I just wanted to share a neat (stupid) trick I learned while fooling around with NGK spark plugs. I've been using BPR6HS and BPR7HS plugs with my bike. I've noticed that the 7 plug runs a little too cold and the 6 plug runs a little too warm (each plug's gap is .025"). Well I took my 6 plug and adjusted the gap to .030" to cool the spark down a little. The bike runs just fine now
I've also fooled around with the carb settings to see if that would help, but I end up having to set it a little rich to get a decent idle.