How do you adjust the valves on ATV 1995 300 Honda 4 wheeler?

First, make sure the piston is in top dead center position on the compression stroke. There are two inspection holes to the left of the motor that you should remove. Through the bigger hole you can turn the crank and through the smaller hole you can see the outside of the stator with two marks, T and F. Crank the engine until the T mark is on the line. You can easily adjst the valves with a wrench when the engine is in this position and when it is cold. You will need a feeler gauge. The gap should be .004 for the intake valve and .005 for the exhaust valve. You slide the feeler gauge between the rocker arm and valve. There should be some resistance when you do this but not much.