2001 CRV will not start below 25 degrees

2001 CRV will not start below 25 degrees Runs excellent once it starts and reves up. New plugs, wires, new distributor, new timing belt, coolant sensor and main relay in last year trying to solve the problem by a few different mechanics who apparently tried but failed. When starting in cold weather sounds like it is running on 2 cylinders until it reves up if Im lucky and over 25 to 30 degrees. Above that no problem ever.