 PM
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well at least it wasnt a bent rotor

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post #23 of 25 (permalink) Old 04-14-2005, 11:56 PM
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don't brake
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post #24 of 25 (permalink) Old 04-15-2005, 01:11 AM
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Quote:
My front end pulsates while breaking
I don't know about you guys, but my front end starts to pulsate after a couple of Jack n' Cokes and some midget porn.

"includes 10 used-car dealers or auto repair shops, 11 liquor stores and bars--two of which advertise lingerie fashion shows and a third billed as a "gentlemen's club"--three cut-rate motels and one trailer park. The squat, brick municipal building is next to a currency exchange and a few steps from an adult video store. The bars open at 10 a.m. and close at 6:30 a.m."

Quote:
Originally Posted by admin View Post
Something must be fishy...I am going to go poke around in the back end..
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post #25 of 25 (permalink) Old 04-15-2005, 09:00 AM
 
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Quote:
Originally Posted by actionmotor
don't brake
This is clearly the answer.
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