There is a small cover on engine case machine right hand side looks like a large, straight slot screw head. That is the timing mark access. Under that when removed you will see a "T" when the spark is to fire. This coupled with valve timing is important for engine to operate. Remove valve cover, remove timing mark access cover (just described), rotate engine until "T" shows in window hole, check if both vaves are closed (both rockers up) with proper clearance (.1 mm/.004 "). Rotate engine one more turn if not. Set valve clearance if not. Note the indicators on the cam sprocket: one hole or circle on sprocket should be up and centered, two other holes or holes with pins in them should be parallel with top of valve cover mating surface on head when "T" is in window. Timing chain has jumped if not. Post results when through.
Karl
