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How to Time a Four Stroke

Its not difficult to time a four-stroke. Youll need to make a habit out of checking the ignition timing mechanism. This is a vital part of figuring out the present state of your engine. To begin a four-stroke engine timing check, all thats required is access to a single spark plug.

Instructions

1

Locate the magneto. The magneto is the section where each plug wire converges. Select the closest cylinder to you. Assign that particular cylinder as the main cylinder. Locate the center of the compression stroke. Take off the spark plug and remove it from the cylinder.

2

Put a finger on the spark plug hole. Use the wrench against the crank bolt. Now turn the wrench clockwise. Take the pencil and place it into the hole. Push it forward until the tip of it reaches the top of the piston. Move the crank forward and backwards to locate the highest point of the piston. The cylinder will be dead center. Switch out the wire and spark plug.

3

Locate the erence mark on the crankshaft pulley. Place marking tape on the crankshaft pulley. Clamp down on the spark plug wires inductive pickup. Make certain that it goes to the main cylinder. Clip down on the positive battery terminals red wire. The negative battery terminal should be place on the black wire.

4

Turn on the engine. The timing light should now be pointed at the crank pulley. Do this while the engine idles. Shut off the engine. Put another mark onto the pulley. This mark should correspond with the second mark. Start the engine again.

5

Confirm that the second pulley marking tape section aligns with the marking tape lines on the engines block. Shut the engine off. Detach the vehicles timing light. The degree wheel should now be placed on the crank pulley.