Motorcycle Repair: valves, compression stroke, yamaha moto

Question
do you know what the valves are to be set at on a 82-86 yamaha moto 4 225

Answer
Jacob,

set them all at .004" inch or .1016 mm.
Make sure the engine is on the compression
stroke. You can feel pressure in the
spark plug hole and then put the piston
up to the top of the cylinder or check for a "T" mark
on the magneto or flywheel.