tdwhite

Thanks for the help guys. I can google this but does anyone here have any solid steps to rule out one thing over the other. Like what to check first, second, third for spark and how to actually rule them out? Here's some pics.

I'll get some pics up ASAP. I paid $60 for her and would love to get it running to just putt around on.

Ok, well I just bought a DT100 a few days ago. It's orange with "100" in a black and white vertical stripe on the tank. It's mechanically all there, over the years previous owners have removed the headlight, turn signals, spedo, brake light, ignition switch. That doesn't bother me I'll never run it on the road. Otherwise it's all there. It's been sitting for a few years. Engine turns over fine, the carb opens/closes freely, the clutch, although it doesn't seem to disengage does pull and return freely. I have no spark. The woman that sold it to me tells me her husband thought it needed a new shear key between the crank and flywheel. I've never seen these go bad but, I'll check that out. In the meantime, I have a few trouble shooting questions. 1. How exactly would I go about testing the coil 2. How is the best way to break the flywheel nut loose? I'll get a puller but should I just have someone sit on the bike with the brake on in gear to get the nut loose? 3. How do I time the bike if not running? 4. Will this bike run without a battery installed? Thanks for any help! td