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**Sp!tfire** · 07-20-2017, 01:57 AM

Re: Honda CBR 250R

Dear fellow CBR owners..Does the CBR heat up quite easily even when ridden for just 7-8 kms in moderate traffic? I rode the bike for about 7-8 kms in evening today at a stretch and when i was about to park, i could feel engine quite heated up and a burning smell emanating from the engine bay. Previously too i have noticed the radiator fan coming on very often even when the bike is ridden for short distances. Is this normal? I have only used the bike for a month or so wanted to know whether this is normal or something that needs attention?

**B7ACKTHORN** · 07-20-2017, 03:20 AM

Re: Honda CBR 250R

Originally posted by Sp!tfire View Post

Dear fellow CBR owners..Does the CBR heat up quite easily even when ridden for just 7-8 kms in moderate traffic? I rode the bike for about 7-8 kms in evening today at a stretch and when i was about to park, i could feel engine quite heated up and a burning smell emanating from the engine bay. Previously too i have noticed the radiator fan coming on very often even when the bike is ridden for short distances. Is this normal? I have only used the bike for a month or so wanted to know whether this is normal or something that needs attention?

Considering it's a B2B and moderate traffic yes, it's normal. The 250 does heat up when riding at slow speeds, you can feel whiff of hot air caressing your calves. Pretty much normal. The fan kicks in swiftly and the temperature is always under check. The CBR has one of the robust cooling systems in the Indian motorcycle scene. Make sure your coolant level is right and if you haven't changed your coolant in more than a year or never checked, now would be the good time to check and top up if necessary. On how to check your coolant level, check your owners' manual.

Cheers!
VJ

**Ave2592** · 07-20-2017, 03:47 AM

Re: Honda CBR 250R

Originally posted by Sp!tfire View Post

Dear fellow CBR owners..Does the CBR heat up quite easily even when ridden for just 7-8 kms in moderate traffic? I rode the bike for about 7-8 kms in evening today at a stretch and when i was about to park, i could feel engine quite heated up and a burning smell emanating from the engine bay. Previously too i have noticed the radiator fan coming on very often even when the bike is ridden for short distances. Is this normal? I have only used the bike for a month or so wanted to know whether this is normal or something that needs attention?

Hi. I am facing the same issues myself currently. And the burning smell is a shocker to me. Can anybody shade some light about the burning smell for the engine bay?

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**harshil3604** · 07-20-2017, 11:28 AM

Re: Honda CBR 250R

https://youtu.be/Zo0xD77Sgw0

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**Sp!tfire** · 07-20-2017, 11:46 AM

Re: Honda CBR 250R

Originally posted by B7ACKTHORN View Post

Considering it's a B2B and moderate traffic yes, it's normal. The 250 does heat up when riding at slow speeds, you can feel whiff of hot air caressing your calves. Pretty much normal. The fan kicks in swiftly and the temperature is always under check. The CBR has one of the robust cooling systems in the Indian motorcycle scene. Make sure your coolant level is right and if you haven't changed your coolant in more than a year or never checked, now would be the good time to check and top up if necessary. On how to check your coolant level, check your owners' manual.

Cheers!
VJ

Thanks VJ. Heating issue seems to be normal then but how about the burning smell, Is that normal too when the engine is quite heated up? I bought the bike pre owned a month back and during service i had the coolant level checked and topped up. I am not sure whether the previous owner has ever changed it..the bike has done about 17k kms. Can the engine heat be also attributed to old used up engine oil?

**s1d** · 07-20-2017, 02:05 PM

Re: Honda CBR 250R

Originally posted by Ave2592 View Post

Hi. I am facing the same issues myself currently. And the burning smell is a shocker to me. Can anybody shade some light about the burning smell for the engine bay?

the 'burning' smell could be anything. could be a sticker or the dirt that sometimes gets baked on to the lower part of the engine case. or it's simply the engine heat reacting with the rubber hoses/metal/painted surfaces causing a mild smell.. nothing to worry. this is what is probably happening in your case. if its a new bike, let it clock a couple 1000km and then check and compare with another cbr.

if the smell is very strong & unpleasant it could be coming from the clutch plates.. which shouldn't happen normally. this indicates worn/burnt plates or bad oil. i would personally never run a w30 oil on a motorcycle that's ridden in India. Try switching over to something like the shell ax7/shell advance ultra/motul 7100 10w40 grade.

**B7ACKTHORN** · 07-21-2017, 12:07 AM

Re: Honda CBR 250R

Originally posted by Sp!tfire View Post

Thanks VJ. Heating issue seems to be normal then but how about the burning smell, Is that normal too when the engine is quite heated up? I bought the bike pre owned a month back and during service i had the coolant level checked and topped up. I am not sure whether the previous owner has ever changed it..the bike has done about 17k kms. Can the engine heat be also attributed to old used up engine oil?

Burning smell can be induced by a couple of things, mainly, oil residue on the engine and crud on the engine itself which get cooked due to heat produced by the engine. So this is why you smell a pungent, oil burnt smell when the bike stops, it's either due to oil and crud being cooked due to engine heat. Secondly and very importantly, plastic parts naturally emit toxic fumes when heated up, though you can't see them, when heated up by engine, plastic and ABS items in and around the engine too get heated up and emit the type of smell one would find pungent. It's common even on some superbikes and high end bikes.

Cheers!
VJ

**harshil3604** · 07-21-2017, 12:43 AM

Re: Honda CBR 250R

Originally posted by harshil3604 View Post

https://youtu.be/Zo0xD77Sgw0

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What do u all think abt this??

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**harshil3604** · 07-21-2017, 10:59 AM

Re: Honda CBR 250R

Originally posted by harshil3604 View Post

What do u all think abt this??

Sent from my Redmi Note 3 using xBhp.com mobile app

I have made this video so that you all could know what i was talking about last time. This sound could be of what? it comes at 4k rpm disappears at 4.5 and no sound above or below 4k rpm.🤔

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**kannanmr16** · 07-21-2017, 11:57 AM

Re: Honda CBR 250R

Originally posted by harshil3604 View Post

I have made this video so that you all could know what i was talking about last time. This sound could be of what? it comes at 4k rpm disappears at 4.5 and no sound above or below 4k rpm.[emoji848]

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I have similar sound starting from 3.5k rpm all the way to 4.5k. I think it is the CCT issue that we all know about. There was a guy who fixed the old CCT but tightening it a little after removing it, I am not sure if it was here or on tbhp. If you find it do let us know.

**harshil3604** · 07-21-2017, 12:08 PM

Re: Honda CBR 250R

Originally posted by kannanmr16 View Post

I have similar sound starting from 3.5k rpm all the way to 4.5k. I think it is the CCT issue that we all know about. There was a guy who fixed the old CCT but tightening it a little after removing it, I am not sure if it was here or on tbhp. If you find it do let us know.

Will try that and let u know

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**harshil3604** · 07-21-2017, 03:52 PM

Re: Honda CBR 250R

Originally posted by kannanmr16 View Post

I have similar sound starting from 3.5k rpm all the way to 4.5k. I think it is the CCT issue that we all know about. There was a guy who fixed the old CCT but tightening it a little after removing it, I am not sure if it was here or on tbhp. If you find it do let us know.

It didn't work. You try it and tell me🙁

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**kannanmr16** · 07-21-2017, 03:56 PM

Re: Honda CBR 250R

Originally posted by harshil3604 View Post

It didn't work. You try it and tell me[emoji853]

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When I said tightening it, I didn't mean the CCT, but once you remove it there is screw inside it that you have to turn left or right to make it elongate/shorten I think.

Right now I am just waiting for [MENTION=20218]blackthorn[/MENTION] take on this, maybe he has seen it before.

**harshil3604** · 07-21-2017, 04:02 PM

Re: Honda CBR 250R

Originally posted by kannanmr16 View Post

When I said tightening it, I didn't mean the CCT, but once you remove it there is screw inside it that you have to turn left or right to make it elongate/shorten I think.

Right now I am just waiting for [MENTION=20218]blackthorn[/MENTION] take on this, maybe he has seen it before.

Done that only bro. Took all the tension out by rotating it to the all the way right and let it go but no significant difference.

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**kannanmr16** · 07-21-2017, 04:38 PM

Re: Honda CBR 250R

Originally posted by harshil3604 View Post

Done that only bro. Took all the tension out by rotating it to the all the way right and let it go but no significant difference.

Sent from my Redmi Note 3 using xBhp.com mobile app

In that case, changing it will be the only option unfortunately.

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