Hey there! I have gone through the repair forum and read through the Honda Express Repair sheet and haven't found an answer. I am a first time moped owner, I just bought it last Saturday. I checked all the things I knew (made sure gas tank had no rust, checked tread, oil and gas lines were clear, etc). It started up on the first kick. This morning I rode it to work which is about 3.4 miles and it was great! On the way home the same distance however, it started sounding strained and then shut off around 2 miles. It wouldn't start back up immediately, but I let it sit for a few minutes and sure enough it started up again. Unfortunately for the last 1.4 miles home it was stop and go. The only thing that comes to mind is maybe it is overheating? Any ideas on what this could be and how to fix it?