Originally Posted by alphaBETAdog
I'm thinking of starting off simple with just putting a 2stroke kit on my old Trek 850...
I recommend against using an old bike for your first build.
Unless the bike is in near shape you really want to start with a new bike so when you have operation problems you won't have to troubleshoot/fix the actual bike itself.
You can get a beach cruiser from Wallmart or K-Mart for ~$120.
Use it to mess around, experiment and learn with.
Once you get the jest you can move your already broken in motor/drive-train parts to a nice frame.
That's how I would start if I got it do over again anyway ;-}