Hey guys what's up. As some of u know me on here and know what I'm riding if not 04 ltz 400 niche bbk now it's a 434 full yoshi exhaust fcr 39mm carb no air box. My problem now with this whole rebuild thing is I think it's the carb. The head pipe is glowing cherry red which indicates it's running lean. I cleaned the carb really good I'm running a 170 or 175 main jet and I'm unsure now if I replaced the pilot jet well a shop did I think they replaced my 160 mj but the pilot not sure. And one other thing is it won't run off choke it will idle pretty high but once I take the choke off it stalls out if u try to keep it running it's popping like crazy can someone shed some light on this me ?