R6 Poping

[Andy levitt]

Right i have fitted a akrapovic slip on and a custom exhaust downpipes. I have also fitted a K&N filter and a PCIII. Thing is there isnt a map for my exhaust set up as there custom downpipes off ebay.

These are them

https://cgi.ebay.co.uk/R6-EXHAUST-RACE-HEADERS-2006-2007-2008-2009-06-07-08-09_W0QQitemZ370362116571QQcmdZViewItemQQptZUK_Motorcycle_Parts?hash=item563b4d69db


So im running Map M430 -512 which is "European-, Akrapovic full exhaust, Stock or aftermarket air filter, Dynojet O2 controller installed"

The bike pulls harder and feels fine, but on deaccelration there is poping and and does occanally back fire when shuting off throttle at high rpm. Sounds awsome!

But......... From that describtion will i be running too rich? or too lean? Its a big job to get to the plugs to check. and i havent been running like this long i doubt that will demtermin anything at this moment in time.

Hope you can help thanks!
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Speedfight 50 -> Honda NSR 125 -> Y reg YAMAHA YZF R6 -> 08 YAMAHA YZF R6 -> Honda CBR1000RR
Theory test Done 4/6/07
Practical test Done 21/12/07

[Fisty]

Sounds like its go a leak somewhere in the exhaust system. Sucking air in and burning unburned fuel on overrun.
Check all the joints.
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Quietly and consistently taking the piss.
TL1000R | Hayabusa | ZXR400 | TL1000S | Bandit 400 V
Fatter and faster than Fret

[temeluchus]

do you have an O2 sensor on that pipe? The o2 controller is a seprerate box to the PC3 apparently, so this may cause the mixture to be a little off if missing.
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[Pete.]

Popping on the over-run could be a leak at the headers, or if your bike has clean-air/PAIR/etc as standard, you didn't disable it when you fitted the pipes & Akky.

Even standard bikes pop a bit on the over-run just that the stock silencing means you don't hear it.
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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

[Andy levitt]

ahhh right, yeah i got a little black box what i disconnect the o2 sensor cable from plug the box into it.

I thought the poping and that would mean its running rich with fuel not being burnt and entering the exhaust sytem. But i could be wrong?
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Speedfight 50 -> Honda NSR 125 -> Y reg YAMAHA YZF R6 -> 08 YAMAHA YZF R6 -> Honda CBR1000RR
Theory test Done 4/6/07
Practical test Done 21/12/07

[Wafer_Thin_Ham]

Do a dyno run, then you'll know.

It should only cost between £30 and £40.
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