M_Boats: Seafoaming at the mouth!

Well, i put some Seafoam in the gas tank and couldn't get the engine to turn over. I inspected the plug and (mind you i am no mechanic) it looked a bit oily for such a new engine... i have probably less than 10 hours on it in a years time... the plug was not crusty or anything, just dark... i emory clothed it clean at the tip and reinstalled it. It seems to me that if i could get it to turn over just a bit it would limp along until the Seafoam started working. What would happen if i put some gas in the spark plug "hole" (told ya i was no mechanic)? Any suggestions?