Re: Head gasket install
No sealant, I am not sure exactly what the specs are on the 120, but I do know that there is a specific pattern you must follow when tightening any head bolts. 270 inch lbs is standard for my 50hp, 55hp's, 70hp, 85hp, etc.. I just dont have the manul covering the 120 so take this with caution, and maybe someone who has a manual will chime in confirming.