I'm trying to get this air cooled outboard running for a friend. The carb was pretty gunked up with green varnish. I've had it soaking in seafoam overnite. The question I have is: this carb has no throttle plate, only a choke which is located between the venturi and the reed valve. The twist grip on the tiller is connected to linkage that appears to rotate the mag under the flywheel to vary the timing for speed control. Am I correct in this assumption? I've never seen a setup like this. My old Evinrude changes the timing in conjunction with moving the throttle plate. I've cleaned everything possible in the carb with my blowgun and torch tip cleaner and the only way it will start and run is if I spray gas in the carb throat then it starts and runs until that is used up. It has a gas tank mounted on it that gravity feeds the carb but one sticker mentions using a remote tank but I see no evidence of there ever being a pulse fuel pump for the remote tank connection. The carb is a bowl type like seen on 1,000's of Tecumseh 2 strokes so no internal pump in it. I'll clean and reassemble the carb this morning and try it again. Any tips on this will be appreciated!!