Originally Posted by racohoon
El Taco- why are you hot wiring? Is it because you do not have a key? Get one made from a locksmith or get a used ignition cylinder. Also make sure you have a very good battery and it is fully charged. If it isn't, you'll crank it over all day long with spark and never get it started! Vulcans don't like weak or slightly discharged batteries.
I'm a little concerned about the fact the engine is turning over and is not locked up, yet you stated that it would not turn the engine being pulled behind a truck? (WHO THE HELL TRIES THIS AND WHY?)
Did the rear tire turn at all? It sounds like you may have gear/transmission-drive shaft-or spline/final drive issues if that rear tire isn't turning.
Also as Cegodsey pointed out a 700 in a 750 chassis or vice versa will not work--the wiring harness is specific to that motor-- each one has it's own harness.
It was a freebie. Come get it type thing, you know? Someone had removed the ignition switch, leaving but a contact plate and pigtail. The signal lights are gone, and the wiring looks a little chopped.
Remember, the guy that gave it away was nothing close to a motorcycle mechanic. Why they pulled it behind a truck is beyond me. I did notice that you can grab the shifter where the lever clamps on, and pull it out about an inch or so, then push it back in. Doesn't look good to me. Could have a drive problem, but I haven't got that far. Also haven't tried to shift it yet. Figured I'd make sure I have a solid engine, then go from there.
I've initially hotwired just about every bike I've put together. I've been riding for about five years, and never once put more than $50 into a bike. Never paid more than $25 for any motorcycle, with the exception of my 76 Husqvarna 360CR, which I happily paid $200 for.
Should the engine be strong, I will fabricate my own wiring harness, one simple enough for a monkey to troubleshoot. It will also occupy about half the space, and cut about 50lbs of wire out. *exaggeration*
Considering I have about eight SOHC4s, I can understand that I may actually have to PAY MONEY for Vulcan parts, as crazy as it sounds, but I'll wait until I absolutely must.
Anyhow, it turns over and rolls just fine, as if it's in nuetral. I'm not using a fresh motorcycle battery, but jumper cables off of a running truck. I'm grounding one side, with my hotwire tied to the positive cable, while I bump the cable against the starter lug.
The way it's firing, I would think the modules are working, considering it's a bright spark that fires like clockwork as the engine turns.
Also, cast into the cylinder is 749cc, and the parts motor has 699cc cast in the same spot.