95 suzuki intruder vs800 Backfires on deceleration. And when on the highway going 70mph in 5th gear it will stop firing in front cylinder after a few minutes! the bike had sit for two years before i got it. I've cleaned the carbs and changed the sparkplugs. front cylinder had a fouled plug. i had a feeling that I wasn't getting enough power from the bike. And was right since it was only firing in the rear cylinder. i changed the plugs and it was like a new bike with tons of power as compared to before. but now the bike backfires on deceleration and at high speeds will stop firing in the front. I'm thinking that the front carb is is running lean and needs tuned better to match the rear which is probably getting all the gas. any extra input would be appreitated.