I have a 88 yamaha razz I need to know how to make it go faster heres what I did so far- I drilled into my exust which did nothing but give me a loud moped, then I boored out my engine head just a little that give me about 2 miles more. but I have friends with faster mopeds like a zuma that goes 45 and a spree that gos 34 and a express that goes 35 and 2 elites that go 32 and 36.
I need to get more speed please help me
andy