Sorry for being a brand new newbe to gas lawn mower. Should have borrowed student loan gone university for this. Few years back my in-law gave me his used Craftsman 5.5 hp 917.387151 mower. Looked fairly new.I was still using my electric one in the meantime so his Craftsman sit in the garage for some years.Last week I rolled out the Craftsman filled motor oil and fuel. Cleaned up the machine making sure it's shinny ready to go. This morning I pressed the primer 5 times.Pulled the string.Nothing happened. No sound no nothing. Great! Oh,I see,I didn't plug in the spark plug wire. Meanwhile I see fuel start leaking from the air filter. Removed the air filter I see fuel pouring out from the opening. After a frantic messy rescue operation,I am now sitting here wondering what had happened to the motor.It might have something to do with the carburetor. I would appreciate any help or ideas from members of this forum.Thanks in advance.