Filed Under (Triumph) by admin on 27-10-2010

1. Remove the petrol tank (and seat if necessary) to gain access to the ignition coil, condensor and wiring. 2. For safety, disconnect the battery, if fitted (preferably both terminals). 3. Remove the spark plug. 4. Remove the alternator rotor cover (if fitted). 5. Loosen the auto-advance centre bolt. Rotate the engine to the correct full advance timing position for your machine (see table on page 6), using one of these methods: • Models from 1967 on: use the marks provided for strobe timing on the rotor & chaincase (inside the rotor cover). Unless these marks are known to be accurate it is recommended that they are checked for correct alignment. These marks should line up at the full advance position, check using one of the methods below and, if necessary, re-mark the rotor. • Models from 1969 on: use the timing plug on the left-hand crankcase • Use a degree disc on the crankshaft / camshaft (see table on page 6) • Use a dial guage down the spark plug hole (see table on page 6) 5. Remove kickstart, gear lever and outer timing cover. 6. Remove the contact-breaker plate and lead from the outer timing cover. 7. Taking the ignition trigger assembly, insert a small cable tie into the two holes in front of the connector block on the ignition trigger. This will be used later to secure the two wires to the plate. 8. Fit the ignition trigger plate with the adjustable slots at approx. 6 & 12 o’clock, using the original pillar fixings & washers, positioned in the centre of the slots (to allow for adjustment in either direction). Handle the trigger with care. • RED EARTHING WIRE • CRIMP CONNECTORS & INSULATORS • LARGE & SMALL CABLE TIES • CABLE TIE ADHESIVE MOUNTING BASE 3
9. Remove the centre bolt securing the auto-advance unit. Remove the complete auto-advance unit with an extractor bolt or by tapping it gently sideways. 10. Fit the magnetic rotor in place of the auto-advance unit, with the magnets/ red marks positioned at approx. 3 & 9 o’clock. The magnetic rotor has a male taper which fits into the taper in the end of the camshaft. There is no keyway, allowing it to be fitted in any desired position. 11. Using the ¼” washer and the appropriate bolt (UNF or BSF), pass the bolt through the centre of the magnetic rotor and into the thread in the camshaft. Finger tighten only at this stage. The magnetic rotor centre thread (metric M8) is provided for attaching a puller, if the rotor should need to be removed for engine servicing, etc. 12. Replace the outer timing cover, gear lever & kickstart. 13. Check that the engine is still at the correct full advance position, then adjust the magnetic rotor position so that one of the red marks is centrally behind the static timing hole at 9 o’clock (see fig. 4, page 7). If your machine’s camshaft rotates clockwise, refer to fig. 3. Gently tap the rotor into the taper & tighten the centre bolt, using a 3/16″ allen key. WIRING: 14. All connections must be of the highest quality, use crimped or soldered connections; twisted wires will not give a satisfactory operation. Avoid coiling up surplus lead.