Been a while since I was here! I just got back into mini biking with a new Coleman B200RSV. I'm very happy with it so far. My question is about the 196cc engine....I thought I heard somewhere that the 212 Hemi uses the same cams as far as journal sizes. I don't like how the Colemans have a plastic cam gear...it just bothers me. Hoping to open it up one day and swap in an all metal cam. If the Hemi cam fits, I found take out units on ebay dirt cheap. Will they work? Can I use my Coleman tappets or do I need the Hemi ones? Also curious if anyone knows the lift and duration of the Coleman cams vs. the 212 Hemi cams. At this time I'm not interested in a performance cam or other mods....I fell down that hole with my old MM212 and it became scary. I like the bike as it is, just want long term durability.