My buddy just picked up a GS1000L last night for 700.00. The thing cosmetically is flawless, braided brake lines, nice glass packed exhaust, etc. The bike idles well but when you get on the throttle hard it seems like 2 cylinders drop off. There doesnt seem to be any leaks and the previous owner was convinced it is probably the coils. Any input would be greatly appreciated. At light throttle the bike is perfectly happy but as soon as you get on it hard it bogs down and 2 cylinders drop off.