Can't go past 110mph

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george_258258
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Can't go past 110mph

Post by george_258258 » Wed Apr 24, 2013 10:31 pm

My bike is a uk model, I have just recently removed the carb restrictors but I am finding the bike struggling at top end. It will get to 100 quick, but struggles to get to 110 and then wont go much above this; most i have seen is 115. It has just been fully serviced but i am unsure of what the problem could be, any suggestions?

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CaNsA
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Re: Can't go past 110mph

Post by CaNsA » Thu Apr 25, 2013 12:08 am

Air/fuel mix + balance the carbs.

Get it on a dyno mate.
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RedexRobB
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Re: Can't go past 110mph

Post by RedexRobB » Thu Apr 25, 2013 1:04 pm

What cdi have you got? If it has a uk cdi it will be blue and stamped with an M.

george_258258
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Re: Can't go past 110mph

Post by george_258258 » Mon May 06, 2013 7:35 pm

I have had the carbs balanced since and it is running smoother I but still have the same problem with it lacking power. The cdi is has a blue 1332 M sticker. Im assuming this means it isn't restricted then.

I did notice that the gasket between the carb plate and the airbox is missing and so unfiltered air is getting in through there, but does anyone know what effects this would have?

cheers

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CaNsA
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Re: Can't go past 110mph

Post by CaNsA » Mon May 06, 2013 8:41 pm

That will be throwing the air:fuel mix off and causing the bike to run lean.
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george_258258
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Joined: Wed Apr 03, 2013 9:36 pm
My Bike: zxr400 L5

Re: Can't go past 110mph

Post by george_258258 » Mon May 06, 2013 9:19 pm

I have another one on order; is there anything else that you can think that would be causing my problem. Someone said if the jets had been changed with smaller ones this could have an effect

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Re: Can't go past 110mph

Post by banner001 » Tue May 07, 2013 12:20 pm

having too small main jets will restrict fuel flow at high rpm/wide open throttle applications.

remove the carbs and the fuel bowl on them and tell me what numbers are stamped on the main brass jets, if you can also remind me what air filter, downpipes and exhaust you have, that would be a bonus.
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CaNsA
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Re: Can't go past 110mph

Post by CaNsA » Tue May 07, 2013 12:30 pm

Do you want the moon on a stick aswell banner.....


:pmsl
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Re: Can't go past 110mph

Post by banner001 » Tue May 07, 2013 2:19 pm

im still waiting for my delivery of a naked chocolate-dipped taylor swift... :smt009
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