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Honda cbr 125r wont go over 20mph

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  #1  
Old 12-07-2020 | 12:40 PM
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Default Honda cbr 125r wont go over 20mph

Hello I have recently bought a honda cbr 125r 2005 plate and it has just lost a lot of power and torque I could easily push 60-70 on it but now its only pushing 20-25 can any one recommend what to do many thanks
 
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Old 12-08-2020 | 01:12 PM
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Difficult to know where to start diagnosing your issue with the information you’ve given.
Tell us her history, condition of the bike, like when it was last serviced or other jobs done that might of caused your issue. Does she fire up easily and idle ? Does it rev cleanly from idle when she’s warm ? Does it pull away effortlessly from a standstill and is your issue throughout all gears ?
Best of luck mate.
 
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Old 12-08-2020 | 01:19 PM
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The bike is in good condition last service was 3k ago It was blowing the 30A fuse then u took fuel tank airbox and the carb off the rubber mountings but then I located the problem and sorted it ever since that it didn't wanna run as it was, it idles and fires up perfectly fine first press of the button and the bike is just lacking the torque and power it used to have
 
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Old 12-08-2020 | 06:28 PM
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What exactly did you "sort" - you need to be very precise otherwise we're all just guessing.
 
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Old 12-09-2020 | 04:13 AM
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I had the wires which was going to the 10A fuses and I rewrapped them with electrical tape as a quick fix until I can put shrink wrap on them
 
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Old 12-09-2020 | 10:32 AM
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I would go back over the air box and carb connections. If you haven’t reinstalled these perfectly, she’ll run poorly with similar symptoms of your issue.
Best of luck mate.
 
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Old 12-09-2020 | 10:34 AM
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The carb is connected properly as I made sure the rubber boots were on correctly and tightened them up tight and the airbox is on the boot correctly as I fiddled for a few mins to get the boot to sit correctly
 
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Old 12-09-2020 | 02:18 PM
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Is your clutch operating correctly, not slipping?.....admittedly it would have to be shocking to achieve what your describing but you have to narrow things down. Where are those horses going missing ?
Could you describe what happens as you set off and go through the gears ?
 
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Old 12-09-2020 | 02:24 PM
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When im going through the gears they go in nicely and with ease and its just dead whilst riding it
 
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Old 12-09-2020 | 05:04 PM
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Have you restricted the fuel line during reassembly ? If you only have an issue since rebuilding then retrace the steps you took to see if you’ve missed something. Frustrating yes but prove your work. Inspect the carb rubbers for splits whilst your at it.
Best of luck mate
 



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