My sled was idling really rough and tended to stall. So tonight I took the exhaust vavles apart, cleaned them, cleaned the oil pump with some carb cleaner. Everything seems to working fine, so just for the hell of it, I pulled my plugs. I didn't notice when I put them in, but one of them didn't even have a gap. Does anyone bother to gap their plugs before they put them in? If so, what gap do you use?