Ok, Took the carb off, rejetted from 64's to 61's and it ran worse (64's came installed from the factory for sea level and we are at 5,700 ft)so we put the 64's back in. Now we havent had a problem starting it. I did notice the fuel boiling a little in the glass filter though. We dont have a temp gauge but something we're seriously considering. We havent driven it further than 8 miles on one outing and havent gone over 50mph yet. Should we expect things to get hotter if we drive further, or would this amount of driving be sufficent to stabilize the heat we can expect?