Re: problems with my cbr250r

Toothpaste part I thought was for cleaning. Btw, my opinion is that for that damage seen in picture, leave it as it is - looks like it is better not to touch it as they are already touching neighboring fins. This surgery of working to make the fins right (back breaking of course!) may work OK when you have small bends in few bent fins.

Re: problems with my cbr250r

Well yes, while cleaning the bike if you use a firm tooth brush you can push the fins back into shape, although it would not be the original shape you can atleast make the fins parallel to the horizontal ones.

Manan.

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The bends in the fins of the radiator around the coolant carrying horizontal ones, the delicate ones.

Manan

Re: problems with my cbr250r

I have seen the AC guys do the same thing.. except they never used tooth paste..

Can you tell me why are you using the toothpaste?? will be effective in cleaning the Oil cooling Radiator too??? I mean like the ones that come in the ZMR/P220/Avenger 220

Re: problems with my cbr250r

Well tooth paste because of it's cleansing properties and the fact that it is closely associated with the tooth brush. Also it is needs less effort to get it to foam, which in my opinion in a delicate area like the radiator too much pressure would be detrimental to the radiator.

With regards to the oil cooled radiators, I think the same would apply because in principle the physical construction of the radiators are similar, except for the liquid that is flowing through it, so yes this method can work. However best to my knowledge the three models you mentioned have radiator guards over the radiator, correct?

Manan.

Re: problems with my cbr250r

You are right about the P220 and the Avenger 220.. but the ZMR doesn't have a radiator guard.. i found the fins a little bent and needs cleaning as it has been raining heavily up here in north and i was riding on the mud.. don't wnna take risk giving it to the mechanics who know nothing but to say ye wala karab hei.. naya wala dailo.. sorry about my bad hindi

Re: problems with my cbr250r

Well mechanics are well mechanics. How is the ZMR treating you?

Manan.

Re: problems with my cbr250r

The ride is just perfect for the Indian road conditions.. not too powerful and under powered as well.. I am more of a tourer.. so I am pretty happy with the performance.. Can't compare with the CBR250 but in future I will think about the CBR400 or the Ninja 300

Re: problems with my cbr250r

48 is awesome to be true but yeah once I got 44 max...

However honda quotes 49.5 kmpl max at 60 kmph..

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Re: problems with my cbr250r

Thanks Buddy . Can u plz give the values of valve clearance ??

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OH MY G......... so u have not exceeded 60kmph in all gears to get that mileage ??

Re: problems with my cbr250r


That was just a test run to juice out. . Normal now at 34-36 kmpl


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Re: problems with my cbr250r

[MENTION=21789]The[/MENTION] ironhorse. Excellent observation there. I too had been foxed by this insane FE once.

IMHO, the most comfortable, long distance speed for bike and rider on the CBR is actually about 80 to 84 kmph. There is absolutely no strain on the engine - neither lugging nor over-revving. The aural harmonics seem to coalesce at this range to a steady confidence-inducing thrum. A little higher to 90 is also ok. The wind factor is tolerable.

For me, one vital significance was the huge reduction in overall concentration levels from those needed at 120 or so to those needed at 80 to 90. At 120, I am constantly on my toes, scanning, scanning, predicating the insanity gradients for other occupants of the highway. Really exhausting after about one hour. But at 90, time does not seem so compressed and I am mighty comfy with the suicidal cyclists, autocratic autos, crazy cars and coked-up truckers.

I ride by the published torque figures and try to keep the RsPM at a max of 80 to 90% of the figure. I have marked, in red, a capital "T" in bold for the given RPM and a capital "P" for the given power on the instrument panel itself so that I never inadvertently strain the engine. Works for me.

Re: problems with my cbr250r


I Did exceed 60kmph... infact i was hovering in 80's bu that's it... few occasional blasts uptil 130ish.. bu most of the times in 75-85.. and it gave 44 kmpl maybe a lil more to be true.
but that's just on highway not in city use.. with the most sane riding combined with the traffic in hyd the max is 35-36..


cannot agree more... 80's is best to enjoy..i can happily cruise and enjoy the scenery and always be in the green ( safe zone) of panic breaking.. less concentration and more enjoyment..
no strain on engine or either eyes and legs.. infact brain too seems to be happy..

doing 120ish all day.. tires the brain too for quick reflex actions.. vibes that tire the body soon and lot of panic unwanted situation.. occasionaly touch 100's and back to 80's..



also on a safety note.. riding all day in 120's gets the brain adjusted to tht speed in sometime and it starts feeling normal however the major problem occurs with people is brain starts mis judging the braking distance as we gradually slow down to 80's brain actually makes you feel that you are on 40's and you tend to believe that the bike will stop in the short distance available ahead.. but practically that dosent happen... and we all know the end result out of it..


so before you head to highway.. find a empty stretch.. always make sure you touch diffrent speeds like 80 , 100 , 120 and then brake to the limit to find the minimum distance needed to stop with your riding habit.. keep a visual idea of it.. you'd never end up in mess..

Re: problems with my cbr250r

Nice. I get FE of about 30 kmpl + variable about 10% kmpl. Calculated for Bangalore conditions. I too feel very comfy at 80kmph and use it. Of course max speed is limited by road/traffic condition and sense of safety.

For shifting, I shift at 6K RPM (at least for lower gears). Now, though I rely on my sit bone meter to know the RPM, I do acknowledge the cockpit just to admire the beauty often .
Initially I was shifting at 4.5KRPM and it was no upgrade from Suzuki Fiero for me. As per dyno, party starts on CBR after 5.5K till 7.5KRPM.
When I ride out after waiting for a minute on idle, causing a frown and comment by wife why I create this noise by shifting bit late. I tell her, this is a different horse.
As I shift to second and fade out from the view, I laugh imagining what it would be when I change the stock to akra?

By the way, saw that after stopping in a signal, even with hot engine, doing a kill and start sequence still makes RPM to do the 2K to 1.5K ritual.
To make the bike ready with 1.5K level sooner, I just rev it a tiny bit in idle and the bike comes down to 1.5K immediately from 2K. So, I am ready as soon as I start the engine after a traffic light stop.

Re: problems with my cbr250r


yes the ride engages auto choke every time you restart however the ECU does not need setting in. YES.. just a feather touch to throttle for a millisecond gets it back to 1.5k.. ready to vroom.. just for fun.. open the front seat and take the filter cover off ( just the rectangular plate) put the seat back in.. ride for a few days....... enjoy the sonic boom between 4k-7k... and that extra bit of torque...

with a snug fit lid.. enjoy the mechanical subwoofer.. then imagine what an FFE could do to it..

try it..

Re: problems with my cbr250r

2013 colors are now available according to HMSI website. For those interested please head there click on the CBR250R section and go to the price menu to see the colors listed and price too.