*Hisss POP* under hard acceleration.... - 600RR.net
Exhaust & Fuel Delivery Tips on how to get the most out of your bike

 
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post #1 of 5 (permalink) Old 03-10-2007, 12:41 AM Thread Starter
 
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*Hisss POP* under hard acceleration....

NewRedRider/Birdman, maybe u can help me with this one....

I had my power commander installed (I could have done it myself but I had such bad luck installing the arrow that I wasn't going to chance the bad mojo) and the dealer loaded the map/tweaked it. Well, under hard accleration (Full Arrow Ti System, Competition) from about 6-7k and up whenever I upshift I get a audible *hiss pop*. Am I running lean? To rich? I know I need to get it in to a dyno but I guess I was hoping I could do a little tweaking of my own to at least solve the problem. I am a little hesitant becuase A. I don't have a dyno B. I don't want to **** it up more.
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post #2 of 5 (permalink) Old 03-17-2007, 05:24 PM Thread Starter
 
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Anyone out there.
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post #3 of 5 (permalink) Old 03-17-2007, 06:10 PM
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whenever your bike pops it is from a lean condition.u need a richer mixture.bikes that are running lean will pop on deceleration when u chop the throttle or in your case it is poping when u upshift cuz your closing the throttle for a split section to upshift hence going lean for a moment
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post #4 of 5 (permalink) Old 03-19-2007, 03:55 PM
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When i deacclerate, my pipe backfires, is that mean it's running lean? I am running one of the custom map from over at 1000rr.net.

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post #5 of 5 (permalink) Old 03-19-2007, 04:08 PM
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i'm pretty sure the bike is gonna keep backfiring on decel like that until u get a custom map done at a shop, i've got a pc3 with a map d/l from the net and it backfires. and backfiring in the exhaust pipe is running rich, unburned air/fuel gets into the exhaust and then gets ignited,

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