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Thread: Apache rtr 200 engine performance problem

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    Default Apache rtr 200 engine performance problem

    Hi all, this is my first post here so forgive me for my etiquettes and rules broken if any.. i will learn... now coming to the problem that I am facing ... my bike apache rtr 200 which I got three months back has been acting strange lately much to my displeasure... after second service which i got done at 1900 kms I decided to give the bike a taste of speed and drove it to speeds of 120 a couple of times...now after some time the bike is refusing to climb even 105 at 7500 rpm. Earlier I achieved 120 at around the same rpm. Every timr I try to open the throttle the bike seems to b too tired to climb up the speedometer.. I got the bike checked at the service centre and they ran the speeed test on their machine where the bike went to 150 but beyond 8000 rpm. Everything is fine according to them but I know the bike is not generating the same acceleration at those rpms. And moreover We rarely get a stretch long enough to take the bike beyond 7500 rpm cause as we all know apache’s top end is not that strong. What possibly could be the issue? I already lubricated the chain. I am looking for some expert advice.

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    Thumbs up Re: Apache rtr 200 engine performance problem

    Topic Approved.

    The dyno run is of not much significance, because the machine is without load. I've seen my Pulsar doing better speeds on dyno, and not so much in real life when its tuning was not optimal.

    Apache RTR 200 4v does 120 kmph (meter indicated) at about 8300 rpm (unless TVS changed it in later editions).

    Firstly, be sure of few things:- Are you sure that speedo-to-rpm connection is affected?
    I'm asking this because normally the speed:rpm is not affected, not even by bad tuning & service of the motorcycle.
    Its only affected by a few limited occurances, which are either clutch slip or sprockets size/spec change or rear tyre change. That's it.
    So, that's very unlikely.


    Most probably, your speed:rpm ratio is not changed (please check again), but you're finding it difficult to pick up speed due to bad tuning...

    The most common reasons could be, bad carburetor tuning or physical damage to exhaust or excessive oil or uncleaned/ damaged air filter.

    Also tell me, did you notice a change in bike's sound after the service? Then it could be either damaged exhaust or a problem with the air filter.

    In case of carburetor, try getting an "O2 test" done on your bike's exhaust smoke. There is a machine for this purpose that Service centers have usually.
    That helps determine if the bike's Air fuel ratio is not rich or lean, it should be balanced. Let me know the reports' result here if possible.

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    Default Re: Apache rtr 200 engine performance problem

    The engine sound is definitely not the same that it was earlier... also it’s heating up much quickly as compared to before... i even asked about the heating part but the service guy responded by saying the most absurd logic “sir this is a 200 cc bike it will heat up”..... i will take the bike to a different service center and get the test done...will post the results.... thanksss a lot for the guidance....

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    Default Re: Apache rtr 200 engine performance problem

    Quote Originally Posted by saurabhtyagi View Post
    The engine sound is definitely not the same that it was earlier... also it’s heating up much quickly as compared to before... i even asked about the heating part but the service guy responded by saying the most absurd logic “sir this is a 200 cc bike it will heat up”..... i will take the bike to a different service center and get the test done...will post the results.... thanksss a lot for the guidance....
    This may be quite late for a reply, but anyway.

    I hope the AFR aka carb tuning has been screwed up. Most probably, you are running on the lean side, which may damage the engine components. A proper carb tuning must solve your issue.

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    Default Re: Apache rtr 200 engine performance problem

    Quote Originally Posted by saurabhtyagi View Post
    The engine sound is definitely not the same that it was earlier... also it’s heating up much quickly as compared to before... i even asked about the heating part but the service guy responded by saying the most absurd logic “sir this is a 200 cc bike it will heat up”..... i will take the bike to a different service center and get the test done...will post the results.... thanksss a lot for the guidance....
    1.When you say that the engine is running hotter than normal, that definitely is bad tuning(on the leaner side to be exact), also check the Spark plugs to be sure.
    when the mixture is lean, the engine is tuned to get less fuel and more air which is perfect for high temperature combustion in the engine. High temperature combustion is not what is needed for the optimum performance of the Engine.

    2.The second reason maybe engine oil, maybe a different viscosity rating. The Apache RTR 200 has a recommended oil rated 10W30, in case if a 5W40 Oil is put in the engine, it will be much thicker obstructing the movement of the moving parts and it will be poor in dissipating heat.

    Check for these two possibilities.

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