Just squirt some WD40 on a clean shop rag and wipe the adhesive off with that. WD40 is VERY friendly to rubber and plastic parts, you have nothing to worry about, I wouldn't bother soaking the part.
Using liquid electrical tape I'd be very careful to be sure the stuff is well cured before you run the engine, the suction through the carb boot may be strong enough to suck some of it into your engine.....and that would probably be a bad thing, right?
-Alan