Yoshimura RS3 Slip on And Power Commander - Kawasaki ZX-10R.net
 
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post #1 of 10 Old 11-05-2004, 08:54 PM Thread Starter
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Yoshimura RS3 Slip on And Power Commander

I installed the Yosh RS3 slip-on a few weeks ago and I am noticing, especially now that it's gotten a colder, that when I back off the throttle the exhaust rumbles almost to the point of a full backfire.

Could I need to remap the fuel and air, just from swapping the muffler?

Thanks
Phil

PS- also has anyone else purchased Yosh pipes? I'm finding their tech support not responsive at all and their dyno charts are for mostly older bikes.
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post #2 of 10 Old 11-05-2004, 08:58 PM
 
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cold air= more dense air, combined with probably tons on extra fuel in the exhaust when you close the throttle... its gonna back fire.
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post #3 of 10 Old 11-06-2004, 08:10 AM
 
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Did you perform the KLEEN mod? That will help a lot but not totally eliminate.
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post #4 of 10 Old 11-06-2004, 10:48 PM Thread Starter
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I have not. I removing the emissions really good route?
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post #5 of 10 Old 11-07-2004, 01:09 PM
 
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yes, because you are no longer routing fresh air that will detonate and cause the popping as it burns.
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post #6 of 10 Old 11-07-2004, 10:09 PM
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Mine backfires as well with RS3 and PCIIIUSB...your bike and mine did this before the mods, it was just hard to hear on decel with stock pipe and Exhaust valve closed. I think noise is the main reason for that thing..mine is full time open now and the bike is much louder at idle...me likes!!
Hey, I bet I get 2x the miles on that front tire now with the mods done...it seems to be on the ground half as much...LOL
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post #7 of 10 Old 11-11-2004, 02:29 PM
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Yeah I've got the TRS full sys. with PCIII and mine still backfires a little. I kind of like it sometimes though. My real problem is the throttle response, it's pretty touchy, I'll be trying to tame that this winter.
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post #8 of 10 Old 11-14-2004, 12:34 PM Thread Starter
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BNninja (Chris) and I peformed the KLEEN mod to my bike this weekend and I no longer have any of the backfiring issues.

Very cool stuff!!!

FYI- If you opt to drop bolts into the engine compartment, double your estimated project time ;-)

Last edited by circusnuts; 11-17-2004 at 05:24 PM.
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post #9 of 10 Old 11-14-2004, 04:23 PM
 
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Oh yes, three tear down day it was. I took my bike out today and can't believe the added power by a 10 degree drop in temps.
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post #10 of 10 Old 11-16-2004, 09:32 AM
 
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by doing the KLEEN mod....it will eliminate some of the backfiring but not all....
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