YapaKanichi

Ok I need help. Idle is down 500rpms and horrible gas mileage, backfires, I don't know what to do. HeLP!

Kentetsu

Make a quick check for spark at plugs for starters. How have the temps been (warming up properly)? Is there a strong smell of gas in the exhaust? Then, of course, there's the infamous vacuum leak to check for...