In Reply to: cold weather posted by David on December 29, 2018 at 13:05:55:
The air fuel mixture in the cylinders is less volatile when it's cold. Increasing the fuel to air ratio compensates for the loss of volatility.
Use more choke.
Each engine is a bit different when it comes to starting. You have to learn what your engine likes as far as how much choke to give it. If it isn't starting or at least firing in a couple revs with full choke give it a couple more revs.
Remember also that your spark must be in tip top shape. Check it with a spark plug tester or an old plug that the gap has been widened to about 1/4". In a no start/ slow start situation never assume your spark is good. Always Verify!