Loose spark plug= blown head gasket?

my son change his spark plug and didnt get it tight enough,now the head gasket is leaking , fresh rebuild 2 days old, loose plug cause this? plug was finger tight and blowing splooge out the plug hole

can't see why that should caused the leaking head gasket..

sure the grooves for the head gasket were clean?

did use a new gasket i hope?

i did the same thing when i put a new plug in, just clean it up, tighten down the plug and go.

i have had my plug fall out of my bike while riding more then 5 times. (due to low octane fuel). and never had a problem with the head gasket well The orings.

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