Re: Honda CBR 250R

We can use the stock accelerator cables. But for the clutch we can use honda cb shine's clutch cable. The clip ones are significantly higher than the stock one. Long rides will become piece of cake, i completed more than 15k kms with this set up

Re: Honda CBR 250R

Hi folks,
I am facing a weird issue in my CBR. Whenever bike is going over a bump, it makes a screeching noise from rear suspension. I've checked the torque on swingarm and suspension components. Suspension is perfectly silent when I try to push the bike along with a heavy weight pillion. It only makes sound when it is in motion.
I've checked and found that chain is not touching anywhere. What can be the possible culprit?

Re: Honda CBR 250R

How old is your bike? It can be perhaps due to the rear pro-link unit requires greasing or the PL unit bearings may have gone bad. The PL unit has arms which are then connected to the rear shock absorber. The Pro Link or PL unit also has needle bearings which should be greased periodically. In case of screeching, remove rear shocker unit along with the Pro Link arms, and grease the bearings. Your SVC or a good local mechanic do it for you. Also check for the needle bearing condition and replace if necessary.

Cheers!
VJ

Re: Honda CBR 250R

Hello guys.. Posting here after a long long time.. I believe last time was when I had a Benelli 300. It was replaced with a CBR250r exactly a year ago.

I have already completed a little over 15,000 kms on the CBR. Very happy with the bike, its awesome.
Currently I am using the Motul 7100 and the bike is buttery smooth. I am getting a consistent fuel economy, between 29-31 kmpl in Mumbai traffic.
I can write down a comparison between the Benelli 300 and CBR 250 if you want. But some other day.

A few issues with my bike as of now are:

1. The rubber slider which protects the chain from rubbing on the swing arm keeps breaking(replaced twice till now). I really need a permanent solution for this.
2. The bike handle wobbles when between 65 - 80 kmph; not above, nor below speeds. However, there is no extra or uneven tyre wear on the front tyre.
3. Engine knocks when I try to pick up speed quickly when at around 5k rpm and 3rd gear. The bike is not at very low speeds at that time, but at any speed, when I twist the throttle around 5k rps, it knocks. What can be the issue?
4. The CBR leans too much on the stand, is there a way to fix the stand rather than replacing it?
5. The nut between the saree guard and the rear footrest has been missing since a long time, tried multiple times at the svc, but no luck getting it, given up now. Tied it with a couple of zip ties with some styrofoam in the middle for no vibrations..

Also, I need a front mudguard extension, any ideas?

Points 1, 2 and 3 are of some concern , but none that do not let me use the bike daily. But better to get them fixed before I start my long journeys on her.

Re: Honda CBR 250R

My bike is 8 years old. The problem started after I replaced my chain sprocket set. The mechanics are morons. I prefer to do things by myself till I don't require any special tools. While the swingarm and PL were opened in order to replace chain, I inspected the needle bearings and bushes myself. I smeared them with Grease before assembling. The components appeared fine to me with no scoring marks or play.

☹️

Re: Honda CBR 250R

If the sound is heard when the vehicle is in motion, then it's better to check the rear wheel bearings also. If the rear wheel bearing is shot or is not greased well, some sounds come eventually, but again that's just a speculation without actually having to inspect the bike visually. Also, check your chain slack, too tight a chain slack too will produce some squeals. If your wheel bearings are good, I'd recommend you inspect your PL links once again, and get your shock absorber inspected. Keep your observations posted.


1. Use a small zip tie and make sure it's tightened in between the slider and the metal swingarm. This method works well, as for some the grommet in the slider and the hole in the swingarm do not match. In that case, cut the grommet and use a black zip and clamp it down, it won' budge.

2. If the handlebar T stem is either a wee bit tighter or on the looser side, it will wobble at certain speeds. Also, if the handlebar bearings are shot, the same thing will happen. Get your T stem adjusted to see if it helps, if not, your bearings are to be replaced, considering your tire wear, pressure are all correct.

3. Bad fuel and bad shifting. The CBR mildly knocks at that 3.8 to 4.5k ish if the RPM is low and the load is high. Make sure you have the RPMs maintained post 4.5k for good shifting and knock-less engine.

4. Jugaad fix. Go to your nearest welder. Cut the bottom flat piece of the stand, use a tube of similar size and increase the length of the stand by welding a small piece according to you angle, you're all set. Too much height and you will make the bike stand upright and can be an irritant. Make sure you increase it to like 2.0 to 3 mm max, and it should be okay. But, you must check that yourself depending on your requirement.

Cheers!
VJ

Re: Honda CBR 250R

Hello there,

On the front mudguard extension, you can use the KTM Duke's extension for the same purpose. Attaching some photos on the part number, cost, welding required and improvements done, please refer.

Also, this modification saves the grime from spraying on the radiator, but it doesn't protect the exhaust header pipe from getting sprayed. Can't comment about pebbles, but I'm already using a radiator guard from Carbon Racing.

P.S: As shown in the third photo, please use a double sided tape between the mudguard and the extension (shown in red) to avoid the extension surface (shown in yellow) from touching the tyres. Has worked well for me so far. (~5000 KM's).

Re: Honda CBR 250R

As to mudguard extension, I would recommend everyone to read the following thread. It just clicked me, after Manas posted this post. This flap is cheaper, easier to install and remove plus, has adequate gap and no mare, taping, m-sealing and what not. Hope it helps. Manas, how's the progress on your motorcycle?


[MENTION=75608]RoadRanger[/MENTION], check the link below where a fellow rider installed a cheper, better version of the flap.



Cheers!
VJ

Re: Honda CBR 250R

Thx a lot for sharing. I just have some queries.
From where did u buy Apache's handle bar n how much u paid for it ?
Are there any issues after installing RTR's handlebar like stability, vibration ?
Can we back to stock handle bar incase if we don't like this set up ?

I would love to see ur CBR's photos with this handle bar.

Re: Honda CBR 250R

Hi guys,

I bought a pre-owned 2018 CBR last week. When I got its pollution levels checked, the PUC guy told me that the pollution levels were much higher than usual for this bike and asked me to get the bike serviced soon. The bike was serviced 3 days before I bought it and I have the receipt from Honda SVC.

The pollution results are as follow:
CO: 0.543% (the PUC guy said that this should be around 0.05-0.1%)
CO-CORRECTED: 0.543%
HC: 74.0 PPM
CO2: 6.59%
O2: 14.33%

What could be the reason for this?

Re: Honda CBR 250R

Did you check another pollution center? Sometimes, the pollution machines themselves aren't calibrated in the first place. Secondly, HC and CO seems to be on the higher side, meaning the combustion isn't happening as efficiently as it should be, probably due to bad fuel and or dirty plugs. Tagging @psr sir here, he can throw some light on this one.

Cheers!
VJ

Re: Honda CBR 250R

Like VJ said the combustion is not proper..mostly bad petrol...if you observe the reading both CO2 and Oxygen are present . ...and O2 is at a higher level indicating poor combustion.....
Take the bike to another Pollution Testing Center and repeat the test again...just to know if the present readings are acceptable.
Good Luck.

Re: Honda CBR 250R

get it tested at another place. am not sure about the safe range, checked the puc on my bikes but unfortunately the info isn't clear on them.
maybe someone with a cbr can share info about their puc readings.

a bad o2 sensor might also cause excess emissions, since the ecu isn't able to adapt fueling properly.

edit: here is a link specifying the limits https://www.araiindia.com/CMVR_TAP_Documents/Part-01/Part-01.pdf
it says CO 3.5% and HC ppm being 4500.. on my ktm for eg it reads 1.06% and 0964 respectively.

Re: Honda CBR 250R

I bought it from tvs showroom. It is way costlier than our stock ones,around 1.5 k per piece , total around 3k. Its a direct fit, so u can go back to stock ones when ever you want. Vibrations and stability are pretty much similar

Re: Honda CBR 250R

Bajaj's PDI says 1.5-2.5% CO for both Dominar 400 and RS 200. HMSI recommends 0.7-0.8% CO for BS4 (Carb) Hornet. 0.01-0.05% as claimed by the PUC guy seems very low for the CBR250R - is that even achieve-able ? What's worrisome here is the high O2, as pointed out by psr sir. CO2, I won't worry as CO + O2 -> CO2; but another thing to remember is CBR250R doesn't have secondary air injection (and so do other FI vehicles).