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**Divya Sharan** · 02-12-2014, 08:05 AM

Re: Hero Honda Karizma ZMR

Originally posted by kmk0311 View Post

Guys... need some help.

Would cleaning the rear disc and bleeding the rear brake oil help in removing the squeaky rear disc noise?? Each time I apply the rear brake it starts to screech!!

Also, I primarily use the front disc, and when I noticed both the discs, the rear one had worn out more.

Its just dust particles playing havoc. You bought the bike recently if memory serves right. What's the ODO count?
A pressurized air wash of the rear disc would solve it. Else, get a pressurized water wash and don't ride until it gets dry (water attracts dust).

**kmk0311** · 02-12-2014, 07:32 PM

Re: Hero Honda Karizma ZMR

Originally posted by Divya Sharan View Post

Its just dust particles playing havoc. You bought the bike recently if memory serves right. What's the ODO count?
A pressurized air wash of the rear disc would solve it. Else, get a pressurized water wash and don't ride until it gets dry (water attracts dust).

Your memory is perfect!!

I've done 1100kms as of date. Does it happen only in the rear disc or you've come across some person who had this problem in the front disc also?

----consecutive posts auto-merged-----

Originally posted by nadz11.ns View Post

If its only squeaky noise you are concerned about, clean the disc for any sand particles and check the condition of brake-pads. If they are worn out, then the metal to metal (pad to disc) contact is the reason for the noise and also for more wear of the disc.
Most probably it would be due to the worn out pads, as you say the noise happens everytime you apply brake.

I don't think the brake pads are worn out mate, the odo reading is just 1100 kms and I hardly use the rear brake.. Only at speeds around 10kmph in traffic.. Rest of the time I use only the front!

* Btw I cleaned the disc using normal dry cloth, and used only the rear brake for a very short ride. The sound increased first, and then reduced. But not fully, its still present, but not as before..

**Divya Sharan** · 02-12-2014, 09:25 PM

Re: Hero Honda Karizma ZMR

Originally posted by kmk0311 View Post

Your memory is perfect!!

I've done 1100kms as of date. Does it happen only in the rear disc or you've come across some person who had this problem in the front disc also?

Thanks for the compliment. It can happen with any of the disks.

**abhi7013** · 02-12-2014, 09:50 PM

Re: Hero Honda Karizma ZMR

Originally posted by kmk0311 View Post

Your memory is perfect!!

I've done 1100kms as of date. Does it happen only in the rear disc or you've come across some person who had this problem in the front disc also?

----consecutive posts auto-merged-----

I don't think the brake pads are worn out mate, the odo reading is just 1100 kms and I hardly use the rear brake.. Only at speeds around 10kmph in traffic.. Rest of the time I use only the front!

* Btw I cleaned the disc using normal dry cloth, and used only the rear brake for a very short ride. The sound increased first, and then reduced. But not fully, its still present, but not as before..

Happens with me all the time. Just take a wet cloth and wipe both sides of the disc. Then partially apply the brake and rotate the wheel with your hand to a full 360 degrees. The pads will take out dirt and water by doing so. After that, again wipe the disc. I do the same once a week. Cause there's lot of dirt near our college.

**Divya Sharan** · 02-13-2014, 12:58 PM

Re: Hero Honda Karizma ZMR

Was re-reading older posts to find a solution to my bike's FI light on start-up issue.

Came upon this post.

Originally posted by Bibhudatta View Post

Luckily I was reading about FI & somewhere I had come up with a similar report today. What the expert said is you gotta check the health of your oxygen sensor. O2 sensor is nothing but a galvanized battery which sends out signals in form of voltage output. ECU prepares the AF mixture (either lean, super lean, rich or very rich) depending on the amount of voltage received. There have been quite a few cases reported where the O2 sensor in pgmfi fails to work properly, resulting in a wrong voltage signal to ECU. Therefore all of a sudden you start feeling some of loss of power before engine starts pulling with some extra power again.. A case of improper AF mixture for the operating condition of the engine..

Had a discussion with PSR sir too. I'll test the O2 sensor with the multimeter again to check if or not the voltage is in 0.5 range.

BTW, bought Iftex System G for 300 yesterday. Thanks [MENTION=27501]rreneav1987[/MENTION].

**rreneav1987** · 02-13-2014, 01:07 PM

Re: Hero Honda Karizma ZMR

Originally posted by Divya Sharan View Post

Was re-reading older posts to find a solution to my bike's FI light on start-up issue.

Came upon this post.

Had a discussion with PSR sir too. I'll test the O2 sensor with the multimeter again to check if or not the voltage is in 0.5 range.

BTW, bought Iftex System G for 300 yesterday. Thanks @rreneav1987.

Please get the pics and let us know the steps. I have no idea where the O2 sensor is situated or located

**Divya Sharan** · 02-13-2014, 01:37 PM

Re: Hero Honda Karizma ZMR

Originally posted by rreneav1987 View Post

Please get the pics and let us know the steps. I have no idea where the O2 sensor is situated or located

Right side cowl, bang opposite to the fuel pump!

**kmk0311** · 02-13-2014, 03:53 PM

Re: Hero Honda Karizma ZMR

Guys.. had a terrible experience while returning from college today. ( after bunking

) Was cruising at 70 kmph nicely and was about to cross a traffic signal which wasn't working.. the traffic ahead kept moving on so I thought I could get away too, but from NOWHERE the signal turned red when I was just about to cross it!! Traffic from either sides covered half the road and there zero space for me to go through. I panicked, and braked.. The front wheel lost traction and started to fishtail a bit, as I had to overtake a car and stop in front of it, while braking.. so I stopped braking, and brought the bike to its normal position and braked again. All this, and the bike came to a halt in 3.5 seconds, roughly.. after which I had to move the bike backwards using my legs so that the cops wouldn't notice I had crossed the pedestrian crossing and charge a fine. Hehe!!

End of story, now I finally realized the power of our bikes' brakes!

**Divya Sharan** · 02-13-2014, 04:23 PM

Re: Hero Honda Karizma ZMR

Originally posted by kmk0311 View Post

Guys.. had a terrible experience while returning from college today.

1. Fishtail happens due to rear wheel slipping. Hence, you were hard on rear brakes, not front!
2. Lucky for you, our bikes don't have sharp brakes like R15's (they are good, but don't bite as hard) else you'd have been on the ground in no time.

Ride safe.

**kmk0311** · 02-13-2014, 04:28 PM

Re: Hero Honda Karizma ZMR

Originally posted by Divya Sharan View Post

1. Fishtail happens due to rear wheel slipping. Hence, you were hard on rear brakes, not front!
2. Lucky for you, our bikes don't have sharp brakes like R15's (they are good, but don't bite as hard) else you'd have been on the ground in no time.

Ride safe.

Thank you.

I've learnt a lesson today.
Btw I didn't use my rear brake..only the front. my bad, shouldn't have used the word fishtail for the front wheel.. the front wheel started slipping and going sideward. I'm sure of that though..

**saquib3005** · 02-13-2014, 04:31 PM

Re: Hero Honda Karizma ZMR

Originally posted by Divya Sharan View Post

2. Lucky for you, our bikes don't have sharp brakes like R15's (they are good, but don't bite as hard) else you'd have been on the ground in no time.

Ride safe.

Now I would like to ask you, how did you measured the sharpness of rear brakes in R15

. S@@L@ isko bulao re koi G2G pe fir baith k measure karega ye sharpness.

**Divya Sharan** · 02-13-2014, 04:33 PM

Re: Hero Honda Karizma ZMR

Originally posted by kmk0311 View Post

Thank you.

I've learnt a lesson today.
Btw I didn't use my rear brake..only the front. my bad, shouldn't have used the word fishtail for the front wheel.. the front wheel started slipping and going sideward. I'm sure of that though..

That means you'd locked the front.

Then you're extremely lucky that you let go of the brakes in time. Front wheel locks are far more dangerous than rear wheel locks.

Originally posted by saquib3005 View Post

Now I would like to ask you, how did you measured the sharpness of rear brakes in R15

. S@@L@ isko bulao re koi G2G pe fir baith k measure karega ye sharpness.

You need not measure the brake bite sir, as they're not quantitative. They're relative to each other in bikes.
I'd suggest you ride a ZMR and R15 back to back and apply brakes to understand what I'm saying!

**saquib3005** · 02-13-2014, 04:47 PM

Re: Hero Honda Karizma ZMR

Originally posted by Divya Sharan View Post

You need not measure the brake bite sir, as they're not quantitative. They're relative to each other in bikes.
I'd suggest you ride a ZMR and R15 back to back and apply brakes to understand what I'm saying!

Well the braking difference matters, just sharing it that braking system in R15 is Dual Piston calliper, which gives more area for brake pads with even pressure distribution. Larger brake pads absorb more initial heat(less thermal shock) and secondly larger brake pads will have better wear characteristics and a longer life due to even pressure distribution, and thirdly it is able to absorb more unwanted noise and vibration.
I have observed that this feature has helped me in proper braking and also I have not or very rarely faced situations like fishtailing even at higher speeds.
I am not commending the braking of ZMR, but yes R15 brakes are very proper.
Rather I would sayZzMR and R15 are only bikes which doesnt even require ABS(as per my experiences.)

**abhi7013** · 02-13-2014, 04:51 PM

Re: Hero Honda Karizma ZMR

[MENTION=41586]Divya Sharan[/MENTION], from where did you get systemG? Am desperately searching for it in. Bangalore but not able to source it.

Sent from my MT27i using xBhp Connect mobile app

**Divya Sharan** · 02-13-2014, 04:54 PM

Re: Hero Honda Karizma ZMR

Originally posted by saquib3005 View Post

Well the braking difference matters, just sharing it that braking system in R15 is Dual Piston calliper,
Rather I would sayZzMR and R15 are only bikes which doesnt even require ABS(as per my experiences.)

Thanks for the useful gyaan Saquib bhai. Loved the banter though!

BTW, ZMR also has dual piston calipers IMO.

Experts can chip in!

Originally posted by abhi7013 View Post

@Divya Sharan, from where did you get systemG? Am desperately searching for it in. Bangalore but not able to source it.

BP petrol bunk, beside Vaibhav theatre, Sanjaynagar.

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