Re: Honda CBR 250R

Hi,
I have questions about fuel. So I generally fill at normal Shell petrol because I get proper quantity and quality so few weeks back they didn't had normal petrol and I desperately needed fuel so went with the VPOWER the weird thing is the bike feels much smoother and power feels much leaner so I switched to normal and tried again the VPOWER again I can feel the slight difference.

From my understanding its better to stick to normal petrol but in case of VPOWER and normal they both are 91 RON and the difference is the with the additives.
Shall I keep experimenting with VPOWER or any of you have bad experience with it ?
Regards,
Mohan

Re: Honda CBR 250R

I've heard of a case where injectors were clogged due to additives. Personally, I've felt a difference between Shell normal and HP normal. Bike felt more crisp.


Any Shell bunks close to Chetpet? I fill up at Padi Shell, coz its 24x7.


OK, I've changed the CCT at Didar Egmore. They were reluctant to change it, because there was absolutely no sound at normal operating temperature, ie., 3 bars.
Now I checked the vehicle after it cooled, and that annoying katch katch sound has gone. For now.

Re: Honda CBR 250R

unsure on additives but the addons like System-G and Adon-P are to clean the injectors. either fuel should work fine.


25k is early for the tensioner to die . usually last 40k plus but i cant comment on this as mine died too at 30k.



tyre is 150-60 not stock -
headlight of 150r. sure he changed due to cheaper part and must have had a head on collision.
rear side plastics are done. 100% multiple crashes.
indicator broken.

if you buy this even for 60k you'd end up spending another 50k to get this to mint condition. dont even bother for such junk.
by the cosmetic looks of it am sure that owner has abused the engine too.

rather for 85-90k pick up a well maintained CBR and be happy for next 4-5 years.

Re: Honda CBR 250R

Yes, I have already dropped the plan. Will look for something better or to keep P220 for some more time.
Thankyou for replying.

Re: Honda CBR 250R

Well, my riding style is pretty rash this year. I hit ~9.5k rpm in the city almost every day.

The service manager told me that the cam chain also can be changed next time, long with the tensioner. Did anybody do this yet?

Re: Honda CBR 250R

Wow that's some opening up, how do u rev and how often do you change the engine oil?

Re: Honda CBR 250R

Gradually, never full throttle. I'm not giving any suggestions on oil, but I use Honda mineral 10w30 at the moment.

Re: Honda CBR 250R

Can you give some more explanation on that cam chain thing.
How much time they need to change it and for what reasons your service guy suspected that it is nearing its end.

I am due for a that thing. Thats why asking.
Here they are asking me to leave bike for 3 days

Re: Honda CBR 250R


Provided they have the spare on hand, it's less than a 10 minute job. Most dealers are short on CBR 250s spares, they stock mostly for the crowed pullers. CCT replacement is less than 5 minutes and three days is lunacy for a chain tensioner replacement. Demand they get the spare first, in case they are short on spare and then book your appointment.

Cheers!
VJ

Re: Honda CBR 250R

[emoji16] I know that mate.. Even i too mentioned the same thing in post no. #18044
Here it is.


Its hardly a 10 minutes job.

But i am asking for cam chain itself not cct.

Re: Honda CBR 250R

Right. So, if you had to replace the timing chain, it's half a day job, as the head and clutch cover are dismantled, so yes technically a day's worth job. If the SVC is on working on backlog then yes one to two days.

Cheers!
VJ

Re: Honda CBR 250R

[MENTION=80048]RedWingRider[/MENTION]

SVC didn't tell me to change anything. I had requested them to change the CCT, and he casually mentioned that next time the cam chain can also be changed, as it gets worn out. He didn't provide a time frame or an odo reading.

Re: Honda CBR 250R

[MENTION=58594]leech[/MENTION] I'm curious which stretch do you gradually rev upto 9.5 rpm, that's the stock ecu detune in the 6th gear, Someone told me its detuned for better FE correct me if I'm wrong , and wat about piggyback ecu n customizable maps?

Re: Honda CBR 250R

Thanks buddy..
That is precisely what i was asking about.

And yeah they are much more interested in serving activas thats why it is 3 days job according to them.

Re: Honda CBR 250R

you sure 10w30 mineral ??? that black bottle is full synth.. and if its indeed mineral whats your oil drain interval ? 1800-2000 km per cycle ???


cam chain does not die so fast. dont bother what he says. it will last atleast 60k if nothing less. and about the tensioner. i am sure honda have had a bad batch of tensioners failed. i have seen it fail is multiple bikes.


cam chain usually does not go hard or breaks. it wears out with time and gets elongated. sometimes so long then even the far end of tensioner will not keep it to expected tension. now cam chain failing before 50k is a very rare case however you will experience severe vibes , lethargic acceleration due to changed timings of the valves etc.

tensioner again should last longer but seen many cases of failing early including mine.

cam chain will last way longer. dont bother.


there is whole hoopla about someome spreading rumours about the ECU detune specifically only in 6th gear. CBR is 167 kg dry weight and just 26 bhp. if the ECU has to be detuned then it will show effect in all gears and not just top end of 6th gear . this is pure rubbish.

167kg dry and 26 bhp. i believe what its doing is more than enough for that power to weight ratio.

coming to piggyback. there is world of customizations. FFE , headers , o2 sensors playing with maps , high lift cams, rebored with bigger cc cylinder block,
polished head, revised air inlet geometry in head. anything and everything can be done.

if you want reliabilty stick to stock. i have seen 2 bikes with bazzazz sitting on the ramp with blown up engines. its a single cylinder machine.