I picked up an '84 650 Nighthawk for parts some time ago but before cannabalizing it I thought I would see if it would run. It had been sitting outside for perhaps 15 years or more before I got it. So, I did the usual things with particular detail to the carbs. Two diaphragms were tattered on the edges, blah, blah, etc. etc. Without a motorcycle battery I just hooked it up to a car battery. The thing ran and eventually smoothed out to one of the nicest sounding 650's I have ever heard and the acceleration on the stand is great. Engine is quiet, no knocking or cam noise. I kept it going long enough to synch the carbs. But when I put a voltmeter across the battery it only edged up to about 12.38 v from 12.25v. The starter motor I think is bad since It took me a while to get it to turn over and then it turned over real slow. The second time it took some turning of the rear wheel in gear and taps on the starter motor for it to start. Having said all that, anyone know whether the apparent charging problem could be due to using a car battery or a bad starter motor? I don't want to hear that it's the charging system! Graham
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