Question about 2005 Aprilia Mojito Custom 125

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Seems to be hold back and making slght crunching noise

My 125cc mojioto seems to be holding back when i take of its also make a grinding sound when im going slowly , I thought it had something to to the the petrol i have only been putting premium unleaded from caltex in ,when i change to bp it seemed to stop for a little and the power of the bike seemed to increase , it is now do the same thing as befor it is only 6 month old ,I was told maybe the carbarator needs to be cleaned ok can any one help me wiht this problem?

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  • 193 Answers

If you are experiencing grinding noises and a power loss, I would look more to the power train and related components. Transmission, wheel bearing, brakes hanging.

With the engine off, I would push the bike slowly to determine if you are able to detect a grinding noise and if there is any resistence when pushing it.
Bill

Posted on Nov 19, 2008

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Please rate this solution. Thanks!

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Now lay the chain on the concrete and 'compress the chain in a straight line. Mark the end of the chain on the concrete. Now hold on to one end of the chain and stretch the chain. Did it stretch more than one inch? Replace it if it did. Look at the chain. is it rusted? Is it limber or do the links resist bending? Replace the chain if rusty and stiff.

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Chances are you will find the problem if you do the above.
I hope you can rate this solution as a 'FixYa".

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