20 Years Did A Number On My CBR900RR's Brake Calipers

[@davidchi8914]

Hey! I might not have any technical insight to offer, but I want to thank you for publishing yet another great video. I've been a subscriber for the better part of two years, and though I have never commented on any of your videos, I truly do enjoy them. Your presentation style is so refreshingly... mild-mannered and grounded, in this place of excess. I recently sold my clapped out VFR750 to cover some medical expenses, and KZbin is the only way I can scratch that itch for the time being. Thank you for creating such quality content!

[@PracticalEnthusiast]

Thanks David, that means a lot. I appreciate you subscribing and watching for the past couple of years. I hope you can can get back on a again bike soon - I'll do my best to keep the videos coming!

[@adamcrux6829]

I've got this same noise although not as loud on my 99 CBR 900rr. I just replaced the brake pads as well but noise is still there. Watched this video then immediately went and bought some DOT4 and took my calipers apart. Same issue but only on the right side caliper was completely clogged. Glad I watched this as I was considering buying new calipers.

[@treeguyable]

Glazed rotors and pads. Mercedes Benz, even 30 yrs ago, sent brake pads with sandpaper glued on, to the dealerships, as a special tool, to install, and drive the car around the parking lot, to " rough up" the glazed rotors. It worked pretty good, got rid of the noise. Restored stopping power. Had to sand the brake pads too, or replace.

[@jt1573]

The rotors are probably mounted with uneven pressure-e.g. one of the rotor bolts is probably much looser than the others, creating a flexible zone which vibrates at high frequency when braking pressure is applied. Think of a tuning fork and how you can silence it by pinching the sides that vibrate.

[@PracticalEnthusiast]

I hadn't thought about that - thank you! I'll check the rotor bolts out!

[@andrewwallis328]

Put some copper grease on the back of the pads. The noise could be the pads vibrating.

[@robertschiela8355]

Not sure if you still have the problem. I'd suggest replacing the pad hardware- pad pins and spring clip. The spring can lose its tension over time and the pins can wear a groove where they contact the pads. Then the vibration makes noise. I think that's often the cause when lubing or other fixes are temporary but the noise comes back.

[@PracticalEnthusiast]

I hadn't considered that - thanks for the tip!

[@Manualtrdtacoma]

I agree with a previous commenter. Possibly the rotors. They could be warped or unbalanced, casing a harmonic vibration.

[@PracticalEnthusiast]

I'm going to check the rotor bolts out!

[@woooster17]

Next job is the same on my ‘99 RRX Blade.. I have no noise, but there is a judder through the bars when braking hard from high(ish) speed. Potentially warped discs, but I’ll pull the callipers apart too and check the pistons aren’t sticking. Good video. Wish I had an airline 🤗

[@firebladelover1886]

Love the videos I’m rebuilding my 1993 and these are a massive help to me thanks

[@al3ari3l08]

Great video! I love 90's bike too, zx7r is the best :) still waiting for another video of that one. Your garage is awesome, hope someday have one like yours

glazed rotors & brake pads and unintended use of the brakes when I bought my 954 blade it also had squealing brakes with oem pads. After having cleaned and sanded the rotors and the pads it didn't squeal at first but soon started to squeal again after having used the brakes with low braking force in city traffic. Then I decided just to use the brakes hard and they have not been squealing since. Yes, the original pads might be too hard for riding like a puss and only braking lightly.

[@daddylovesfaith]

Copper paste the pads backing plate and anywhere it touches the caliper (use loads). You're experiencing brake squeal, which is where the pads vibrate under braking application. The copper paste acts as a damping agent.

[@saltysealion]

Enjoyed the background funky music . Cringed when the piston went flying. With the brakes, perhaps more details. Lubing the sliders, and the back of the pads. Cleaning the rotors and checking their thickness as well would help.

[@jeffgatt4576]

Just saw your video on the brake calipers. It appears at first sight that you had yourself a very dangerous condition with the rear pistons being seized into position. I would have to say that there is a possibility of cross contamination from "someone" using something other than DOT4 brake fluid as a top up. This can lead to some nasty crap inside the system itself. I would suggest a brake line replacement as well with those rubber lines on the machine being as old as they are need to be changed because they WILL burst one day. Hydraulic fluid should be done every two years with regular use as it does degrade and at a faster rate with aggressive riding and high temps it does so much faster.

[@n7narcosis]

Take some sandpaper to your rotors and see if that clears it up first. If it's just been city driven, it probably glazed up.

[@nomusplenus]

wet n dry

[@ColinTyndale]

Copper grease on the back of the pads if they are dry they will vibrate causing this noise

[@franklinwilkerson2061]

I don't know why but I laughed so hard watching those pistons fly out. Then I thought of that dude from "No country for old men."

[@treeguyable]

I thought everyone knew to put a rag over parts that are " shot out" with compressed air.

[@spencerbeckingham1076]

Where’s the fun in that?

[@treeguyable]

@@spencerbeckingham1076 Yea, we've all done the search around the shop , for that missile that took off by accident.😆

[@joshhoyt9576]

I'm resurrecting a 93 900rr red white blue with 460 miles. It runs! Doing brakes caliper rebuild, vapor honing, painting covers...etc. Can you help with a detail of how the clutch cable get routed? Mine is hanging up and causing issues when I go full lock. Thanks

[@bluckq]

Did you ever end up fixing the problem?

[@sergeantsodom6969]

Disc may be warped due to uneven heat when the forward pistons were blocked?

[@beholderlt]

glazed rotors

[@zack3340]

your rotors look glazed and may need to be resurfaced because of uneven wear due to piston failure

[@paulyC]

Damn, that old brake fluid was disgusting!

[@PracticalEnthusiast]

Yeah, I wasn't expecting it that's for sure.

[@morriskurz5745]

Frankfurt license plante in the back

[@jacksonburnett6401]

How much for the 1993?????? That thing is mint!

[@MxAxRxK]

Did the brakes perform better after this? My 900 seems to have pretty bad front brakes compared to my other bikes.

[@PracticalEnthusiast]

The brake lever firmed up a bit, but the initial bite is simply not there. I'm considering trying different pads.

[@ttmadness34]

Lovely bike, Im looking at picking up a 98 blade soon which needs new tyres. Can I ask what you are running on yours and what do you think of them? I know there is limited choice out there for these wheels.

[@nomusplenus]

SP1's bridgestone Batlax.

[@kennithchan2102]

Ulrasonic cleaner? could have made the cleaning quicker and way easier?

[@wrivera5752]

We need more 300ZX videos

[@mantassertvytis6909]

6.51 how much NM you use for bolt??

[@aliyusanichedi131]

And how about that your cbr 900rr 1994 is it for sell too?

[@enricomaggian4657]

How mutch nm for the caliper bolts?

[@JMMedia]

Hey what size are the Torx bolts holding the caliper halves together?

[@PracticalEnthusiast]

I think they are M8x40mm.

[@jocaleite2281]

Me diz a relação de Cabo de velas da cbr 900 honda

[@user-ck7zu5bl7u]

Jalopnik is that you????

[@Turbinepilot]

I would pinpoint it down to the rotors. They might be pretty glazed. m.kzbin.info/www/bejne/h5uue36qbql0ipY Try that and see how it goes. Plus depending on how long you had those pads in with only one side wearing with the stuck pistons your pads might be not wearing straight.

[@aliyusanichedi131]

Hi peter, hop all is well with you? i really like your videos cos i do follow you on youtube. please do you sell bikes?

[@PracticalEnthusiast]

Thanks for watching! Eventually I do end up selling them, but I just like these old CBRs too much to sell them anytime soon.

[@aliyusanichedi131]

Wow! that's nice, till the time.@@PracticalEnthusiast

[@aliyusanichedi131]

But peter is like U said the bike has 40,000 miles ryt, is that not too much for the bike?

[@alexandrupetrean5886]

@@aliyusanichedi131 as long as its running its fine

[@skapemaster2]

What is the mileage on this bike

[@PracticalEnthusiast]

It has around 42,000 miles.

[@nomusplenus]

take off. clean. put back on. change oil once a year.

[@AlexanderTatsumaki]

The discs are not clean

[@ZuminaZX]

resurface your rotors

[@beholderlt]

congrats on ruining completely fine pistons too, next time just put a rag on it so they don't fly