ok, as my sig says i'm getting ready to buy a yoshimura rs-3 comp full system, carbon fiber canister for my 03 z400. along with that ill run my uni filter, rejet and run a ehs racing outerwear lid, which jets like running no lid. my problem is what jetting size should i run? i hav no idea, i'm hopeing yosh can give me some help, if they give me a size for lid on with the exhaust ill try a few higher and see how that works, but any help anyone? thanks
RippnZ

 

The size of jets could vary depending on the brand of jets you use. I have the yoshi rs3 full comp pipe on my 2003 Z400 and airbox lid removed with a K&N and outerwear. I am using the Dyno jets. Since I'm at about 5000 feet, I am running the needle on the 2nd clip and a 146 main jet (as recommended in the Dyno jet instructions. The DJ instructions recommend the 3rd clip below 3000 feet and a 150 main jet. The recommended jetting has worked well for me. I haven't had stumbling, sputtering, backfiring etc. I don't know if the Uni filter will make any difference for your jetting. By the way, how much is the EHS lid, I was considering getting one.

 

thanx for the help yoshz, i was planning on dj jets as well. ill just bet on their instructions i guess. the ehs lid, from their ebay store, is 40 or so to convert your airbox lid, or 80 for a brand new oem lid already set up with the set up, which is what i'm getting, because then u dont hav to cut your old lid and all that.

 

also u can get lid from www.ehsracing.com

 

I just run with no lid and I am also above 5000 feet. No lid and full LRD I am running a 147 which is just about perfect. Oh that is not a DJ. I got that from the dealer...

Here

 

thanx for help, sadly enough i live in rural indiana at an elevation of arond 850 feet lol. so i'll test around with dj's and ask my dealer maybe. thanks tho.