Hi everyone. This is Yvan from Guelph. I'm a technology consultant and I love pretty much everything with engines. I have an 80cc Chinese 2-stroke kit on an old Raleigh mountain bike. I have a love/hate relationship with it. I have about 1 hour riding it and about 24 hours working on it. It has been off the road for a couple of years because I wasn't able to source a replacement drive gear but I finally picked some up on ebay. You can read more on my blog. I'm currently trying to get it to start. Lots of spark and compression. I've tried two different carbs but no luck. It will have to wait until next weekend. Pro tip: Spending hours riding in circles trying to get your bike to start? Remove the ignition system cover and use a drill and a 14mm socket (clockwise) to save a lot of sweat and sore muscles. This is how the pull-start works.