2014 kx 450

JMac33
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JMac33
Edited Date/Time 1/3/2014 1:46pm
My 14 kawi 450 was backfiring on decell much more then my 12 did. I decided to try the white (agressive) coupler just to see what would happen. Seemed to work a little on the backfiring, but now it sounds like it might be pinging under load. I am running sunoco 93 and it is around 45 degrees out. Any ideas ?
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Skerby
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Mayes County, OK, USA
Skerby 1/1/2014 10:20pm
1/1/2014 10:20pm
The kawis run lean. Remap would solve your problem.
moto314
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Mooresville, NC, USA
moto314 1/2/2014 7:45am
1/2/2014 7:45am
Bikes will be leaner in cold temps, the EFI will adjust to some degree but 45 degrees is most likely causing a lean issue. Just make it a little richer mid and top end and see if still pings.
FGR01
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Fantasy
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FGR01 1/2/2014 9:05am
1/2/2014 9:05am
Isn't the aggressive coupler leaner than than the stock one? Probably made it worse. Try the Mild coupler and see what happens.
mxb2
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Bowie, MD, USA
mxb2 1/2/2014 11:28am
1/2/2014 11:28am
white plug is the aggressive one and its lean, a remap will take care of sll the issues. use good fuel and a remap, or a vortex box.

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JMac33
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JMac33 1/2/2014 6:41pm
1/2/2014 6:41pm
thanks guys. Yes, the aggresive coupler is leaner. I just wanted to see what would happen. It did not make it worse. I guess I will go with the remap.
coastie44
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NorCal, CA, USA
coastie44 1/2/2014 8:45pm
1/2/2014 8:45pm
I run 1 gallon of Sunoco 110 to 4 gallons pump and that cleaned up my decel popping and pinging under load nicely.
JMac33
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12/30/2013
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USA
JMac33 1/3/2014 10:37am
1/3/2014 10:37am
So 44, your bike was doing the same thing in Norcal temps ?
coastie44
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coastie44 1/3/2014 1:46pm
1/3/2014 1:46pm
Yep. I ride 408mx mostly if you are in NorCal.

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