hey thanks for the input on engines. I got a lot out of the tips page wow a lot to know, still in air on engine going to research some more. next question has any one ever built a home made trailer for one of these bikes,something like the ones to put your kids in,I dont have a job at the time so I was going to start junkin again need a trailer to haul my junk again thanks for your post they help on my engine decession later