Only year old Honda push mower won't pull start without starter fluid...

[Lawnman23]

My favorite system for a small engine is still just a simple primer bulb. 3 pushes of the primer button and then pull the cord, doesn't get any simpler than that.

I picked up a 21" Yard Machines mower with a 140cc Powermore engine free on the side of the road. Great condition, main jet plugged solid, easy fix.

No choke, no throttle control, just a primer bulb. One press of that and it starts every time on one pull. Stupidly simple and effective system.