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**s1d** · 10-02-2018, 02:28 PM

Re: Honda CBR 250R

Originally posted by Om1234 View Post

reservoir means the master cylinder?
Also if I do this the air would escape automatically?
Will i have to leave master cylinder or bleeder screw open overnight?
Because i believe that the system is air sealed
From where would the air escape?
Please throw some light on this.

yes, reservoir means master cyl assy on the front.. they are in the same unit (unlike rear where you have the reservoir separate)
air is not going to escape out.
what you do by keeping the lever pressed overnight is letting the air that is in the line rise up (air is lighter so it rises up) in to the reservoir.. clearing the brake lines of air bubbles.
the other way of doing it is by bleeding the brake lines by undoing the bleeder nut and bleeding the lines.
i have posted the steps a few posts earlier that you need to take to be able to sort this issue. and also please get someone like a mechanic to ride the bike and get an opinion.. online discussions will only take you so far

**Om1234** · 10-02-2018, 03:08 PM

Re: Honda CBR 250R

Originally posted by s1d View Post

yes, reservoir means master cyl assy on the front.. they are in the same unit (unlike rear where you have the reservoir separate)
air is not going to escape out.
what you do by keeping the lever pressed overnight is letting the air that is in the line rise up (air is lighter so it rises up) in to the reservoir.. clearing the brake lines of air bubbles.
the other way of doing it is by bleeding the brake lines by undoing the bleeder nut and bleeding the lines.
i have posted the steps a few posts earlier that you need to take to be able to sort this issue. and also please get someone like a mechanic to ride the bike and get an opinion.. online discussions will only take you so far

if the air comes to master cylinder,i can open the cover and put it back again ,air is out.
All well????

**ashwinprakas** · 10-02-2018, 04:44 PM

Re: Honda CBR 250R

Originally posted by Om1234 View Post

reservoir means the master cylinder?
Also if I do this the air would escape automatically?
Will i have to leave master cylinder or bleeder screw open overnight?
Because i believe that the system is air sealed
From where would the air escape?
Please throw some light on this.

As s1d has mentioned.

Originally posted by Om1234 View Post

if the air comes to master cylinder,i can open the cover and put it back again ,air is out.
All well????

Not required, air above the fluid level is fine and normal, air in between is the problem.

**Om1234** · 10-02-2018, 04:54 PM

Re: Honda CBR 250R

Originally posted by ashwinprakas View Post

As s1d has mentioned.

Not required, air above the fluid level is fine and normal, air in between is the problem.

After doing so the braking should be normal,also theres some resistance from front disk brake to the tyre,it is not rotating freely.

**B7ACKTHORN** · 10-02-2018, 05:27 PM

Re: Honda CBR 250R

Originally posted by Om1234 View Post

reservoir means the master cylinder?
Also if I do this the air would escape automatically?
Will i have to leave master cylinder or bleeder screw open overnight?
Because i believe that the system is air sealed
From where would the air escape?
Please throw some light on this.

Mate, take it easy. Googling would yield you some basic info such as what's what. If you've never done a brake bleed before or are short on the right tools, I'd strongly suggest you to take it your nearest neighborhood garage so that they do this for you. Bleeding done wrong can induce more air in the lines and it's such a tiresome process to remove the air all again. The end result would be the same with no feedback and lever being spongy.

In the chronograph of your questions.

Reservoir means the front brake fluid reservoir as a whole with the lever they're termed as master cylinder.
Master cylinder need not be left open over night neither is the bleeder screw.
The system is sealed, you're right, but due to the fluid degrading overtime they suck moisture from air and this forms bubbles which causes spongy brakes.
The air won't escape, it has to be bled. Since the system is sealed, we have to manually remove the air from the lines by bleeding.

Cheers!
VJ

**Om1234** · 10-03-2018, 01:26 PM

Re: Honda CBR 250R

Originally posted by ashwinprakas View Post

Air bubbles can get tricky, you would need to tap the banjo's on both ends with anything blunt to get those tricky bubbles out while bleeding.

There's a more passive means of getting this done by using a zip-tie, just zip-tie the brake lever overnight, the trapped bubbles come up into the reservoir and your lines are clear.

Thanks man,this method solved my problem which was troubling me for days.
You are great.
Now everything is fine
thanks ,thanks a lot bro .

**ashwinprakas** · 10-03-2018, 05:13 PM

Re: Honda CBR 250R

Originally posted by Om1234 View Post

Thanks man,this method solved my problem which was troubling me for days.
You are great.
Now everything is fine
thanks ,thanks a lot bro .

Thank you for the kind words, its good to know that your issue has been resolved.

The method mentioned is a pretty old and common technique, almost a mandate for racers both on trails and tracks.

**B7ACKTHORN** · 10-03-2018, 09:22 PM

Re: Honda CBR 250R

Originally posted by Om1234 View Post

Thanks man,this method solved my problem which was troubling me for days.
You are great.
Now everything is fine
thanks ,thanks a lot bro .

Originally posted by ashwinprakas View Post

Thank you for the kind words, its good to know that your issue has been resolved.

The method mentioned is a pretty old and common technique, almost a mandate for racers both on trails and tracks.

Lovely! That was a lovely tid-bit from Ashwin, problem solved. Were the brakes bled Om1234?

Cheers!
VJ

**Om1234** · 10-03-2018, 09:39 PM

Re: Honda CBR 250R

Originally posted by B7ACKTHORN View Post

Lovely! That was a lovely tid-bit from Ashwin, problem solved. Were the brakes bled Om1234?

Cheers!
VJ

yes,the brakes were bled ,but even after many unsuccessful attempts by various mechanics in my area(they are not capable enough of doing a tough job ,which requires patience) the system had some air ,which resulted in poor braking and disk pad grinding against the rotor,and piston movement was not up to the mark.

But after implementation ashwin's method all parts came back to proper working condition,
good as they were before.
Now brakes are superb.
All thanks to ashwin

**B7ACKTHORN** · 10-03-2018, 09:57 PM

Re: Honda CBR 250R

Originally posted by Om1234 View Post

yes,the brakes were bled ,but even after many unsuccessful attempts by various mechanics in my area(they are not capable enough of doing a tough job ,which requires patience) the system had some air ,which resulted in poor braking and disk pad grinding against the rotor,and piston movement was not up to the mark.

But after implementation ashwin's method all parts came back to proper working condition,
good as they were before.
Now brakes are superb.
All thanks to ashwin

Sweet. Do keep a tab on it for a couple of days to make sure everything's as it should be.

Cheers!
VJ

**Om1234** · 10-03-2018, 10:06 PM

Re: Honda CBR 250R

Originally posted by B7ACKTHORN View Post

Sweet. Do keep a tab on it for a couple of days to make sure everything's as it should be.

Cheers!
VJ

yes. Will keep an eye on fluid level in the master cylinder.
Thanks for your concern Vijay Bro.

**pinkesh2703** · 10-06-2018, 10:19 AM

Re: Honda CBR 250R

I've lost my user manual. Is there any way to get it in PDF ?
I own 2017 CBR 250r abs ver.

**sreejesh613** · 10-06-2018, 11:15 AM

Re: Honda CBR 250R

Owners manuals of every Honda motorcycle sold in India is now available in their website.

Originally posted by pinkesh2703 View Post

I've lost my user manual. Is there any way to get it in PDF ?
I own 2017 CBR 250r abs ver.

https://www.honda2wheelersindia.com/...eByProduct/1/4

**DigantRai** · 10-06-2018, 11:27 AM

Re: Honda CBR 250R

Originally posted by pinkesh2703 View Post

I've lost my user manual. Is there any way to get it in PDF ?
I own 2017 CBR 250r abs ver.

Here is the link:

https://www.honda2wheelersindia.com/assets/FAQ/MaintenanceSchedule/32141153-a1af-49d6-bbbb-8d565fd86e42Owners_Manual_-_CBR250R.pdf

**pinkesh2703** · 10-06-2018, 11:32 AM

Re: Honda CBR 250R

Thx a lot Sreejesh n Digant.

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