Hey guys, I have really bad fuel delivery, it runs lean at high throttle, backfires, surges, etc. Was all tuned and running perfect, had a cracked piston/rebuild, then started having the fuel issues. I have replaced the fuel pump and filter, and inspected the soft lines/fittings, but I'm stumped now.
I'm thinking:
- Fuel pickup
or
- Clogged hardline
or
- Something up with the carby
Anyone got ideas?