I notice that the entire choke is open to the atmosphere on your dellorto . There's an air passage way (on the engine side of the slide ) that allows air into the motor even with the throttle slide closed , would make for poor starting and low speed running .
Wonder if it would start by being fired off with a shot of fuel and a spark like modern cars with auto stop/start do? Mind you a cartridge start (field Marshal) would be cool too.
Both good options. We can certainly get fuel in via the decompressor. I'll see if the ignition can be set to manually fire the coils.. Would be a cool start button. 😊 Cartridge start also being considered, but a few problems associated with that.
Why don't you try to use a hall ignition sensor(three pins active sensor) for your ignition? You should get a good signal from zero rpm. I don't know if your ignition module will support such a sensor, but should be easy enought to find a module that works with a hall sensor instead of a variable reluctance sensor.
@Turnipstalk I am an automotive sparky. Nowadays, hall sensors are quite sturdy and inexpensive. While a coil and interruptor has the advantage of being very simple, a good electronic ignition module coupled with a hall sensor, can be very easy to adjust/ tune and can also be very reliable. Also the spark can be triggered with a simple micro switch connected on the signal output pin of the hall sensor. This can be used for starting the engine by rotating it after TDC, squirting some fuel into the cylinder and triggering the spark.
For what it's worth my vote would be cartridge start cool as and bad ass all in one. Excellent build and top rate engineering 👏 👍
Great build.
something that might be cool and work well is a Air starter
Goot-Zee 🧔👍✌
I notice that the entire choke is open to the atmosphere on your dellorto . There's an air passage way (on the engine side of the slide ) that allows air into the motor even with the throttle slide closed , would make for poor starting and low speed running .
Hmm, cartridge start? 🤔
Wonder if it would start by being fired off with a shot of fuel and a spark like modern cars with auto stop/start do? Mind you a cartridge start (field Marshal) would be cool too.
Both good options. We can certainly get fuel in via the decompressor. I'll see if the ignition can be set to manually fire the coils.. Would be a cool start button. 😊 Cartridge start also being considered, but a few problems associated with that.
Why don't you try to use a hall ignition sensor(three pins active sensor) for your ignition? You should get a good signal from zero rpm. I don't know if your ignition module will support such a sensor, but should be easy enought to find a module that works with a hall sensor instead of a variable reluctance sensor.
Thanks for the suggestion. I'll 'contact' (haha, see what I did there?) Boyer and do some more research.
@Turnipstalk I am an automotive sparky. Nowadays, hall sensors are quite sturdy and inexpensive. While a coil and interruptor has the advantage of being very simple, a good electronic ignition module coupled with a hall sensor, can be very easy to adjust/ tune and can also be very reliable. Also the spark can be triggered with a simple micro switch connected on the signal output pin of the hall sensor. This can be used for starting the engine by rotating it after TDC, squirting some fuel into the cylinder and triggering the spark.
Induction starter from a car will do this job..