I have two slants with manual chokes, they work super simple. Install a generic cable to the butterfly, and done. As mentioned above, you do have to feather it off as the engine warms up.
actually mine had 3 settings: off, warm and cold. in that order. Those were just the detents but you could leave it anywhere you wanted. With the electric fuel pump, Keihin slide venturi carb and the So Cal weather, that little air cooled motor (600cc twin) would start immediately but would not idle unless it was choked warm for about 30 seconds. Im sure cold climates would fare worse. My closed air cleaner also had a summer/winter lever that chose a snorkle or exhaust pre-heater duct. I never used it.
