Hello folks.

I ride a 2015 CBR250R, 49700kms odo. From the past 6-7 days i heard a strange whining noise from the engine when i accelerated the bike. Yesterday morning, i fired her up and i felt like something broke inside the engine, but i continued to ride, within 300 metres, the bike started sounding like a tractor. I suspected that the timing chain has gone loose or some problem with CCT as the bike was running just fine apart from the noise. I just faced hard gear shifts apart from the noise.

I took the bike to a nearby garage and asked the guy to check it out and kept the bike there till the.evening as i had some important work. The mechanic told me that the timing chain has broken and some links of the chain fell inside the crankcase.
The mechanic also told me that he needs to open the entire engine to see other damages, which i feel is not necessary. I think he might be doing it just to earn some extra money.

I have procured the necessary spare parts i.e timing chain, Head cover gasket, head gasket, right crankcase gasket, oil and coolant.

I need to know that are there any chances that the broken pieces of the chain can enter the cylinder block or gearbox? If that is so, then i might consider getting the engine thoroughly checked from a good mechanic.

Also is it really necessary to change both the rubber pads the hold the timing chain together as it is really hard to find these in the SVCs. Also please do share how much would be the cost of getting the above mentioned work done from a good SVC or a good garage. I am located in Pune.

Thanks.

has it been verified that the timing chain indeed broke as the bike wont be running at all, and yes if the parts have fallen down yo wont really know where all its gone if its smaller chunks, the filter should be able to catch most.

but if that would have really happened the bike would not be running at all. get the initial daignosis done from the ASC and avoid outside mechanic unless that guy is known and competent.

When the mech opened up the rignt gasket, we observed that only the chain tensioner had broken into pieces.Timing chain did not break off completely It was still in its place. Changed both the items and everything's fine now.

One more thing i want to ask, I want to get the front caliper overhauled, the pistons are a bit sticky making the front wheel jam. I am searching for the o-rings and as always Honda ones are available nowhere. The sizes of the o-rings are 30mm and 32 mm. Any idea if any other bike would have the same size o-rings? Tried Fz,R15 ones, they are small. If someone could point out that would be really helpful.

thank you.

Hi,

For anybody who is having a hard time looking for brake pads for Honda CBR 250R ABS model from their respective Honda Service centres or spares shop, I had a chat with Nikavi - Bafna Automotive Overseas company which manufactures OEM and aftermarket parts for various two wheelers and four wheelers in India and abroad.

Following are the models which are a direct fit for Honda CBR 250R (Do note this is for C-ABS Model only):


1) Front Brake Pads:



2) Rear Brake Pads:

https://www.amazon.in/gp/product/B08...?ie=UTF8&psc=1

I will be testing them out on my "Little Bird" once the stock pads wear out completely hopefully whenever this pandemic lets us have some relief once and for all.


Cheers,

Hi Shv18, I am also looking for front brake pad for my CBR250R ABS version. The OEM ones cost 2.2k and since my usage is very less, i do not want to spend so much unless there is no cheaper alternative. Looking at the product in the link you shared, the ratings are pretty bad for the front pad. Can you confirm you got it from that link too ? and when will you be fitting it in your bike ?

As mentioned just a post above. I will wait till the current OEM stock ones doing duty on my steed wear out and then only shall get on with the experiment. Amazon and its reviews are highly biased and unreliable so i wouldn't sweat on it.

You can also check about the compatibility with your specific motorcycle from Nikavi directly (email ID: info@nikavi.in) as CBR has two iterations of ABS model where the first gen came with Combined-ABS/C-ABS which has a three piston front brake Nissin caliper while the later gen 2018 model came with Dual channel ABS which has a 2 piston front brake Nissin caliper hence both of them have different sized pads.

It has been shared by one of the riders in some other forum that Honda CB Hornet front brake pads are a direct fit on CBR250R (C-ABS) and costs around Rs. 700-800/- for the front. However, i haven't tried it so can't comment on the same.

Cheers,

Some OEM spares for sale for the CBR. I thought posting it here rather than in the classifieds would be helpful and easy to access. The following will be sold as a complete set.

[B]5 x Oil Filter Cover Gasket








Interested parties can DM me, I can share the total and shipping.

Cheers!
VJ

Hi Shv18, I am also looking for front brake pad for my CBR250R ABS version. The OEM ones cost 2.2k and since my usage is very less, i do not want to spend so much unless there is no cheaper alternative. Looking at the product in the link you shared, the ratings are pretty bad for the front pad. Can you confirm you got it from that link too ? and when will you be fitting it in your bike ?

When the mech opened up the rignt gasket, we observed that only the chain tensioner had broken into pieces.Timing chain did not break off completely It was still in its place. Changed both the items and everything's fine now.

One more thing i want to ask, I want to get the front caliper overhauled, the pistons are a bit sticky making the front wheel jam. I am searching for the o-rings and as always Honda ones are available nowhere. The sizes of the o-rings are 30mm and 32 mm. Any idea if any other bike would have the same size o-rings? Tried Fz,R15 ones, they are small. If someone could point out that would be really helpful.

thank you.