Gen 1: 2004-2005 removing secondaries without a power commander - Kawasaki
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post #1 of 6 Old 08-07-2012, 10:48 AM Thread Starter
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removing secondaries without a power commander

Anyone ever removed secondaries without having PC and notice and gain?
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post #2 of 6 Old 08-07-2012, 11:19 AM
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I removed them with a PCIII and still recommend you leave them in there. No amount of tuning got it as smooth down low as it was prior. Up top, didn't notice any change. My mph on the track didn't go up or down at all and suggested no change in power up top. Not worth it.

ETA: This subject has been beaten to death. Try a search...

Best 1/4mi ET: 8.98 @ 147 (stock motor, no turbo/nitrous)
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post #3 of 6 Old 08-07-2012, 11:56 AM
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I did it on my first 04 seemed to have way better throttle response and I think it was faster because I was worried about it running lean with no pc so I put them back in after a month or more and was so dissapointed I sold it!

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post #4 of 6 Old 08-07-2012, 12:06 PM
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I pulled my secondary butterflies in my first gen 1 and put a PC3 on it with a dyno tune. Didn't notice the difference before/after. On the second gen 1, I left them in and still didn't notice the difference. I'd suggest to leave them in. Just seemed like more work than it was worth (mine didn't come out easy).
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post #5 of 6 Old 08-07-2012, 03:20 PM
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when i 1st pic up my 05 the 1st thing i did was removed the sec flies bike ran good and it help throttle responce... only mods i had was k&n, leo vince slipon and -1 front sprocket.

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post #6 of 6 Old 08-07-2012, 06:00 PM
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I pulled the secondaries on my 04 with just a slip on, no pc or anything and noticed greater throttle response all around except it seemed to lean it out too much on the bottom end when you hammered it, so i put them back in

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