Looking around I found a 90t #25 sprocket ($20) I can use with my 13t "pinion", or I can get a "pinion" from mcmaster car with set screws ($5)... Chain will cost me $10 from mcmaster, I need probably 2.5-3'. It would be nice to get all three Items ($35). I'm working 16 hours this weekend so I could get this stuff as a reward...
I found a 5k ohm sliding pot that could be hooked up into a throttle pretty easily. Just put a small rubber band on it (gluing the ends) to return the throttle to neutral and I'm set..
Can you give me an example of an "industrial salvage yard"? I live by a city of 200k and there's nothing even close to that around here... jesus it's probably 400 miles to a place like minneapolis or Kansas city.