OutdoorKing Repair Forum Forums Repairs and Maintenance Questions On Ride On Mowers Questions on Greenfield Ride On Mower Frames Greenfield MkII Evolution Ride-on - Wiring

For anyone contemplating this conversion, it is not that simple.

I have just successfully installed a Honda GXV390 into an Evolution Mk2A.
Would I do it again? Probably not, due to the modifications required.

Re: Exhaust.
The motor has to go "sideways".
The exhaust on my Honda motor model couldn't be reversed.
It has two mounting bolts, and I spent days welding a custom exhaust manifold out of steel water pipe. It needed to be low enough to go under the motor fins, exiting the frame in front of the foot pedal.

Notes on wiring to follow.

Notes on Wiring:

I bypassed the separate solenoid for the original B & S motor, and used the Honda solenoid on the starter motor.

When looking at the very useful diagrams that Mark has posted, distinguish between the Ignition Coil (connects to the spark plug) and the other "Coil" which is the separate Charging Coil (i.e. the Magneto).

In order to stop the motor from the key switch, rather than the throttle control, I "killed" the ignition coil (rather than kill the charging coil/magneto). This is what the throttle-controlled Stop Switch does also.

Assuming you have the same key switch - test your own terminals for continuity first, or risk a melt down!
A test probe on my key switch terminals show that there is continuity between the G (ground/black wire) and the M (magneto/blue wire on my original B&S) when the key is in the off position.
So the M terminal is the one to kill the ignition, and is also what kills the ignition when the seat switch (blue wire) is not engaged.

NOTE: although the terminal is marked M, ensure that you connect to the Ignition Coil, NOT the Magneto(Charging Coil)