400ex jetting help

[nicktrx400ex]

alright i did a search on this and found nothing i went riding today and when i would hold the clutch for like 5 sec. it would stall even if i held the throttle down alittle. when i rode it it would feel like it couldnt get up to speed like i was dragging a house or somthing behind me i think my jetting might be to lean i did have half tank gas is good gas so help me quick i have 155 main and last slot on needle

[nicktrx400ex]

i was at 160 main 4th slot on neddle i went up to 165 and it would knock off just trying to go in first gear someone hel me out its about 85 degreese out here im now thinking im too rich what is everyones thoughts

[gojufist]

what does your plug look like?

[400 SS EX]

I also agree, check your plug, warm up your bike and wrap it out in 4th or 5th gear and hold it wide open few a few seconds. Kill it, pull in the clutch and take out the plug. Black is too rich, white or real light gray is too lean. I have stock bore with high comp. piston and a cam and I'm running a 162 main, 4th needle pos., 40 pilot. mess with the fuel/air screw a bit too