Quote:
Originally Posted by irvingj  It's a way to temporarily (a few seconds at best) bypass the normal fuel delivery system. One "shot" of spray will give the cylinder(s) enough atomized fuel to ignite and for the engine to run briefly.
It's simply a method of determining if the problem is in the fuel delivery system or not. If it fires up after spraying (but not before), it pretty well means the engine's NOT getting any fuel through the normal system. |
Thank you.
Starting engines is probably the only thing WD-40 is good for. It will start the hardest to start lawn mower in one pull. Set throttle to max, remove air cleaner, spray into carb, cover the intake with your hand, or use choke if available, pull the rope.