Thanks for the info, I'm hunting carb intake boots at the moment. Unknown to me the guy I bought the bike from did a little a bit of hacking and the boots that are on the intake have been cut. He also put electronic ignition, different coils and carbs from an 76 xs500 on the bike so the research is a little more complicated. Those parts I knew he changed, but this is my first vintage bike and the learning curve has been a little steep since it left me stranded a couple weeks ago.