Weird bog when little gas but great at high rpm + spark plug picture.

[ric-ross1]

I did a plug check after riding her for maybe 1hr and its running rich which is maybe why it boggs when giving little gas, if i give it alot then its perfectly fine here is the picture of the plugs:

these are my mods:

Stock motor, fatty pipes and fmf silencers, k$n filter open lid, running 32 to 1 yamalube with 93 oct and this is how i had her running with

27.5 pilot

280 main

Needle clip in the middle

Air screws 1.5 turns out.

 

I got me some 260 and 270 main jets to see if it help the bog and the rich condition. Any suggestion appreciated.

[Larry's Shee]

What plugs you using? Air filter clean? Boggs when you stab it or roll on? 1/8, 1/4, 1/2? Might try leaning air screw 1/8 turn at a time.

[ric-ross1]

Br8es the one almost everyone uses, when it gets very little gas if i stab the throttle is hang on lol and the filter is brand new k&n only has those 60 minutes of run time.

[250rbanshee]

Probably rich on the pilot.  I'd go back to stock 25 pilot jets and see what happens...1.5 turns out.

[ric-ross1]

Thanks man, i will go ahead and check the slides are in the right carb and go back to my 25 pilots since the bike runs great at WOT, just a brat to start and feels like it gets too much gas.

[vulvafan537240]

whats your elevation? 280 sounds a little rich with a airbox. i ran a 290 on my old setup with pods.

[ric-ross1]

 1,138 ft (347 m) is my elevation and open air box with k&n filter no lid.

[06BCBANSHEE]

you figure out your jetting??

[ric-ross1]

i went to 270 main and is getting better.