Sprocket's Valve Adjustment By idnative1948 (Read 1,257 times)

[sprocket]

I don't like using the TDC method, especially on an older engine...where there is cam chain stretch, worn cams and cam sprocket etc...use the alternate valve method...

I use the Roll Over Method...

1. Remove the spark plug or back it off so it leaks compression
2. Remove the valve cover
3. Using the cooling fan with a wrench or turn with your hand, rotate the engine CLOCKWISE
4. Watch the valves.
5. When the INTAKE valve, the top one, is all the way open (the rocker arm is pressed all the way down) stop rotating the engine
6. Loosen the locking nut (9mm) on the EXHAUST valve, the bottom one, and using a feeler gauge with oil on it, turn the adjuster screw until it is .005 inch...
7. Tighten the locking nut and re-check the gap to .005"

Then

8. Rotate the engine again, CLOCKWISE until the EXHAUST valve is fully open (the rocker arm is pressed all the way down)
9. Now adjust the INTAKE valve, the top one, and set it to .004 inch
10. Tighten the locking nut and re-check the gap to .004"
11. Replace the valve cover
12. Screw in the plug, replace the plug boot and start up the engine...

Give it a try...