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I have an '04 636 with a full titanium akra exhaust system (header to pipe w/ carbon pipe). I have a K&N air filter and a power commander. When I ride for a while (about 20 min or so) in higher RPMs, my bike shoots flames out the pipe. It looks awesome, but I'm wondering if I'm losing horsepower as a result or if this can hurt my bike. Is my power commander adjusted right? any comments would be appreciated.
 

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I think that means its running rich, when unburnt fuel collects in muffler it explodes when it gets hot enough or something like that.
 

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Discussion Starter #6
Originally posted by africanjello
I think that means its running rich, when unburnt fuel collects in muffler it explodes when it gets hot enough or something like that.
That's what I thought. I was just wondering if some fine tuning of my power commander, or buying a timing adjuster, would give me a few extra horses. It may not be enough for me to worry about because it's kinda cool getting peoples reaction to the flames coming out of the tail pipe. I'll see if I can't get some pics and post them for you guys.
 

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Yes she is running rich, as far as losing power goes you might be losig a few extra Rear wheel horsepower.

As far as the tune goes, that is one of the 1st things you should do after a full exhaust and dialing your bike in...
Yeah you cant see it, for the bling factor but is just as important as getting your suspension set-up.
 

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Akra's are well known for shotting out flames after the engine is warmed up.... I wouldn't worry to much about it and just ride that bitch hard...

My buddy R6 does the same shit, always flossing the flames when we ride....
 

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my bike is the same way it's running very rich the tip of my muffler is blacker then anyone elses i ride with...i can't afford a PC3 to fix my air fuel ratio yet tho...the flames it often shoots out are like 2 feet long not just little one..
 

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I'm running akra slipon and it runs alittle rich. I don't have a powercommander. Once it's warmed up it's fine. I get alittle popping when decelerating... Nothing crazy.
 
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