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

Hi rennkadett ,

The green wire is from here...
http://www.geartronics.co.uk/files/gcu1-pinout-description.pdf

As far as I know there is no "ignition cut" wire on the MicroSquirt module, but you can interrupt the triggering system or the ignition coils quite easily.
On a motorcycle, I've dumped the ...

I use an Opel/Vauxhall or GM Hall sensor, that has more than one sensor in a discrete package. To reduce errors it uses two sensors and the leading and trailing edges of the wheel, so the tooth gap to toothed area isn't a 50% metal 50% air relationship.

It's not applicable to VR sensors, as you ...

Hi turbo-max
It seems that the fault is elsewhere if other wheels don't work. I like to aim for a 50% on-off tooth pattern, that way it provides a consistent signal no matter what RPMs.
Do you have the use of an oscilloscope?
Any pictures of your install?
You could always mount the wheel in a ...

Hi turbo-max
I can't see why not, it's divisible by two, so if mounted on a crankshaft on a 4 cylinder, you'd be looking at a wasted spark every 180º.
I use an 18-1 on my Panhard engines now.
Mike

Hi

As dontz125 says, which Yamaha is it? If it's an early FZ700, 750, FZ1000 or YZF1000 Thunderace, then you are in luck using the stock set up, as there is some code on the other forum. I know, because I got it working successfully.

I do know of another unit that will work with anything, but it ...

Hi

The single crank pick up uses a long tooth trigger on the flywheel/stator. People have successfully fitted other wheels to the early engine, and that has been made to work using MSExtra. Your first obstacle is to modify the VR circuit to get an acceptable signal that the MicroSquirt can use, and ...

Could this cause the engine not to rev out?

Hi again, sorry you're having hassle, and as Matt says your dwell is going negative... most odd. Also you're getting frustrated, because that throttle is virtually wide open during that datalog! :) Also PW is flat ?? and PW2 is a big spike... something ...

Hi

It's best to use head temperature, as oil temperature doesn't follow head temperature very well. Air cooled engines can warm up quite quick, and my air cooled Panhard engines, actually run cooler at certain revs, because of the airflow characteristics over the oil sump.

I made an adapter, that ...

Hi Walt,
Yep, your bike spins at a high RPM, but without understanding the code, AFAIR cranking is set by the limit in your MSQ, once you exceed this and the MicroSquirt is seeing regular tach, that's synched, you get a running status. As you've set the cranking RPM to 1200, it should be in a run ...

Hi again,

The MAP sensor is not used in cranking detection! :)

Your problem will be the VR sensor on the KTM and the "long tooth", which is much wider than the sensor affecting the zero crossing point.
Go back to basics, or use something else as a trigger. I ripped out the wiring loom on a CDI CCM ...