You can check the temps by doing the spit test. Drop some spit on the cooling head and see if it sizzles off like bacon if it does then it's deffinatly running too hot. It should just kind of simmer or off slowly in about 5 seconds or so. THat will give you a good idea if it's running too hot. It could also be something as simple as the idle screw needs to be tweeked alittle. As the engine breaks in the idle will change and it will start dying when you hit the brake, give the idle screw a small tweek and then give the HSP screw a small tweek lean and run it around see how it runs. Tuning takes some practice and the only way to learn it is to take the dive and do it.