The choke is part of normal winter operation on anything carbureted. Expect to need it fully closed to start, fully on to maintain an idle right after starting, and don't be surprised to need it still fully or partially on for the first 5-10 minutes of the ride. You can start to bleed it off as the engine warms up. Within 15 minutes of riding even in <5C temps you should be able to have it mostly or completely off.
This is completely normal. Again, if it won't start in the cold but starts normally in warmer weather, check the choke linkage to start, and if it aint craking like the wind, put a set of booster cables on it from your car and try again.
This is completely normal. Again, if it won't start in the cold but starts normally in warmer weather, check the choke linkage to start, and if it aint craking like the wind, put a set of booster cables on it from your car and try again.