I need help jetting for new filter

[tacoking]

I just installed a proflow filter on my banshee and it runs like crap. I have the following mods done. Fattys, cool head with 21cc domes, and the intake. I was running the pipes with the lid on, no snorkel, and stock stock filter with FMFs jetting 30pilot 260mains at about 500' 65-90degees and it ran great. I installed the new filter with no lid and 290 mains and it's boggint real bad. I rode it Pismo and it would barley get in the power band and could not run around at 1/4-1/2 throttle on any sort of incline. It had to be wide open or nothing, but wide open didn't feel strong. I am thinking its jetted way to rich so what should I got to? Maybe a 280. It seems like everybody is running 300 or bigger so why would it be to rich with a 280? Thanks for any help

Edited October 27, 2004 by tacoking

[Ducman]

Your jeting is good, your problem must be a mistake somewhere in the reassembly of the carbs or something that is incorrectly functioning with the carbs. You wont notice much difference going from a 290 to a 280 main. I doubt it would actually bog really bad like you mentioned untill you went up to a 340 main and raised the needle all the way up with your set up. I would start trouble shooting rather than tuning.

[FIRST BANSHEE]

1/4 to 1/2 throttle is where the pilot circuit working, clean the carbs and try again

[tacoking]

I know I put them back together correctly. There isn't much to screw up on unless the slides can go in backwards but I don't think the tops of the carbs would screw in. Correct me if I am wrong. I just put the 280s in and adjusted the air screw, so I will see how it does. I had major issues starting it so I pulled off the plugs and they are very dark. Replaced them with new ones and it started up right away. They must have been fouled. My girlfriend rode my biike last and was luggin it in 3rd most of the time. Let me know if there is anything else I can check.

[tacoking]

So I through in the 280 mains and adjusted the air screw about 1.5 out and it runs like a camp. At least on the road. I am going to Ocotillo this week end so we will see how it does up blow sand.