When I had two older Suzuki two strokes I found they were bit reluctant to start in cold weather so since then I always carry a can of Auto Start an ether accelerant, which is on the market under other names. All you need to do is to give a squirt in the air intake preferably when to the engine is cranking over, and you will get an instant start.
I have loaned it out many time on the ramp to people having starting problems. Of course as others have said, you have to have the fuel well pumped up and a good battery