no start

OP, did you dump out all of the old fuel from the tank or just add new fuel? If not, then who knows how bad and old that old fuel is. Drop the tank and clean it out. Old fuel will just make cold running worse or impossible. And these old tanks will contain lots of rust and crud. The filter may not stop it all, and your idle circuits in the carb may now be plugged up with crap.

Sounds like it ran at high idle but not at normal idle? Is that correct? If so, then try to get it running again at high idle and let it run that way 3 minutes or so 'til it warms up a bit and see if you can back it down gradually to a lower idle. This is an old carbed engine, and you have to get the choke set up right before it will start and run on it's own. Your pumping of the pedal before starting is doing what the choke does to get extra fuel in the carb in cold starting. With the cohoke not set right, you can usually make them run OK cold by conticually pumping the pedal when cold and gradually doing that lass and less as the engine warms up.

The plugs being wet depends on how much you pumped. So it is hard for us to say on this side of the computer screen.

BTW, I know where Harmony is..... we bought snowmobiles down at Moody in Mars.