CBR 600F2 1991 - 1994 CBR 600F2

why does my bike run like **** into the wind

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Old 03-21-2007, 03:31 AM
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Default why does my bike run like **** into the wind

ok so i thought i needed my carbs cleaned but now i'm not sure... here is the problem. when i ride into the wind (as dumb as that sounds) it runs like ****. it coughs and sputters almost to the point i have to get off the road. it seems to happen in any gear.. usually when i accelerate. and everytime the wind blows it gets worse... when i ride with the wind at my back it runs like a champ....

before i recognized this problem. i would only have problems in 4th gear or higher, i thought. now i realize it was speed, not gear. i did run a bottle of sea foam through it. i also checked my plugs. they are the right ones and are clean and gapped right. my airbox is good and sealed, and i have a clean K and N filter...

the other thing i noticed was that on the front of my airbox there are two oval holes that the air goes through to get to my air filter.. should i have something that goes forward from that? i have no plastics so i don't know what should have been there...
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Old 03-21-2007, 04:04 AM
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Default RE: why does my bike run like **** into the wind

in those holes. there are 2 pieces of tubing that angle downwards but that shouldnt be a problem not having them.

http://www.ronayers.com/fiche/200_02...mp;parent=5120
 
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Old 03-21-2007, 04:19 AM
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Default RE: why does my bike run like **** into the wind

so what else could my problem be? i'm kinda at a loss....
 
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Old 03-21-2007, 05:06 AM
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Default RE: why does my bike run like **** into the wind

i would say jetting issues??
i dont think i have the boots from my old airbox but i will look and if i have them i will let you know and mail them to you...
 
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Old 03-21-2007, 05:31 AM
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Default RE: why does my bike run like **** into the wind

that would be kickass. i hope its something easy like that. but i can't figure that damn thing out.. i just wanna be able to trust it to make the trip to mexico... or even phx
 
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Old 03-21-2007, 02:06 PM
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Default RE: why does my bike run like **** into the wind

would those jets even work for me? i'm in flagstaff AZ. the altitute is about 7000 ft... i'm not really clear on how they work or anything but i'm doing the research.
 
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Old 03-21-2007, 03:10 PM
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Default RE: why does my bike run like **** into the wind

this might sound out of blue but my bike was doing the same thing and my fuel line was a little bit at an angle so i slightly turned the valve in the tank to route the hose straighter now she runs like a champ
 
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Old 03-21-2007, 04:56 PM
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Default RE: why does my bike run like **** into the wind

It sounds like a air intake problem. Too much air coming in most likely. At least that is what is sounds like from the data u gave.
 
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Old 03-21-2007, 05:34 PM
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Default RE: why does my bike run like **** into the wind

Pull the plugs and if they smell like fuel, have them serviced and HAVE THEM JETTED!!!! Stage 1 Jet works wonders.
 
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Old 03-21-2007, 05:53 PM
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Default RE: why does my bike run like **** into the wind

yes it does seem like it is getting to much air.... as for my fuel line needing turned, it could be, i have pulled the tank twice..

also on the rejetting, i'm at 7000 ft. and my local shop said if they rejett it, it would run like crap below 5000. any idea?

my plugs are beautiful. the correct gap and everything. it almost looks like they are running to hot. as in not enough fuel for the amount of air. which puts me back to my intake again.
 


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