A friend of mine just picked up a CB750. I'm not sure of anything more about it yet, I havent been able to get over to see it yet. However he tells me that onse it starts gas comes out of everything on the carbs, and the bike will only run at high r's. Any thoughts of stuff for me to check before I get over there? I've never seen anything like this, but I've also only ever worked on carbs from cars and Cushmans. Thanks for any help you can offer.