bad exhaust stud = lean situation?

super noober

Can't Stop, Won't Stop!
Feb 17, 2009
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upstate ny
well does it? checked my plug and it was quite white, only problem i found was a bad exhaust stud that wasnt biteing good at all. trying to pinpoint the issue...
 
lol, omg you guys how many times have i talked about riding outside when its 10 degrees? the jetting is fine, ive rode it harder,longer, and its been colder then when this popped up. i had no issues i was just checking my plug for sh*ts and giggles and noticed it was pretty damn white, only thing wrong with the machine is the bad exhaust stud. thanks though :)
 
oh you guys... i know its lean, durka durka.... lol ive had this same jetting, 300 main, stock pilot and the needle on the 4th clip all winter and i have checked the plug numerous times and its been good all along even when riding really hard through deep snow when its been waaaay colder. my issue is now all of a sudden im getting a white plug but its warmer out and the machine wasnt getting rode that hard the last time out and the only problem i find it the bad exhaust stud.
 
bong-squad.jpg
 
no only if its on the intake side i belive. exhaust side doesnt matter. you prob rattled some sh*t loose like head/jug bolts. leak down test
 
im running a 300 main in the mrs bike in 80 degree weather..
plug chops need to be done..
idle, mid, and wot need to be seen to know how much more pilot, main or needle it needs.
its a pain in the a#@ but not doing its gonna cost you in the end..