MicroSquirt.com read only forum (Jan.15,2018)

Thanks Mike, I'll try that with this system. Seems like 50 RPM's shouldn't be too hard to reach, then set the uS to initiate with as few 'pulses' as possible...

Thanks,
Bill C.

So I should use an oscilloscope on the switched ground wire to test for a sine wave and what the voltage is? I should expect the voltage increases with engine rotational velocity correct?

Yes and Yes, the voltage will be increase with speed of the flywheel magnet.

The tickler coil may be your ...

You may need to use an oscilloscope to see if that grounding wire is the 'hot' end of the first or primary mag coil winding. Most of these magneto coils are basic transformers with a primary and secondary winding but there are a number of different magneto configurations, some which use a set of ...

We have found another electric start system design and will pursue that before the fuel injection....for a couple of good reasons - one is that it is NOT $2000! We just ordered a new frame for this 1956 model FLH (shovel on a PH gen bottom) so some time will pass before work actually commences on ...

Andy,
50 RPMs for a kick is, as you say, above 50 RPMs but I'm concerned about whether it needs to be a sustained >50 RPMs to begin metering fuel (even if setting 2 or even 1 input pulses), as if a loaded map in the uS could sustain such a low speed....???? Will the engine actually recover from ...

I may still attempt this...as you say 24c; start it with a 'prime' squirt of fuel and with conventional ignition, then switch to port injection and MS ignition on that burst start - could work. Delay activation of a 'delay relay' with the first point closing to switch out/in the MS....would need a ...

The old Harleys use a wasted spark point ignition system (that contributes to that exhaust sound) so, I'm wondering if the entire fuel/ignition could be configured as a two cycle engine? Fuel would be delivered against a closed intake valve on one stroke, then 45 degrees later onto the other intake ...

I don't believe it is even possible to kick a Harley hard enough to get 50 RPM's and even then, the tach signal would rise rapidly, then fall to zero. I understand the reasoning for the 50 RPM lower RPM limit but it certainly eliminates the possibility of utilizing MicroSquirt in this instance ...

The only real question that I have that has not been addressed in these texts on MicroSquirt is in regards to a kick start motorcycle (or I misunderstood...). I have a 1956 Harley Davidson that is a prime target for fuel injection but I do not desire to modify it to the extent of an electric start ...