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Honda unicorn sudden pick up/ drop in speed in top 4th and 3rd gear.

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  • #1

    Honda unicorn sudden pick up/ drop in speed in top 4th and 3rd gear.

    Since I bought the bike I have this trouble in engine which cannot be simulated to make the mechanic understand the problem (I bought my bike in 2012 June and have done 5600kms) A strange thing happens in engine and sound (karakh) comes out of the bike engine and the pickup drops/increases for a second or 2 when travelling in top gear and in the 3rdrd and 4thth service I brought my bike to Bangalore and using it here and today I got it serviced (all the values have been cleaned I want to know what is making the engine to produce that kind of sound and pick up/ drop in the speed, that too occasionally. I suspect carburetor or clutch plastes inssue..
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  • #2
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    • #3
      I presume its the gears failing to engage does make that noise sometime - I too have a unicorn as the gear is disengaged there is no power delivered to the wheel
      ASHWIN NARVEKAR

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      • #4
        Originally posted by rameshpm View Post
        Since I bought the bike I have this trouble in engine which cannot be simulated to make the mechanic understand the problem (I bought my bike in 2012 June and have done 5600kms) A strange thing happens in engine and sound (karakh) comes out of the bike engine and the pickup drops/increases for a second or 2 when travelling in top gear and in the 3rd gear, it doesn’t happen often. We cannot say when that will occur, the bike runs good for one or two days and then it occurs once and then it won’t occur for some days together. Sometimes it occurs two to three times in a day. To explain it better I can say that it feels like some wheels are slipping in the engine. I don’t know how to explain this problem. I initially thought that clutch is getting engaged while traveling in top gear and explained the same to service guys and every time they adjust the clutch that is it. Then 3 services got completed and between 3rd and 4th service I didn’t use my bike. After 4th service I brought my bike to Bangalore and using it here and today I got it serviced (all the values have been cleaned I want to know what is making the engine to produce that kind of sound and pick up/ drop in the speed, that too occasionally. I suspect carburetor or clutch plastes inssue..
        Your carburetor/carburettor slide is getting stuck. Needs cleaning most probably. Do you ride/reside in a dusty area? Also, get the clutch plates checked.

        But, its rare that there would a problem with the clutch plates as you've only ridden 5600 kms. Get the carb checked!
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        • #5
          might be you are right Drifter I too feel that. But it happens when i am travelling at a constant speed say 60km and all of a sudden it happens like that. It doesnt happen even in a two stroke bike (in any gear it will be like neutral)
          Last edited by rameshpm; 02-15-2013, 12:37 PM.

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          • #6
            Originally posted by rameshpm View Post
            It doesnt happen even in a two stroke bike
            will you please elaborate?

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