stumped and going crazy

Gt the 88 trx3002wd running again. New coil, CDI ,plug and carb.It fires up at the slightest touch of the button and idles all day and revs through the rpm range smoothly . BUT…..As soon as i start ring it runs like absolute s@%t.Getting great spark and constant strong flow of fuel.It want die or stall out, just like its on rev limiter the entire time.pull plug and its dry sooty.Any ideas???? I was leaning towards valve adj but wouldn’t it run like crap in neutral reving to if it was valves.

stumped and going crazy

Gt the 88 trx3002wd running again. New coil, CDI ,plug and carb.It fires up at the slightest touch of the button and idles all day and revs through the rpm range smoothly . BUT…..As soon as i start ring it runs like absolute s@%t.Getting great spark and constant strong flow of fuel.It want die or stall out, just like its on rev limiter the entire time.pull plug and its dry sooty.Any ideas???? I was leaning towards valve adj but wouldn’t it run like crap in neutral reving to if it was valves.