My son bought or bartered for this bike and for a year we've been trying to get it to run, at least run better. The bike sat for years and the carbs needed some real attention. So when the boy first got the bike, he found out that the original owner and his nephew tried to clean the carbs. We'll the stupid thing about these carbs as told to me by the guys down in California at Mikuni are the smog adjustable screws on the bottom of the carbs. These stupid screws can only be correctly adjusted when the carbs are off the bike. Can't adjust while hot without a $78.00 right angle screwdriver. The repair manual even says leave them alone. But to do a good cleaning of carbs that have been all gunked up, require a complete cleaning. We'll the cleaning was done again and again, etc, to only leave us scratching our heads. The Mikuni guys say one complete turn to 3 turns. What happens is the bike has a vicious lean problem off idle and when pulling away from a stop. The tank has the vacuum petcock and had to be blocked off as well as the carbs. So my question if I was clear enough with the story is, does anyone have any experience with this GS 750's. We put filter pods in place of the stock air filter, thinking this might clear things up, but heck no. Any help would be great. Hate to have to pay those high repair shop hourly costs if we don't have to.