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**Rethin** · 05-01-2018, 09:43 PM

Re: Honda CBR 250R

Can we put a non abs brake pad to the abs model?

**krish2778** · 05-02-2018, 10:46 AM

Re: Honda CBR 250R

Originally posted by Rethin View Post

Can we put a non abs brake pad to the abs model?

Nope.
The Non-ABS is 2 pot calipers, the ABS ones are 3 pot, so basic configuration itself is different. The same reason will not allow the pads to fit in.

Cheers
Ride Safe
Krishna

**theironhorse99** · 05-02-2018, 02:13 PM

Re: Honda CBR 250R

Originally posted by D.j View Post

Thanks Ave2592 , i am surely inclined to do the job of throttle body cleaning and since it is very dusty here in gurgaon .
Any idea what is the cost involved?
Also i always do rev matching while dowbshifting .

the service guys do not have proper cleansers. buy 3M carb/throttle body cleaner thats sensor safe costs about 300 bucks. buy it and then go to the SVC and get it cleaned.

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

Originally posted by D.j View Post

Definately MPSR is a highly recommend tyres for our stead but it is hard to find in stock size in offline market only rear tyre .
Yeah true there will be some speedo error it can be less speed on speedo and actual speed is more or Vice versa , but I have not got a definate answer as CBR takes speed from sensor and not from tyres .
Many people opted for 150 section as not many options were available in 140 section in Radial tyres.
The MPSR pair is costing somewhere around 9200/- for a pair .

cbr takes speed from the sensor sitting inside the crankcase. CBR speedo already runs on a 5-6% error compared to actual speeds. with a 150/60 tyre the total circumference changes aby another 4-5% so there will be a total of 10% speedo error. so at speedo indicated 100 kmph you will be actually doing 90-91kmph with a 150/60 tyre. you will see marginal increase in acceleration but drop of top-end and FE.

**epsilondav** · 05-04-2018, 01:03 AM

Re: Honda CBR 250R

Hello members, recently I have noticed a wierd problem with my CBR, when the bike is cold stared, initially the engine RPM drops slightly below 1500 and then gradually rises to 2000 RPM. It takes around 10-15s to reach 2000 RPM. During that period if I try to open throttle, then the bike stalls and RPM rise to throttle input is not linear rather it feels as if the bike is hesitating to raise the engine RPM. Please note that this problem happens only during a cold start and within the time that the bike takes to reach 2000 RPM. This behaviour is weird because initially when everything was OK, even after a cold start the RPM would suddenly rise to 2000 without any delay and there was no hesitation to throttle input.

Is there any problem with the FI sensors or any problem with injectors or its just normal behaviour?? Because for me this behaviour is abnormal. Has anyone experienced this before?? The bike is just 14months old.

**theironhorse99** · 05-04-2018, 03:13 PM

Re: Honda CBR 250R

Originally posted by epsilondav View Post

Hello members, recently I have noticed a wierd problem with my CBR, when the bike is cold stared, initially the engine RPM drops slightly below 1500 and then gradually rises to 2000 RPM. It takes around 10-15s to reach 2000 RPM. During that period if I try to open throttle, then the bike stalls and RPM rise to throttle input is not linear rather it feels as if the bike is hesitating to raise the engine RPM. Please note that this problem happens only during a cold start and within the time that the bike takes to reach 2000 RPM. This behaviour is weird because initially when everything was OK, even after a cold start the RPM would suddenly rise to 2000 without any delay and there was no hesitation to throttle input.

Is there any problem with the FI sensors or any problem with injectors or its just normal behaviour?? Because for me this behaviour is abnormal. Has anyone experienced this before?? The bike is just 14months old.

there can be multiple reasons for this.

clogged air filter.
clogged injectors
else bad fuel or even a choking fuel filter.

how many km done ?
when was the last svc done ?

**epsilondav** · 05-04-2018, 03:22 PM

Re: Honda CBR 250R

Originally posted by theironhorse99 View Post

there can be multiple reasons for this.

clogged air filter.
clogged injectors
else bad fuel or even a choking fuel filter.

how many km done ?
when was the last svc done ?

Total= 5500 km and last service at 5000km.

**sidhuasg** · 05-06-2018, 11:28 PM

why does cbr 250r radiator fan running even the ignition is off ??

Is there anyway sought out the issues ????

Even I locked the handlebar removed the key still the fan is running.
Anyway to stop it ?

**Ave2592** · 05-07-2018, 10:03 AM

Re: Honda CBR 250R

Originally posted by D.j View Post

Thanks Ave2592 , i am surely inclined to do the job of throttle body cleaning and since it is very dusty here in gurgaon .
Any idea what is the cost involved?
Also i always do rev matching while dowbshifting .

Hi. Sorry. No idea about it since I haven't had the throttle body cleaning needed yet. My bike is done only 15k kms in 14 months now.

**Ave2592** · 05-07-2018, 10:05 AM

Re: Honda CBR 250R

Originally posted by D.j View Post

Recently switched to this tyre . I can say this is only for corner cravers . Just completed approx 100 kms on them now .
They are more confidence inspiring on corners .
One thing i see is that the 140 section tyre looks small width wise on cbr . May be because of its round profile .
I would like to hear how the 150 section tyre looks and feel on cbr250r .
One more thing the 140 section tyre is a R series tyre whuch means Radialano , however the old series is still ZR .
For example
140/70/R17 66H
150/60/ZR17 - these are W rated tyres .
Even the front comes in two forms .
R and ZR .
The ZR series has a ROSSO II embossed on tyre edge .
P.S All information about R and ZR is from cbr 250 international forums.

Using 150 section will not give you proper reading on your speedo as the calibration on the speedo is done according to the stock tyre size and the stock sprocket size.

**Ave2592** · 05-07-2018, 10:12 AM

Re: Honda CBR 250R

Originally posted by epsilondav View Post

Hello members, recently I have noticed a wierd problem with my CBR, when the bike is cold stared, initially the engine RPM drops slightly below 1500 and then gradually rises to 2000 RPM. It takes around 10-15s to reach 2000 RPM. During that period if I try to open throttle, then the bike stalls and RPM rise to throttle input is not linear rather it feels as if the bike is hesitating to raise the engine RPM. Please note that this problem happens only during a cold start and within the time that the bike takes to reach 2000 RPM. This behaviour is weird because initially when everything was OK, even after a cold start the RPM would suddenly rise to 2000 without any delay and there was no hesitation to throttle input.

Is there any problem with the FI sensors or any problem with injectors or its just normal behaviour?? Because for me this behaviour is abnormal. Has anyone experienced this before?? The bike is just 14months old.

Just let the bike warm up the engine. Let the engine oil spread over the engine area. Usually people wait for 15-20 secs before they take off with their bike but I actually wait until I get 1 bar of heat on my gauge before riding it. Give it a try.

**arvstreetracer** · 05-07-2018, 10:23 AM

Re: Honda CBR 250R

Originally posted by epsilondav View Post

Hello members, recently I have noticed a wierd problem with my CBR, when the bike is cold stared, initially the engine RPM drops slightly below 1500 and then gradually rises to 2000 RPM. It takes around 10-15s to reach 2000 RPM. During that period if I try to open throttle, then the bike stalls and RPM rise to throttle input is not linear rather it feels as if the bike is hesitating to raise the engine RPM. Please note that this problem happens only during a cold start and within the time that the bike takes to reach 2000 RPM. This behaviour is weird because initially when everything was OK, even after a cold start the RPM would suddenly rise to 2000 without any delay and there was no hesitation to throttle input.

Is there any problem with the FI sensors or any problem with injectors or its just normal behaviour?? Because for me this behaviour is abnormal. Has anyone experienced this before?? The bike is just 14months old.

Looks like a problem with IACV. IACV stands for Idle Air Control Valve and sits above the throttle body towards right side. To reach that spot, you would need to remove fairings and lift the tank a bit. Remove all electrical sockets and spray wd40 directly on contact points. If this won't work, you would need to replace IACV.
IACV

Connector

**epsilondav** · 05-07-2018, 12:20 PM

Re: Honda CBR 250R

Originally posted by Ave2592 View Post

Just let the bike warm up the engine. Let the engine oil spread over the engine area. Usually people wait for 15-20 secs before they take off with their bike but I actually wait until I get 1 bar of heat on my gauge before riding it. Give it a try.

I do the same, wait till RPM returns to 1500, but this behaviour is weird and clearly not normal. Hence, I asked. But thank you for guiding.

**epsilondav** · 05-07-2018, 12:21 PM

Re: Honda CBR 250R

Originally posted by arvstreetracer View Post

Looks like a problem with IACV. IACV stands for Idle Air Control Valve and sits above the throttle body towards right side. To reach that spot, you would need to remove fairings and lift the tank a bit. Remove all electrical sockets and spray wd40 directly on contact points. If this won't work, you would need to replace IACV.
IACV

Connector

Will definitely suggest the SVC guy. Lets see if he can diagnose the issue.

**sidhuasg** · 05-07-2018, 03:39 PM

Re: Honda CBR 250R

Can anyone help me out my cbr 250r radiator fan running even the ignition is off ????

**B7ACKTHORN** · 05-08-2018, 01:38 AM

Re: Honda CBR 250R

Originally posted by sidhuasg View Post

Can anyone help me out my cbr 250r radiator fan running even the ignition is off ????

Check your fan relay. The CBR has a fan relay placed towards the left of the motorcycle, inside the left fairing, can be seen when you peek inside the bike from the handlebar gap. You will have two relays FROM L TO R

Fan relay and the other is the fuel pump relay. If the fan relay has failed, you'd have your fan running constantly. Get your relay replaced.

Cheers!
VJ

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