I have a 94 Honda accord. How do I check the space between the vavles and how do I adjust it?

 

You mean check & adjust the valve clearance?

Each valve rocker (#1, 2, 3) has an adjusting screw (#9) & locknut (#15).


You should get a shop manual for a proper procedure. Maybe there's a summary in the DIY section here, but you can do the searching...

Cliff notes...

First turn the crankshaft (forward only) until each cylinder in turn comes to top of it's compression stroke. Measurement is only valid at that position.

You measure with a feeler gauge underneath #9 where it pushes against the top of the valve. Measure when it's at room temperature because Honda publishes the clearance at room temperature. The proper clearance is probably listed on a sticker on the underside of the hood.