HI guys, I run the "old" and original KX500 web site. I needs some help. Question, my neighbor bought my 89 KX500, he put a new head gasket on and it fires right up, no leaks, but it blubbers bad under load. You can sit in neutral and rev it, no problem, but in gear it runs lousey and uses a ton of fuel! Ideas?
Thanks
PJ
PS Nice Site!