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Engine knocking in hunk

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  • #1

    Engine knocking in hunk

    Guys i own a 2008 herohonda hunk ive done 49000 kms it is very well maintained and serviced at regular intervals.
    Today i noticed a knocking sound coming from the engine can anyone tell me the probable causes and the remedies.
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  • #2
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    • #3
      Originally posted by sidsawant328 View Post
      Guys i own a 2008 herohonda hunk ive done 49000 kms it is very well maintained and serviced at regular intervals.
      Today i noticed a knocking sound coming from the engine can anyone tell me the probable causes and the remedies.
      Hey Sid, when did you last change your engine oil?
      Also, what grade of engine oil have you been using?
      Do you mainly ride in the city?

      If you ride mainly in the city and if you've been using mineral oil then you can expect it to go bad within 1500 kms of riding.
      Also, you may want to get the head de-carbonised.
      Got a $5 head? Get a $5 helmet.
      Because everyone who passes, isn't a martyr!

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      • #4
        Knocking mainly happens when access carbon is built up in combustion chamber.
        This is the similar post i've made before this may help u....http://www.xbhp.com/talkies/help-me/...tml#post879348
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        • #5
          knocking is also caused due to bad fuel. Empty your tank and fill up from a 'reputed' bunk (or shell just to be sure ) and check again. also make sure the spark plug is cleaned every 2500km and replaced at every 12k km, and same goes for the air filter.

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          • #6
            Ive been using normal fuel
            Also i have recently serviced the bike and changed the oil as well to servo
            I also feel the fuel quality is affecting the bike.
            Can anyone suggest any trusted fuel stations in pune as im new..

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            • #7
              check your carburetor ,if the carburetor is not working properly it may cause knocking...

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              • #8
                Originally posted by sidsawant328 View Post
                Ive been using normal fuel
                Also i have recently serviced the bike and changed the oil as well to servo
                I also feel the fuel quality is affecting the bike.
                Can anyone suggest any trusted fuel stations in pune as im new..
                if you never de-carbonized your, I think excess carbon deposits would be causing this (as your bike has done 49k km).
                Also check the tip of your exhaust for any oily black deposit and check for smoke while riding, to check if your engine is burning oil.

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                • #9
                  Originally posted by SatSon View Post
                  if you never de-carbonized your, I think excess carbon deposits would be causing this (as your bike has done 49k km).
                  Also check the tip of your exhaust for any oily black deposit and check for smoke while riding, to check if your engine is burning oil.
                  Yes I've never done de-carbonizing.
                  Also is this done at the Hero Moto Corp. service centers?

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                  • #10
                    Originally posted by sidsawant328 View Post
                    Yes I've never done de-carbonizing.
                    Also is this done at the Hero Moto Corp. service centers?
                    Yes, this can be done at service center, even local mechanics can do this.
                    What about your exhaust tip? Is there oily deposit? Does your bike produce smoke in high rpms ?

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                    • #11
                      No it doesn't produce any smoke at any levels of revs
                      But there is a blackish deposit on the tip of the silencer.

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                      • #12
                        ^If the said deposits are only dry and not greasy & wet then don't worry. Its normal.
                        http://www.facebook.com/ateesh.kumar

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                        • #13
                          As Honda_CBF said, if the deposit is not greasy and there is no smoke, don't worry.
                          Between, did you get your bike de-carbonized?

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                          • #14
                            Originally posted by SatSon View Post
                            As Honda_CBF said, if the deposit is not greasy and there is no smoke, don't worry.
                            Between, did you get your bike de-carbonized?
                            Not done yet im stuck in Pune for a couple more weeks can only get it done when i head back to Mumbai

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