Put a new fuel filter in, also check the fuel pump. It is prob the orig pump.. Easiest way to do a pump is take the bed off.. It is a pita *** to do one if you have to drop the tank, don't have access to a lift... Its one of the 2.. Also run some fuel system cleaner through it for good measure..
John
440ex PPE Stg II headwork, Kibblewhite springs, Crf timing chain, stgIII H cam, Wiseco 11-1, GTT studs, Cometic gaskets, 450 carb, Sparks cdi, Oversize oil tank, LSR +1 stem, LSR +2 arms, , dura-blue X-33 axle, Dura-blue hub/fade/carrier, TAG, Hinson clutch/basket, HMF full pipe, ITP, ASM, IMS, DID X ring, UNI, UM, MAIER, Pro Armor skids, Stainless bolts, brake lines, 450r shocks, Sidwinder, Tusk, Wave.. A lil sprocket work,