Hi Norm,
I'm a bit puzzled, you say that the Horizontal shaft engine is on a "Honda",
if I may ask what Honda Lawnmower uses a Horizontal Shaft Power Plant ?, as I've always known Honda lawnmowers to use GXV engines (vertical Shaft) as they are all slashers and not GX (Horizontal Shaft).
I really need to change my meds if I've lost the plot on this.
Cheers,
BB.