Ignition Timing

Operate engine until cooling fan comes on. Locate connector at right side (under dash). Connect terminals of ignition timing adjusting connector with a jumper wire. See Fig 1 .

Fig 1: Locating Ignition Timing Adjusting Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Connect timing light. With engine at idle, Red mark on crankshaft pulley should align with pointer. See Fig 2 . If Red mark and pointer are not aligned, adjust timing. See IGNITION TIMING table.
Adjust ignition timing by turning adjusting screw on ignition timing adjuster. See Fig 3 . Remove control box cover. Using a 3/16" drill bit, drill out 2 rivets from adjuster and remove cover.

Turn adjusting screw counterclockwise to retard timing, or clockwise to advance timing. After adjustment, install cover to ignition timing adjuster with new rivets. Remove jumper wire from ignition timing adjusting connector.

Fig 2: Locating Ignition Timing Marks

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Fig 3: Adjusting Ignition Timing

Courtesy of AMERICAN HONDA MOTOR CO., INC.

IGNITION TIMING

Application

Degrees BTDC @ RPM

Manual Transmission

13-17@600-700

Automatic Transmission

⁽¹⁾ 13-17@550-650

⁽¹⁾	Automatic transaxle in Neutral.