Topic: engine teardown pics and questions

[the technological J]

so after much curiousity about my73k parts bike and many questions.... i tore into her tonight finally got down to the pistons to measure em and........ 61mm!!!! yeaaay stock...     i was hoping i would find some 64s in there but oh well they looked like someone spent a week cooking burgers on em.... it reminded me of grill crust.... so here lies a couple questions..... the pistons said...(had written on them.. they dont talk) 300 12 on two of them and 300 10 and 300 7.... whats the difference between these?  will any burn marks indicate a bad set of rings or is it normal tarnish... i think the oil has been in there for 7 or 8 years or so.......

[the technological J]

oh yeah... on the head gasket is this normal wear or is it blown... i know i need a new one i was just wondering.... u shouldnt reuse them right?

[mick7504]

oh yeah... on the head gasket is this normal wear or is it blown... i know i need a new one i was just wondering.... u shouldnt reuse them right?

u shouldnt reuse them right?
Right 
Check the head with a metal straight edge especially around that combustion chamber area where the gasket is shot.
It's probably a good idea to get it lightly faced if you want to use it as well as considering a valve job.