On my 90 Evo I have always had to run with the enrichener on as I have changed both the intake and added SE slip ons MANY years ago. It needs full enrichener to start cold, then needs 1/4" to 1/2" out on the enrichener to run without popping once it warms up. I have never had any issues with it as it has always ran like a top like this, never fails to start, idles great, power is good. After reading a lot here about rejetting after stage 1 mods or changes to the engines breathing I now am wondering if I need to change the jets, or is it fine to keep running it this way. 50,000 miles running with enrichener, so I can't see it has caused any harm (at least I hope not). Will it change anything other than not needing the enrichener when warm if I rejet?