gsxr750 misfiring

[shereen]

As the title suggests the bike is misfiring At very low revs and when idling. Also exhaust is back firing at low revs.

Any ideas? I think it may be a fueling problem, I am wondering whether the bike was mapped correctly whne the power commander was fitted? Will call the place who mapped it tomorrow.
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"The Internet is the first thing that humanity has built that humanity doesn't understand, the largest experiment in anarchy that we have ever had"

[Nope.]

IIRC (and I might not) if you just unplug the power commander then it resets to the Stock map. Try that, if it then starts running properly then its the map at fault.
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Former: Derbi GP1 50, Sachs XTC 125, Suzuki GSXR 400 GK73A, Kawasaki ZX7R, Suzuki DR250, Yamaha RD350
Current: 2011 Yamaha XT660Z Ténéré, 2003 Yamaha YZR-R1 5PW (In Build), 2009 Kawasaki ZZR1400

[shereen]

Just for future referance, the problem was cylinder 3 coil stick had failed. Needed new coil stick and set of plugs.

Apparently it is a common problem on the GSXR's.
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"The Internet is the first thing that humanity has built that humanity doesn't understand, the largest experiment in anarchy that we have ever had"

[P.addy]