Man, I'd still be scared to fire up a motor with a paper towel in the intake. Paper does not burn clean like gas does, so there would be soot and lots of carbon left behind to muck up the pistons, cylinders, valves, rockers, etc. etc. etc.
Glad to hear it worked out for you, but I probably would have advised more caution and say tear the intakes off at least to pull as much out as you can.
(headlight fluid, hehe. I forgot that I need to bleed mine after the last strut rotation!! you all do rotate your struts right?)