Just break it in slowly. Your engine will feel a little different when it's broken in and you've used it for a little while. Then ride it to a distance you feel comfortable riding it. See how it does. ** Like you I was uncomfortable at the beginning not knowing the motors' limits. Now that I know how it behaves, I can easily do a 40 mile trip a day, ( 20 miles in each direction) without worrying. Sounds like you just gotta give it a little time for you to get acquainted with your bike. I WILL SAY THIS, YOU WILL NEED TO CHECK THE BIKE BEFORE EVERY RIDE. Give the chain a good "wiggle", too loose? Adjust the tensioner. Can you push your motor side to side? Any movement is bad. DO NOT OVER TIGHTEN THOUGH. Should just be snug. Try and give your carb A slight gentle Twist, does it move? It shouldn't. Check your motor mount nuts, are they tight? Have they moved? Double up on them, and use lock-nuts if you have them. You will have to do this every time you ride. Does not take nearly as long as reading this. It will become second nature if you ride the MBs enough. Oh yeah don't forget to have fun. And to answer your question unless there's an air leak somewhere, no. Your engine will run hot, and you will feel the heat if you ride with shorts on. You can upgrade your head cover to a CNC aluminum head cover that will help with heat dissipation and may even give slightly more compression. Will it still seem like its running hot to you? YES. Will your engine have a less chance of overheating and heat related failure? YES. It will still feel hot to you, but your motor will thank you with miles of ride time.