Rocker arm shaft O-ring replacement ATC250sx/es??

[aldochina]

my SX is weeping oil from one of the shaft seals. Looks like it may require head disassembly to change. Any way to change it just removing rocker cover?

[Dirtcrasher]

If thats one of the rocker arm pivot shafts that un-threads, put the motor at TDC on the compression stroke where there is some play in the rockers and you can replace it. I'd probably follow it a bit with a long pick if I could but I bet it won't move much.....

[jays375]

Put a little oil on them.Be carefull when reinstalling.Might not hurt to purchase a extra one.Just in case you have trouble installing them.