fcr jetting

[400rider01]

I live in northeast ohio and I cant seem to get rich enough. I am currently running a 52 pilot 190 main and the clip is on the lowest position on the needle. If you look inside the pipe it is more of a greyish color rather than black. what am i doing wrong? Any help would be appreciated

[jeepeater347]

I live just north of you in Michigan and I run a 48 pilot had a 50 and 52 they where too rich and my main is a 178 and my needle is in the middle notch

[Airik79mx]

If your using good race fuel your pipe won't be black because it burns clean. But if your not I'm not sure.....but that jetting sounds very rich in a FCR carb. I think mine has a 45pj 175mj

[400rider01]

what mods do tou guys have done to your motor? Would that make a difference?

I have a 13to1 piston, hotcam stage II,crf ignition and ported head.

[Airik79mx]

My motor is done too....and my jetting is fine. What gas do you run?

[400rider01]

110 from a local gas station

[RedRacer44]

Yeah, with race fuel....you're pipe will stay a greyish color. Mine does with my motor and I have the same mods as you minus CRF ignition and porting. I dont have a FCR either but i have some experience with them and that sounds VERY rich for FCR jetting for a 450R. You need to go back down I think, you shouldnt worry about being lean. You can run a 4-stroke a TAD bit lean and it wont hurt. As long as you dont have lots of back-firing on de-acceleration....you're fine.

[ho416mx]

Are you guys running air box lids with the jetting that you have posted? Im getting ready to install a fcr carb on my 450r & need a starting point on my jetting. Thanks!!

[jeepeater347]

If your running a lid on your air box try somewhere around 120 or 130

[400rider01]

I finally got my jetting right. I am not running an air box lid. I have a 180 main 52 pilot last clip on needle and the air fuel screw out 1 1/2