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Honda CBR 250R

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  • #21541
    Re: Honda CBR 250R

    Guys. Every time I start my bike or if I have to wait at any traffic, the idle rpm on my bike is 1500. Is it normal?

    Comment

    • #21542
      Re: Honda CBR 250R

      Originally posted by Ave2592 View Post
      Guys. Every time I start my bike or if I have to wait at any traffic, the idle rpm on my bike is 1500. Is it normal?
      That is the normal idling on the bike, nothing to be worried about.

      Comment

      • #21543
        Re: Honda CBR 250R

        Originally posted by B7ACKTHORN View Post
        What's the difference. Semi synthetics are a blend of natural and man made molecules, and fully synthetic is fully man made molecules. Though SS and FS have their advantage and Motul falls in the upper category of FS oils. Kindly go back a few pages, I've reiterated on my views about 300V. You cannot go wrong with the Shell and the 7100.

        Cheers!
        VJ


        .
        I'm on 300v , bike is smooth as normal, even a friend took it on a slow lap on the track ,he said it was smooth, the only difference now here is I'll be checking my oil at 5000-6000kms the recommended service interval and changing it back to 10w40 motul, the reason I put on 300v oil was before a trip of 1200kms up n down, I guess honda throttle oil gives the best smoothness but my oil like blackens by 2000-2500kms due to my usage bike is usually at 5000-7000 rpm range , in the highways I stretch it up to 8000 and above between speeds of 110-140 (After 130 , pushing for too long will strain the engine. ) , Also guys I have a doubt while touring I know it's like difficult to specifically find fuel pumps with speed or higher grade of fuels, like to know anyone uses any fuel additives substitutes and your experiences of it.

        Comment

        • #21544
          Re: Honda CBR 250R

          Originally posted by leech View Post
          Changed the spark plug at 39.5k kms. Not much difference to engine response at high rpm, but low rpm pickup has improved from the flat spot I had since the past 1000 kms.
          What are the signs of brown spark plug?
          Fuel injected bikes have plugs that are far better in shape compared to their car counterparts because they meter fuel precisely, 98% of the times, so the plug has less fouling and excessively rich mixtures or the other side going lean characteristics. Do not adjust the gap on these plugs, these are precisely gapped plugs, the sharp tip can chip easily and render the plug useless.

          Originally posted by Ave2592 View Post
          Guys. Every time I start my bike or if I have to wait at any traffic, the idle rpm on my bike is 1500. Is it normal?
          CBR's normal operating RPM is 1400 +-100 which is 1500 which is perfectly the right idle RPM.

          Cheers!
          VJ
          Once upon a time, a guy asked a girl 'Will you marry me?'
          The girl said, 'NO!'


          And the guy lived happily ever after and rode motorcycles and watched sport on a big screen TV, went fishing and surfing, and played golf a lot, and drank beer and scotch and had tons of money in the bank and left the toilet seat up and farted whenever he wanted.


          THE END

          Comment

          • #21545
            Re: Honda CBR 250R

            Originally posted by Deathwing View Post
            That is the normal idling on the bike, nothing to be worried about.

            Originally posted by B7ACKTHORN View Post

            CBR's normal operating RPM is 1400 +-100 which is 1500 which is perfectly the right idle RPM.

            Cheers!
            VJ
            Thank you both for clarifying.
            Cheers!

            Comment

            • #21546
              Re: Honda CBR 250R

              Originally posted by B7ACKTHORN View Post
              Fuel injected bikes have plugs that are far better in shape compared to their car counterparts because they meter fuel precisely, 98% of the times, so the plug has less fouling and excessively rich mixtures or the other side going lean characteristics. Do not adjust the gap on these plugs, these are precisely gapped plugs, the sharp tip can chip easily and render the plug useless.



              CBR's normal operating RPM is 1400 +-100 which is 1500 which is perfectly the right idle RPM.

              Cheers!
              VJ
              Isn't it strange then that some owners have plugs failing early, and others last more?

              BTW, my chain has actually tightened due to the rain. One part of the chain had no play at all. Any idea of the physics behind this (other than contraction of metal)?

              Comment

              • #21547
                Re: Honda CBR 250R

                Originally posted by leech View Post
                Isn't it strange then that some owners have plugs failing early, and others last more?

                BTW, my chain has actually tightened due to the rain. One part of the chain had no play at all. Any idea of the physics behind this (other than contraction of metal)?
                To your first question, plugs do not go kaput easily. My 3 year old oil fouled plug, made the motor run with just a little clean up using a grit paper. Spark plugs usually last the owner themselves, but their tendency to help jump the gap erodes over time due to oxidation and compression chamber pressure/heat. So, there is not set standards to change a plug, you ride till it seizes to the head or you change them periodically based on ones whim. The later is more a better choice than the former.

                To your second question, I am totally in the unknown how to answer the question.

                Cheers!
                VJ
                Once upon a time, a guy asked a girl 'Will you marry me?'
                The girl said, 'NO!'


                And the guy lived happily ever after and rode motorcycles and watched sport on a big screen TV, went fishing and surfing, and played golf a lot, and drank beer and scotch and had tons of money in the bank and left the toilet seat up and farted whenever he wanted.


                THE END

                Comment

                • #21548
                  Re: Honda CBR 250R

                  Originally posted by Deathwing View Post
                  like to know anyone uses any fuel additives substitutes and your experiences of it.
                  stick to regular fuel, and use an additive like iftex system g or Adon p (the former is sometimes available at bharat petroleum bunks in major cities and the later at IOC bunks). I've used both for a very long period on my d200 and satisfied with it. A few other friends also use it and hasn't caused any problems whatsoever. [MENTION=51754]theironhorse99[/MENTION] uses it on his cbr and is satisfied user.. we stick to normal fuel + additives.. i don't think these 200~250's tuned for our fuel quality need anything more (infact i am more skeptical about using the xtrapremium/speed that are supposed to have the additives premixed.. i don't trust the pump chaps, so i prefer to add the additive myself)

                  Comment

                  • #21549
                    Re: Honda CBR 250R

                    Originally posted by leech View Post
                    Isn't it strange then that some owners have plugs failing early, and others last more?

                    BTW, my chain has actually tightened due to the rain. One part of the chain had no play at all. Any idea of the physics behind this (other than contraction of metal)?
                    Among the Spark Plugs, with a good engine with no oil leak into chamber, For a normal Nickel based Copper core plug life is about 10 K Kms, for a plug with multi ground electrode it is 15~20 K Kms, for a Platinum plug with normal metal ground electrode it is 15K Kms, for a double platinum it is 30 K and for a Iridium plug it is 45~60K Kms...all this assuming good petrol,correct AFR, and no oil leakage into combustion chamber.....

                    Regarding chain, check for Lubrication..clean it once and lube it even if you had done it recently, to rule out lube issue.
                    Good Luck
                    When Was The Last Time,You Did Something For The First Time.

                    Comment

                    • #21550
                      Re: Honda CBR 250R

                      Originally posted by psr View Post
                      Regarding chain, check for Lubrication..clean it once and lube it even if you had done it recently, to rule out lube issue.
                      Good Luck
                      Sir, is it necessary to clean the chain every time before lubing it? I know that our roads are pretty dusty, but what's the standard "dirtiness" required for cleaning the chain? I lube my chain every 300-500km based on use. If I'm riding long distances/hours/speeds I do it every 300km. If it's regular city use/short rides/sedate riding I take it upto 500-700km. I've been told 300km is too frequent, yet the benefits of the scottoiler systems, which constantly lube the chain, is apparent.

                      I also have a question regarding the Honda Throttle oil. I'm currently using the same and I've noticed that whenever the weather is hot or I've been pushing the bike(like on the last speed run, speeds between 110-140kmph), the engine seems to get harsher and vibey. After cooling down the bike goes back to being smooth. The oil is 10w-30 grade AFAIK, is that the reason?
                      Don't matter what it is: Touring; Racing; Commuting. All I know is, I belong on the saddle.

                      Rides : Honda CB Twister(Feb 2011 - Present) | TVS Apache RTR 180 ABS(Sept 2012 - May 2016) | Honda CBR250R C-ABS Repsol(March 2017 - Present)

                      Break-in tension? Read this.

                      Love camping and riding? Google - On Rustic Routes.

                      Comment

                      • #21551
                        Re: Honda CBR 250R

                        Odo reads 5378 in 3 months. Time to give for 2nd service.
                        OT: Have bought Rynox tornado pro jacket from Orion motors Bangalore today. Any suggestion for good helmet which is good for touring and little bit commuting. If there is option to accommodate a spectacles in helmet, that is an added advantage.

                        Comment

                        • #21552
                          Re: Honda CBR 250R

                          I also have a question regarding the Honda Throttle oil. I'm currently using the same and I've noticed that whenever the weather is hot or I've been pushing the bike(like on the last speed run, speeds between 110-140kmph), the engine seems to get harsher and vibey. After cooling down the bike goes back to being smooth. The oil is 10w-30 grade AFAIK, is that the reason?[/QUOTE]



                          I too noticed the engine harshness while riding continuously after 200 kms. May be it will disappear after 2nd oil change. First oil change was done with Honda throttle by SVC.

                          Comment

                          • #21553
                            Re: Honda CBR 250R

                            Can anyone share the labour cost involved for changing chain + sprocket at Honda service center?

                            I have a CBR150R. I got the chain sprocket kit changed today. I was charged Rs 1200 as part cost and Rs 800 (+taxes) as labour charge for fitting it. I think 800 is a bit on the higher side as my local mechanic does it for around Rs 100. I had to visit Honda service center for this because my local mechanic did not have the paddock stand to lift rear wheel.

                            Comment

                            • #21554
                              Re: Honda CBR 250R

                              Originally posted by abhishek.1 View Post
                              Can anyone share the labour cost involved for changing chain + sprocket at Honda service center?

                              I have a CBR150R. I got the chain sprocket kit changed today. I was charged Rs 1200 as part cost and Rs 800 (+taxes) as labour charge for fitting it. I think 800 is a bit on the higher side as my local mechanic does it for around Rs 100. I had to visit Honda service center for this because my local mechanic did not have the paddock stand to lift rear wheel.
                              Paddock stand will be of no use to change the chain-sprocket in CBR. The rear swing arm has to be removed to replace the set. So the support has to be given somewhere apart from swing arm.

                              During my service the technician placed a block under the engine to balance the bike while removing the swing arm and replace the set, but 2 people were required to lift the bike from rear and place the block under the engine.

                              Ram

                              Comment

                              • #21555
                                Re: Honda CBR 250R

                                Originally posted by madhav766 View Post
                                Sir, is it necessary to clean the chain every time before lubing it? I............

                                I also have a question regarding the Honda Throttle oil. I'm currently using the same and I've noticed that whenever the weather is hot or I've been pushing the bike(like on the last speed run, speeds between 110-140kmph), the engine seems to get harsher and vibey. After cooling down the bike goes back to being smooth. The oil is 10w-30 grade AFAIK, is that the reason?
                                Normally in moderate dusty condition cleaning and lubricating chain every 600~800 Kms is good enough. A lot depends on the environment dust and grime condition..So it is subjective. Still doing it at 300 Kms is in my opinion an overkill... So coming back to your earlier query of chain getting tight at particular place during rotation, the cause will be the wear of the rear sprocket...During coder climate the chain metal contracts and makes it obvious...same thing happens due to dirt and grime accumulation in rainy weather rides...
                                Regarding the engine oil, Shell Ultra Synthetic 10W40 seems to be the choice of many CBR250 riders..Many have done over 4~5 K Kms without change and deterioration of ride quality...So you can give it a try and see if it is acceptable to you.
                                Any W30 oil in my opinion is too thin for our hot climate..

                                Good Luck.
                                Last edited by psr; 06-09-2017, 10:05 AM.
                                When Was The Last Time,You Did Something For The First Time.

                                Comment

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