Honda ct 70 timing advanced

Answer 1

Hi! Could you clarify this a bit? I'm not sure exactly what you are asking. There are timing marks on the flywheel, they are 'before' the TDC marks as you turn the flywheel counterclockwise, the normal direction of rotation. An ohmmeter on the points (as I recall) will tell you when the points open, which is the point that the engine is 'timed' at. It has been a hunert years since I timed one, I seem to remember that you change the timing by changing the point gap. Think you can check the timing with an automotive timing light. Over time, as the rubbing block on the points wears, the gap will close up and the timing will be retarded more. There is no advance mechanism on the CT 70. Wish they did have one. If your question is about how to GET an advance on the timing, maybe look at the modern Chinese renditions of the 70. They use electronic ignition, a 12v system, and they *may* have incorporated a timing curve in the electronic ignition module. Many motorcycles do. To go this route would mean a new flywheel (IF it will fit the old crank) and all the stock parts from a new machine, ie the regulator/rectifier, the ignition module, a 12v battery, new 12v bulbs in the lights everywhere. Sounds like a big deal, but you can get a Chinese engine with all of this stuff really pretty cheap compared to Honda prices. If your engine is tired, at least look at this route before spending the big bucks on Honda parts. But Honda parts I would say are higher quality, plus it will maintain the resale value of your ride. GeoB