Just put on a Graydon full exhaust K&N filter and dyno 185 Jet...I'm not sure if its the limiter I'm hitting in 2nd gear or its not jetted properly.any suggestions?

01 black Ds650
Graydon full exhaust
Graydon nerfs
ITP Holeshots 20x11x9
ITP Holeshots 22x7x10
K&N Filter w/outerwear
Graffics removed.....all black

 

Sounds like the rev limiter,whats the plug look like?

 

plugs look good.......its the rev limiter......thanks for the input........

 

I,m in te same boat. Just got my Ron Woods CDI today. It better fix the problem or I I I I I will sell it and buy a ???????. forget I said that.

 

Hitting a rev limiter is not a problem - getting rid of a rev limiter doesn't fix anything, there is nothing to fix. The rev limit is set at 7700 by Bomb because there is little to gain from a stock motor past this point so they figured why bother going higher - save on motor wear. If a rev limiter is hit, then shifting needs to happen sooner.
I have a RWR CDI for the performance gain offered by the advanced timing - this is what allows the DS to actually pull past 8000rpm in 5th gear - the stock timing curve would not allow this, even if it had no limiter. I still don't rev past 8500 in any of the lower gears though - there is no need - shift to the next gear first. The meat of HP porduction is well below this.