Re: carb slide sticking?
Please do not sand on the slide. It is a precision fit in the carb and scratches left by sandpaper will not help you.
Did you disconnect the throttle cable from the slide? The binding might be in the cable or the twist grip instead of the carburetor. Track down the source of the binding but don't sand or grind on the slide (barrel) of the carb. Check for kinks in the throttle cable or extreme bends. Make sure the twist grip is working correctly.
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