Recently my bike just started crappin out. Ill be on the highway or surface streets and as long as I'm on the throttle its fine . But if I let up like when I go to split lanes on the freeway (california) ill downshift and go to rap the throttle up to let them know I'm there and I got nothing. It'll sputter for about the first 1/4 turn on the throttle then nothn the last 3/4. And if I let off it'll idle kind of rough then sometimes sooner than others (maybe 30-45 sec)itll pick back up and run strong. Ive changed my throttle pos sens & crank pos sens. I thought it as fixed but the next day same again

I just posted but I guess it'd help to know what kind of bike. Its an 04' FXDLI at least the frame and what not. I threw a rod and stabbed a 96" for an 07' dyna and tranny in/outter primary is 09'

You mean a HARLEY? The frame? You don't know what the engine is?

Dirty jets? Debris in gas filter?