Spark Plug Color

[BansheeTeam]

Hey everyone! I'm facing a problem with my spark plug color and jetting. My plug is always black and wet I mix 36:1 and run a 300 main jet with stock pilots, Dynojet needle on 3rd groove. I think im running lean right now cause it's only when I hit 6th gear and WOT I notice a bog and loss of performance. I run Pod K&N's with outerwear, toomey t5's, v-force reeds, 15/41 gearing, adjustable timing plate (so far on stock position I am going to +4 soon) . I am thinking of changing my fuel mixing ratio into 40:1 and running a 30 pilot thinking it might help with the bog problem and top speed cause once when I was testing my top speed I was at WOT and my Trail Tech Vapor indicated 143.7 km/h (89) but there was a bog so I slightly let go of the gas and the speed increased to 146.8 (91.2 mp/h). Also this happened a couple of times i notice if I'm riding down road it doesn't do as much top speed as riding up road i even have doubts that it clocks a higher top speed if im driving up way then straight and down cause I usually hit 136, 7 ish (km/h) but that time for some reason my top speed was really impressive and i'm really happy with it.

 

What should I do about my jetting I have 270's 280's and 340's that came with my Dynojet kit should I install just the pilot or the 340 or both I know 340 might be kinda rich but I can keep my mixing ration 38:1 or 36 + the weather's gonna get cool soon and im going +4 degrees on my timing or should I get a pair of 320's? My elevation is sea level the weather over here is around 90-100 F but will soon be around 70 even lower at night it could go as low as 50 so its kinda complicated cause i'm not a 100% certain as well but lets say it's going to be anywhere from 65-80

 

Thanks for the help

[ClayAiken]

36:1 is a weird number? Why not use 32:1?