craftsman trimmer rocker adjustment

[natedawgk1972]

i bought a craftsman 30cc 4 stroke trimmer today. Manual states that you must check rocker tolerance after 10 hours. I can't find the spec or procedure anywhere on net. its model 316731970 and from what I can see it's an MTD engine that is used in many trimmers. spec would be great - procedure would be better

 

[ILENGINE]

.003-.006 at TDC compression for both valves

 

[natedawgk1972]

thanks much