As the topic says, I currently have the Yoshi RS-3 full SS system on my bike
with a Factory jet kit + K&N, here in Houston on my 97'. I purchased the bike this way, and I heard that the 5K RPM "flat spot" was eliminated or reduced with this setup, however I still notice the dropoff. This is prompting me to look for another setup...

I have no idea what HP the bike is supposed to be producing with this setup. I've been looking at the Akra full, but I was wondering if it wouldn't be anything more than an asthetic upgrade?

Oh, one more thing - how much HP should the bike be producing with the Yosh full + Factory Kit + K&N? How much with the Akra fulll + Factory Kit + K&N?

I don't think the problem is your exhaust. I'd put money on your jet kit not being setup right. I'm not a carb guy so I can't help much on this.

Between full system exhausts you shouldn't see more than a few HP differance. I'd guess your bike as is should make 130-140HP depending on elevation/temp etc....

I would agree. I have a 97, jet kit, K & N and Scorpion slip-ons. No problems. Find a good dyno shop with someone that knows how to setup a jet kit, I'm betting that will fix your problem and you will know what kind of HP your bike is producing.

My '97 with full RS3 system showed 139hp on the dyno.



Rich

Only 139 :twisted: ?? My FJR showed 135 last year. :D
This year I might put my XX to the test...I'll let you know then.
Mine has a Full Akrapovic system. Bought it that way, so don't know about a 5k rpm prob

Xuma
Porto - Portugal
FJR1300 '02
XX1100 '97
XT600 '93