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Discussion Starter · #1 ·
Hello there!
I'm having some trouble with my bike. It was running fine and then one day she just dies on me. Its a 1973 Cb350 project that I brought with a rebuilt engine but the bike was in pieces. So I put the bike together, I had a custom wiring harness that I made out of the original, the point is it doesn't have any lights or anything of that sort, so the power just goes from the battery, through the coils, through the charging system and back, with just the kill switch for the ignition and all. As I've said that worked out fine for me for a little bit until I think the coils failed on me, when I took the old ones off, it was pretty easy to just pull one of wires from the coils. I got new Dyna 12v/3 OHM DC1-1 coils and slapped them on the bike, she still wouldn't start. Nothing is grounding out in the points plate. Replaced the points, the whole wiring harness, the rectifier (need to get a new regulator, lost it a couple of days back wheeling it over to the gas station.) Besides the electrical, I've cleaned the carbs twice, float-bowls are fine, the cylinder is getting gas, the spark plug is wet. Once I tried starting the bike without the lock nut on the rocker arm adjustment pit, but I checked the rocker arms themselves and they seem to be just fine in terms of adjustments. Other that that, I tried hooking the bike up to a car battery through jumper cables thinking that my battery was bad, but still nothing. Maybe the coils require some special gauge of wire going to them to function or something, but I didn't find anything in the manual. Thank you guys so much!
 

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To JUST get power to run the engine, Ground battery negative to the engine, connect the point wires to the appropriate coils, (front-most points to left cylinder coil and the plug wire from that coil to the left spark-plug... Rearmost points connect to the right-side coil) and connect battery positive to BOTH the coil positive wires (both Black with white stripe wires).... The engine should now start (kick-start) and run ASSUMING it is correctly timed (both cam to crank, and point timing)...... Make sure to disconnect battery positive whenever the engine is not running or about to be started (or add a switch inline)...The old "kill" switches are a known failure point, so not a great choice, and likely your problem.....
 
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