Xj650 head gasket repair

I own a 1982 Yamaha xj650 just blew head gasket cause somebody decided to overfill my oil and I have no idea what I'm doing so I desperately need help

 

How did you diagnose a blown head gasket? Drain oil , refill and then check for leaks a compression test would tell you more about condition of the head gasket.

 

Most head gasket leaks turn out to be valve cover gasket leaks.

Do as Jetfixer recommends.

 

Also, are you sure it was oil and not full of fuel from a leaking petcock/float valves? I assuming oil change and got carried away refilling but thought I'd ask

 

It's leaking oil right at the head gasket line even after checking compression washing bike thoroughly it's still a very small leak my oil level hasn't gone down by much but it is definitely fresh oil on the front left side of my engine I have a gasket kit but kinda nervous messing around with the valves

 

could be that your speedo cable is leaking at the head,


EDIT I mean Tach cable at thead

 

How do I check that cause my speedo isn't working so idk what's up with it I just cleaned my carbs yesterday

 

My speedometer has never worked since I got the bike do you mean the tachometer or rpm gauge that might be leaking cause I believe my speedometer is connected to my front wheel and the tachometer went on the very front casing or my engine to register the transmission and rpms of motor

 

sorry I mean the tach cable

could be valve cover leaking into spark plug area and coming out drains any oil around spark plugs.
it does look like your head gasket

 

right now stop whatever your doing and get some kroil or 50/50 acetone/atf on those exhaust flange studs. do that every day for a week before you touch then with a wrench.
they look like trouble to me

 

The exhaust came off easy