Distributor: Service and Repair

INSTALLATION OF IIA





1. SET NO.1 CYLINDER TO TDC/COMPRESSION
Set to TDC/compression in the following manner.
(a) Remove the No.1 spark plug.
(b) Place your finger over the hole of the No. Si spark plug and rotate the crankshaft clockwise to TDC. If you feel pressure on your finger, this is TDC/compression of the No.1 cylinder. If not, repeat the process.
(c) Install the No.1 spark plug.


2. INSTALL IIA
(a) Coat the spiral gear and governor shaft tip with engine oil.





(b) Align the protrusion on the housing with the pin of the spiral gear drill mark side.
(c) Insert the IIA, aligning the center of the flange with that of the bolt hole on the cylinder head.
(d) Lightly tighten the hold-down bolt.

3. INSTALL HIGH-TENSION CORDS
Firing order: 1-3-4-2
4. CONNECT HOSES TO VACUUM ADVANCER
5. CONNECT IIA WIRE CONNECTOR
6. CONNECT CABLE TO NEGATIVE TERMINAL OF BATTERY
7. START ENGINE
8. CONNECT ENGINE TACHOMETER





Remove the rubber cap and connect the test probe of a tester to the service connecter of the IIA.

CAUTION:
- NEVER allow the ignition coil terminals to touch ground as it could result in damage to the igniter and/or ignition coil.
- As some tachometers are not compatible with this ignition system, we recommend that you confirm the compatibility of your unit before using.

9. ADJUST IGNITION TIMING





(a) Disconnect the hose from the vacuum advancer sub- diaphragm and plug the hose ends.





(b) Using a timing light, slowly turn the IIA until the timing mark on the crankshaft pulley is aligned with the 5° mark.
Tighten the IIA mount bolt and recheck the ignition timing.
Torque: 13 Nm (9 ft.lbs.)

Ignition timing: 5°BTDC @ Max. 950 rpm





(c) Reconnect the hose to the vacuum advancer sub-diaphragm.
(d) Check that the ignition timing advances.

Ignition timing: Approx. 13°BTDC @ Max. 950 rpm

10. ADJUST IDLE SPEED