I put a power commander III on my bike in the past and didn't map it correctly. The bike would crank but would only stay running if I held the throttle open. I've switched to a PCV and now the bike wont start (no longer have the PC3). It turns over but, only backfires instead of starting. I then smell fuel as if it's flooding. I have Yoshimura bolt on exhaust pipes so I'm running the map M20-023-005 (Yoshimura Bolt, Stock Air filter). What could be causing the bike to backfire like this and keep it from starting? Any recommendations?