Are there timing marks on my honda 20hp engine need help.

there probobly is, never worked on a honda. Just look real close. Have you taken it apart before?

Yes there are timing marks on your Honda motor--lookin at the face of the motor look at the cooling fan(big white thing) There will a solid line and a"T" line that up on the mark on the outside cover of the motor(red housing)There will be another line on the outside. If your are setting valve clearance cold remember it has to be on the commpression stroke. .006 intake .008 exhaust. Hope this helps