CBR 600F3 1995 - 1998 CBR 600F3 Forum

new exhaust giving power loss

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Old 04-11-2012, 08:21 AM
gaztplymouth's Avatar
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Default new exhaust giving power loss

hi all quick question.

i have changes the exhaust-can on my cbr600f for a fuel oval chrome effect one.

when i first changed it i noticed that it gave me more power in 1/2nd gear and was able to get up to 60 mph in about 7-9s (guessing), but after 3 weeks i have noticed i an red lining at 40mph in first and giving me about 10k-11krpm in 2nd gear and 0-61mpg in about 11-15s (guessing)

im me worried about it getting higher up the rpm scale and not giving me the speed i used to get,

i took the bike in for a full 21kmile survice 2 days before i fitted can so dont know that is up with her, do you recon they did a bad job or i have messed her up with new can or even i need to jet it or change something?

thank you all


 
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Old 04-11-2012, 10:34 AM
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a change in rpm's at a given speed is not possible by changing the exhaust, only by changing the gearing.
 
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Old 04-11-2012, 12:41 PM
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I only changed the can not the system. was told I did not need to re jet for just a can from guarage and websight
 
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Old 04-11-2012, 12:50 PM
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Did you rejet your bike when you installed the new pipe?
 
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Old 04-12-2012, 05:55 AM
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If the can was going to mess it up it would've done so immediately and as said it can't change the speed it redlines at. I'd look elsewhere for a fault.
 
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