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Thread: Honda CBR 150 R

  1. #3401
    The Time Traveller neevarp16's Avatar
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    Default Re: Honda CBR 150 R

    Quote Originally Posted by bprashant View Post
    Hi guys,
    A little OT question , but did not know where to post it so posting it here.
    I have been riding R15 since last 3.5 yrs and as soon as CBR 150 R was launched, was exited and instead of celebrating people started verbal battles and started mentioning pros and cons of each bike.


    one of which was an closed loop FI in CBR 150 R, as far as I know an closed loop uses the measurement of exhaust gases(using o2 sensor/Lambda sensor) for precise fueling. but there's a catch, a closed loop is used only in the initial RPM's i.e. below 60% of max RPM(according to BikeBoy.org - Fuel Injection – Open Loop and Closed Loop) since CBR has 11.5 k as cutoff, the closed loop will work until somewhere around 5-5.5 k, and post this it works as a regular open loop(found in R15)


    Now here's my question, CBR being a short stroke has to revved hard to extract power (suggested by owners themselves, the shifting of gears has to be done post 5-5.5 k) so why is the CBR having a closed loop instead of open loop system when most of the time it will work post the required RPM of Closed Loop.


    right now trying to learn about FI's.

    P.S- I am not trying to start any vehicle battles here.


    CHEERS

    That is a sensible question.
    Am not any technical guy., and I thought someone with more knowledge would be apt to answer this.

    Well., none did.. so, let's discuss.!

    I read that link of yours and it has explained a lot of details.
    What I grabbed from that site is, there are a lot of factors or variables that are to be tuned in the functioning of the closed loop FI.
    In that case, its not just theoretically definable , not at least to 100%.
    Who knows how Honda has tuned it.

    Okay, all said in defense :P..., that revving hard thing is true.
    So, no use above 40% RPM.

    But, think about cruising.
    I think it comes into play there.
    Cruising at 6-7k RPM all you need is just some few throttle degrees to be twisted (it is also in the equation, right?)
    And, I am sure, it does some magic!

    I've never believed when guys said they are getting 42kmpl on highways.
    All I've quoted is a max of 35kmpl.
    All this were till last month. When returning from Chennai-Blore on a midnight run.,
    all I did was to hold the RPM at 6-7k RPM... & believe me this time,

    I got ~40-44kmpl, for sure!

    So, I think there is something coming into play, practically at some or other perfect conditions!
    Not sure when or what they are to theoretically explain.
    The limiter kicks in @11,500 rpm just within a second after the first shift..And, that's where the fun begins !! ;)

    My 1 Day rides - T'Log collection


  2. #3402
    Rookie bprashant's Avatar
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    Default Re: Honda CBR 150 R

    Quote Originally Posted by neevarp16 View Post
    That is a sensible question.
    Am not any technical guy., and I thought someone with more knowledge would be apt to answer this.

    Well., none did.. so, let's discuss.!

    I read that link of yours and it has explained a lot of details.
    What I grabbed from that site is, there are a lot of factors or variables that are to be tuned in the functioning of the closed loop FI.
    In that case, its not just theoretically definable , not at least to 100%.
    Who knows how Honda has tuned it.

    Okay, all said in defense :P..., that revving hard thing is true.
    So, no use above 40% RPM.

    But, think about cruising.
    I think it comes into play there.
    Cruising at 6-7k RPM all you need is just some few throttle degrees to be twisted (it is also in the equation, right?)
    And, I am sure, it does some magic!


    I've never believed when guys said they are getting 42kmpl on highways.
    All I've quoted is a max of 35kmpl.
    All this were till last month. When returning from Chennai-Blore on a midnight run.,
    all I did was to hold the RPM at 6-7k RPM... & believe me this time,

    I got ~40-44kmpl, for sure!

    So, I think there is something coming into play, practically at some or other perfect conditions!
    Not sure when or what they are to theoretically explain.

    Thanks for your reply mate,
    May be the thing you mentioned (here in bold) is one of the answers to my question, I revisited the website (BikeBoy.org - Fuel Injection Open Loop and Closed Loop) and found this-
    "Because of the time delay needed to get the air/fuel ratio cycling around stoichiometric, an accelerating engine can’t be effectively controlled in this way using Narrow Band sensors.This is why most Closed Loop systems operate only when the throttle opening is constant and the rate of RPM change is very low. ", well this tells the same thing which you mentioned above; may be when cruising and increasing the throttle at a constant rate the closed loop may work even a higher RPM's, leading to lesser emissions and higher performance.

    Well, still these are just guesses and for the most part justify the answer to the question, but it would be good if someone with wholesome of knowledge on this topic would tell what exactly goes in there.
    So how's your baby, is it getting along with you.

  3. #3403
    The Time Traveller neevarp16's Avatar
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    Default Re: Honda CBR 150 R

    Quote Originally Posted by bprashant View Post
    Thanks for your reply mate,
    So how's your baby, is it getting along with you.
    No problems.., Always a pleasure to discuss..!

    My Baby? Nopes... My babe! and we both are enjoying the days!
    Thanks for asking!
    The limiter kicks in @11,500 rpm just within a second after the first shift..And, that's where the fun begins !! ;)

    My 1 Day rides - T'Log collection


  4. #3404
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    Default Re: Honda CBR 150 R

    well..hello guys I am a Proud owner of Cbr 150R(orange) since October 2013. I guess its not too late to thank you guys here who helped me clear my confusion. Its been long and fun with my baby blade with the odometer at 6523km Coochie cooed her during Break in period taking it easy,however with few incidents where i couldn't help but rip her hard.After the Break in,did the servicing where the odometer read 750km. Due to some reason i didn't use honda specified 10w30 f.s mobil,rather used castrol power 1 racing(10w50).Engine was much smoother,soon after,followed by second service at around 3600 km. This time however i used motul 300v(10w40) which performed considerably better than my earlier mobil. Engine was much smoother with slick gear shift. It's not one of the usual bikes.One has to actually learn the way,weld properly with it,in order to extract the power buried within this bike.You have to be very involved with this beauty and then of course it will never let you down. A really marvelous engine,with a rev happy DOHC unit. One can,t help but Red line this machine each time someone rides it! and the fun factor is you won't even realize it till you see the tachometer. It red lines somewhere around 11,700-11,800 RPM with absolute craze after 8000 rpm. however it is somewhere in between 9000-11,700,where the engine goes berserk making all the power and let me tell you it's Addictive! One can't help but fall in love with the beauty with which it red lines . Till now the ownership has been hassle free. The service centre here in kolkata is quite good with really cooperative svc guys . Heating was never an issue even in the meanest traffic jams. till now i have achieved a top speed of 143kmph that too on 5th gear,post which shifting to 6th gears renders the bike relaxed.well it could have gone 2 to 3kms more had the road been a bit more longer . You can hit 135 on any given day and wind condition. mileage depends on how you handle the throttle. go gentle i.e below 7k rpm and it returns a good fuel economy of 40-42kmpl while rip it dead hard and it drops to 32-34kmpl while random thrust and normal riding gives you around 35-36kmpl. I have seen many people complaining about the low end torque,let me assure you guys its ample for city maneuver and pulls effortlessly with slight throttle(don't be so lazy). It's the way the bike is,low end simply amplifies the top end Rush! I have tried to coves most of the aspects..sorry if something has been left out cheers! Enjoy riding!
    sibun, neevarp16, Lenov and 2 others like this.

  5. #3405
    Addicted Dhiman Jyoti Sarmah's Avatar
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    Default Re: Honda CBR 150 R

    Changed Pilot lamps to warm white LEDs. No difference in output brightness though! Will swap with more powerful ones soon!!

    Name:  DSC05190.jpg
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  6. #3406
    The Time Traveller neevarp16's Avatar
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    Default Re: Honda CBR 150 R

    Quote Originally Posted by Pradip19 View Post
    well..hello guys I am a Proud owner of Cbr 150R(orange) since October 2013. I guess its not too late to thank you guys here who helped me clear my confusion. Its been long and fun with my baby blade with the odometer at 6523km
    Wow!! Nostalgic of my initial ownership days!
    Gonna be two years in a couple of days!

    Ever been running only on Honda oil.
    but, lately facing heating issues, above than normal and gear shifting problems too.
    Planning to change to Motul 300V.
    Any suggestions riders?


    And heads up,
    Going out to Blore-Sathy-Udumalaipet-Munnar-Ernakulam-Athirapally-Valpaarai-Blore this month end!
    The limiter kicks in @11,500 rpm just within a second after the first shift..And, that's where the fun begins !! ;)

    My 1 Day rides - T'Log collection


  7. #3407
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    Icon6 Re: Honda CBR 150 R

    well we have three cbr150r in our group one is black in white,the other being green 1 and the last 1 mine both the other except mine ran on honda synthetic oil(10w30). the green cbr was bought along with mine well i rode that however i found using the honda oil makes the bike too smooth to the point that the soft creamy exhaust note gets boring :P however the motul 300v does provide a racy note along with maintaining the same level of smoothness initially one may not feel the difference but as the kms rise one will see notable difference with smoother gear shifts and the throttle response is a bit more(personal opinion )..tried and tested with many drags rode them back to back and felt the difference instantly! and yeah one more thing to add to my last post..1st gear tops at around 52kmph the second at 78 while the third at around 102 with the 4th at around 123 and the fifth gear takes u upto 143. 6th gear as i said is mainly for rendering the bike relaxed at any speed(above 100 at least) without loss of power however!

    the black and white one which ran on honda f.s mobil is about 2 years old with the odometer yet at around 7000 lol! the bikes is butter smooth but yes i faced a bit of problem while shifting the first gear and while bringing it down to neutral! :/ strange! well he had an accident that might have caused the problem..just a guess.
    Last edited by Pradip19; 05-05-2014 at 11:32 AM.

  8. #3408
    Addicted jomindolges's Avatar
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    Default Need Help : Clutch is not fully disengaging

    I need some help here to find out whats the problem with my clutch. Seems like it is not fully disengaging, and when I give throttle, rpm is increasing immediatley but the bike is not moving with respect to the throttle. I doubt that clutch is having some problem. Is it possible to fix this under warranty, if anything wrong in the clutch system.

    Next week I am going to shift to nagpur. If any CBR owners here from nagpur, please suggest me a good ASC in nagpur.
    LivE 2 RiDE ....


    [SIGPIC][/SIGPIC]


    Honda CBR 150R (2012)
    Bajaj Pulsar (2007 - 12)
    Honda Shine (2006 - 07)

    Page for CBR 150R Owners
    https://www.facebook.com/pages/Honda...00758560033559



  9. #3409
    Rookie apirateofthecaribbean's Avatar
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    Default Re: Need Help : Clutch is not fully disengaging

    Hi guys I'm new here and going to buy a new bike next month, looking forward to get this baby so is there anybody from Delhi who knows a good Honda dealer?
    I recently visited Dhingra Honda West Delhi and found the executives had no knowledge about the bike. They said we will give you a call to give you all the information about the bike tomorrow, well its 3days already I wonder what kind of service they deliver :/

    Also I just found this online
    Name:  500x348xHond-CBR150R-front.jpg
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    Name:  500x358xHonda-CBR150R-side.jpg
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    http://www.carblogindia.com/new-hond...hotos-details/
    cant comment on its authenticity but should i get it or wait
    Last edited by apirateofthecaribbean; 05-06-2014 at 12:09 AM.

  10. #3410
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    Default Re: Need Help : Clutch is not fully disengaging

    guys i am heading for my 3rd servicing.Any advice or tip so that the whole process is done properly? moreover i am interested in changing my stock air filter! Has someone tried that out?

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