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Honda CBR 250R

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  • #23131
    Re: Honda CBR 250R

    Originally posted by arvstreetracer View Post
    When first time I heard that knock, my odo reading was around 19xxx km. Since then it only increased... There are numerous reason for spark knock and building carbon deposit on piston or within combustion chamber is one of them.
    Will the carbon deposits cause a problem at high rpms?

    Comment

    • #23132
      Re: Honda CBR 250R

      [QUOTE=arvstreetracer;1332998]
      The same noise started coming for me when the odo was around 8k kms. The service centre guy dismissed the noise saying an engine oil change will resolve it.The noise was back when I was on my way back from the svc.
      Was just curious that will the rimula oil treatment as done by many other people on this thread will be of any help? Or opening up the engine is the only way?

      Comment

      • #23133
        Re: Honda CBR 250R

        [QUOTE=Satyajit Samantray;1333029]
        Originally posted by arvstreetracer View Post
        The same noise started coming for me when the odo was around 8k kms. The service centre guy dismissed the noise saying an engine oil change will resolve it.The noise was back when I was on my way back from the svc.
        Was just curious that will the rimula oil treatment as done by many other people on this thread will be of any help? Or opening up the engine is the only way?
        Start using System G. This might help. Another best way to remove all this muck/crust/carbon is water. Once the motor is on optimum temperature, squirt water in mist form for a minute through air intake (remove air filter). Keep your rpm at least 2500 or greater, but not less than that. Water will become steam in combustion chamber and will help removing those carbons. I have done this in older machines. Don't pour water directly. You can use a bottle spray.

        I am already on Rimula for last 1800km. It's good oil and has better cleaning properties, but it won't help reducing spark knocking.
        Last edited by arvstreetracer; 03-01-2018, 11:51 PM.
        -----
        -----
        ARVIND K. YADAV

        Comment

        • #23134
          Re: Honda CBR 250R

          Originally posted by leech View Post
          Will the carbon deposits cause a problem at high rpms?
          Yes, pinging/spark knock is not good for motor. The uneven detonation has detrimental effect on piston, rings, sometimes conrod and main bearing too if severe.
          -----
          -----
          ARVIND K. YADAV

          Comment

          • #23135
            Re: Honda CBR 250R

            Originally posted by arvstreetracer View Post
            Yes, pinging/spark knock is not good for motor. The uneven detonation has detrimental effect on piston, rings, sometimes conrod and main bearing too if severe.
            No, I meant riding at rpm avoiding the pinking, or knocking. Is cleaning of the carbon deposits absolutely necessary?

            Comment

            • #23136
              Re: Honda CBR 250R

              [QUOTE=arvstreetracer;1333034]
              Originally posted by Satyajit Samantray View Post
              Start using System G. This might help. Another best way to remove all this muck/crust/carbon is water. Once the motor is on optimum temperature, squirt water in mist form for a minute through air intake (remove air filter). Keep your rpm at least 2500 or greater, but not less than that. Water will become steam in combustion chamber and will help removing those carbons. I have done this in older machines. Don't pour water directly. You can use a bottle spray.

              I am already on Rimula for last 1800km. It's good oil and has better cleaning properties, but it won't help reducing spark knocking.
              Thanks for the Info.

              Iftex Clean System G for all Petrol Cars (200 ml) https://www.amazon.in/dp/B01FHRZZ3M/..._sPdMAbBZC4ETQ

              Is this the system G additive that you are referring to?
              Also any idea on where can I source it in Bangalore since its unavailable on Amazon.
              Also I wanted to know , how much time did it take for you at the svc to open up the engine and remove the carbon deposits and get the complete job done?
              Regarding rimula is it the rimula T4 15W40 diesel engine oil??

              Comment

              • #23137
                Re: Honda CBR 250R

                Please suggest quality H4 led head lights for CBR. How about NIGHTEYE COB LED available in Banggood.com?? I did search a bit and there were good reviews about those LEDs. Please suggest the ones that can fit in CBR without any modifications.

                Comment

                • #23138
                  Re: Honda CBR 250R

                  [QUOTE=Satyajit Samantray;1333039]
                  Originally posted by arvstreetracer View Post
                  Thanks for the Info.

                  Iftex Clean System G for all Petrol Cars (200 ml) https://www.amazon.in/dp/B01FHRZZ3M/..._sPdMAbBZC4ETQ

                  Is this the system G additive that you are referring to?
                  Also any idea on where can I source it in Bangalore since its unavailable on Amazon.
                  Also I wanted to know , how much time did it take for you at the svc to open up the engine and remove the carbon deposits and get the complete job done?
                  Regarding rimula is it the rimula T4 15W40 diesel engine oil??
                  You can get Iftex System G at BP petrol pumps or car spare shops. Get petrol one as shown in Amazon link shared by you.

                  Use it regularly as written on bottle. 1ml/liter.

                  In my case, head gasket went kaput and I was left with no other option that replacing it. While doing so, I cleaned the piston deposit free. It's entire day job as you need to remove the motor from chassis. I wouldn't recommend to do this just to remove carbon deposits.

                  I am using Rimula R4 15w40 HDEO, got a 5L can from Amazon only.

                  Last edited by arvstreetracer; 03-02-2018, 01:49 AM.
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                  -----
                  ARVIND K. YADAV

                  Comment

                  • #23139
                    Re: Honda CBR 250R

                    Originally posted by leech View Post
                    No, I meant riding at rpm avoiding the pinking, or knocking. Is cleaning of the carbon deposits absolutely necessary?
                    Ride at high rpm - no issue. Just try to avoid knock.
                    -----
                    -----
                    ARVIND K. YADAV

                    Comment

                    • #23140
                      Re: Honda CBR 250R

                      [QUOTE=arvstreetracer;1333046]
                      Originally posted by Satyajit Samantray View Post
                      You can get Iftex System G at BP petrol pumps or car spare shops. Get petrol one as shown in Amazon link shared by you.

                      Use it regularly as written on bottle. 1ml/liter.

                      In my case, head gasket went kaput and I was left with no other option that replacing it. While doing so, I cleaned the piston deposit free. It's entire day job as you need to remove the motor from chassis. I wouldn't recommend to do this just to remove carbon deposits.

                      I am using Rimula R4 15w40 HDEO, got a 5L can from Amazon only.

                      Is it safe a diesel engine oil for petrol engine.and oil grade is different from recommend.
                      not a hard racer, but love to drive.
                      fully DIY type Guy

                      Comment

                      • #23141
                        Re: Honda CBR 250R

                        Hello!

                        Can anyone provide the model no. for SKF tapered bearings which are used for the steering in the CBR. Please do shed some light on how does it perform as compared to the oem ones provided by Honda and the cost of the SKF. My bike has done almost 30k kms now and I guess its time to change those bearings as the handle alignment goes out after few hundred kms of re-adjusting/re-tightening it.

                        Thank you.

                        Comment

                        • #23142
                          Re: Honda CBR 250R

                          [QUOTE=vjxm;1333051]
                          Originally posted by arvstreetracer View Post
                          Is it safe a diesel engine oil for petrol engine.and oil grade is different from recommend.
                          Yes, it is safe, but not all HDEO. Recommended grade is 10w30 - 10w40 and Rimula R4 is 15w40. 15w40 won't do any harm.
                          -----
                          -----
                          ARVIND K. YADAV

                          Comment

                          • #23143
                            Re: Honda CBR 250R

                            [QUOTE=arvstreetracer;1333058]
                            Originally posted by vjxm View Post
                            Yes, it is safe, but not all HDEO. Recommended grade is 10w30 - 10w40 and Rimula R4 is 15w40. 15w40 won't do any harm.
                            Dude, Diesel engine oil is hard and contains heavy detergents to better clean diesel engine, which might not be good for bikes.
                            Diesel cars generate a lot of soot, and diesel oils are designed to keep the soot not to form lumps in engine oil, hence heavy detergents. I dont think thats good exposing your bike internals to such heavy detergent oil.

                            Comment

                            • #23144
                              Re: Honda CBR 250R

                              OT
                              Bangalore guys can you help :
                              I am riding to Coorg wanted to know what else can I see around for 2 more days, secondly what local food is special and hotel stay with road condition and direction. Thank you in advance, this is 3rd post but no help in G2G or Touring section.

                              Comment

                              • #23145
                                Re: Honda CBR 250R

                                Originally posted by pushu097 View Post
                                Hello!

                                Can anyone provide the model no. for SKF tapered bearings which are used for the steering in the CBR. Please do shed some light on how does it perform as compared to the oem ones provided by Honda and the cost of the SKF. My bike has done almost 30k kms now and I guess its time to change those bearings as the handle alignment goes out after few hundred kms of re-adjusting/re-tightening it.

                                Thank you.
                                The coneset needs to be installed properly.. i.e. the races have to sit flush and bearing balls installed with sufficient grease and tightened properly. Some mechanics don't pay much attention and sometimes the race isn't installed properly causing frequent issues.

                                Here is a useful link to skf aftermarket parts for two wheelers. Check out if they have anything for the cbr (some bearings might be the same across different bikes, so am not sure if another motorcycles coneset is compatible with the cbr i.e. if cbr specific part isnt available)

                                Parked Domain name on Hostinger DNS system
                                http://www.vsmskfindia.com/PartsInfo

                                Comment

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