Honda CBR600 fuelling issues?

[Bike_craze1]

Jusst a quick question, riding the CBR below 4k it runs really lumpy and sounds like its bogging? its all standard apart from a Jardine RT-01 back-box, any ideas?
would you really need a Power Commander for just an exhaust? it runs fine above 5k.
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Yamaha R125 - Cagiva Mito 125 - Honda CBR 600
CBT passed: 22/07/08 Bike Theory passed: 28/03/09
Bike Test passed: 15/04/09

[_Iain_]

If its carbed suspect a bit of shite in the pilot jet.

Main on my GS takes over at about 4k, and theres an embarrising story about how i know that.
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Please be aware that the above post may be full of complete nonsense.
Riding: '07 KTM Duke II, Baotian BT49QT-20 Driving: '88 Volvo 340

[Bike_craze1]

Nahhh its fuel injection pal taa anyway man
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Yamaha R125 - Cagiva Mito 125 - Honda CBR 600
CBT passed: 22/07/08 Bike Theory passed: 28/03/09
Bike Test passed: 15/04/09

[_Iain_]

Ah well, in that case i'll take a few steps away. EFI is a black art and is not something i enjoy pissing about with.

However - i've not heard of anyone having major issues on any EFI bikes just by fitting a sporty can on it
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Please be aware that the above post may be full of complete nonsense.
Riding: '07 KTM Duke II, Baotian BT49QT-20 Driving: '88 Volvo 340

[Pete.]

You don't say what year? Obvious 1st thing to do is fit the stock exhaust and see if it improves. If you don't have that, check all the vac lines from the throttle bodies to the sensors. It sounds like the MAP/APS sensor signal line is off.
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a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[Bike_craze1]

Its 2007 pal and no I don't have standard zaust.. abit more detail it only bogs around 3-1/2 to 4k revs above 3/4 gear, idles and runs sweet above that, taa pal.
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Yamaha R125 - Cagiva Mito 125 - Honda CBR 600
CBT passed: 22/07/08 Bike Theory passed: 28/03/09
Bike Test passed: 15/04/09

[Acemastr]

I must say, mine doesn't run particularly wonderful at 3k revs, I tend to sit at 3k revs in 6th in town but i wouldn't dream of opening it up at that... nothing happens
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2017 KTM 350 XC-F - 2014 Yamaha R6 - 2005 Yamaha YZ125
2016 Toyota Tacoma Limited

[Bike_craze1]

Yeaa I know Inline 4's shouldn't really be driven idling but surely the fueling is dodgy if it bogs? its not even trying to open it up, its just keeping the throttle in the same position it just bogs and dosen't feel too good. Other than 3/half - 4k revs its fine.
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Yamaha R125 - Cagiva Mito 125 - Honda CBR 600
CBT passed: 22/07/08 Bike Theory passed: 28/03/09
Bike Test passed: 15/04/09

[0l0dom0l0]

I think any IL4 is going to bog in 4th gear at below 4k tbh.
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CBT Passed: 30/08/2009, Theory Passed: 31/08/2010, Mod 1 Passed: 6/9/2010, Mod 2 Passed: 13/09/2010. Restriction ended 13/09/2012.

Bikes: 2007 Derbi GPR 50, 1998 Yamaha Fazer 600 (written off), 2002 Yamaha Fazer 600, 1994 CBR 600F, 2003 Triumph Daytona 600, Kawasaki ZX6R J1.....Current: 2006 Yamaha FZ6, 1998 Suzuki TL1000R and a Honda VFR 400 NC30.