norcaldt175a

I had a oil throttle cable on my bike(1974 DT175)with a broken-off cable tip at the pump end. I made a new tip and soldered it on, but it looks like the cable is too short. Can anyone tell me how long the cable should stick out past the housing and/or total cable length? Thanks!

Is the voltage DC coming from the magneto or do I need to run the line through the rectifier?

Where could I get a voltage regulator that would work?

I have a 1974 DT175 that I just got running. It's been converted to a dirtbike (no battery or lights), and I'd like to just put a headlight on it. Which wire coming from the magneto should I connect to and how do I control the voltage so it wont dim with different engine speeds? Thanks!

Well, I fixed the problem. Turns out the points were gapped too wide, which surprised me, since it had already ben running and I hadn't changed the setting. Perhaps the adjusting screw had worked loose. Thanks for your help. And sorry, I'm keeping the speedo on it.

Yes, It's still going to be used as a dirtbike, with no battery and no key switch, but I'm keeping the engine kill switch, and this worked a few weeks ago just as it is. I tried several spark plugs and got no ignition, so the problem must be somewhere else in my ignition system.

I got a 1974 DT175 that had been converted to a dirtbike(no lights or battery). The wiring has been redone and seemed to work fine before, as I had it running with this configuration, but after I've spent some time fixing various things on the bike(but not messing with the electrical system other than changing the spark plug), I can't get any spark. Can anyone tell me what electrical component could have failed or where the problem might be?