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Double-check that the marks and the flywheel and stator line-up when the
flywheel is in the correct position. Assuming the rest of the engine is complete,
you’re now in a position to test-run the engine and then the timing can be double-
checked using a strobe/timing light.The flywheel needs to then be refitted onto the crankshaft, making sure the
woodruff key is properly located; then fit the washer and nut and tighten to
50lb-ft. Again, you’ll need to use a suitable flywheel holding tool to do it properly.
Don’t be tempted to jam a screwdriver in the fins... it will only end in tears!Once you’re happy that the stator plate is in the correct position, re-tighten the
fixings to fully secure the plate (3.5-4 lbf.ft); failure to do this properly will allow
it to move whilst the engine is used.With the flywheel removed you’ll see the three fixings that hold the stator plate
to the housing; slacken these off slightly and turn the stator plate in the required
direction. This is a trial-and-error process and may need doing several times.With the nut and washer removed you then need to fit a flywheel puller tool; you can
get these along with the holding tool from most scooter specialists. Use the holding
tool again and tighten the puller until the flywheel frees itself from the spindle.To adjust the stator plate, the flywheel will need to be removed and for this you’ll
need a suitable holding tool. Remember the flywheel nut is a left-hand thread, so
goes the opposite way to a normal thread to undo it!With the flywheel at your desired position you can check the ignition timing is set
correctly by looking at the marks on the flywheel window and the pickup box on
the stator. These marks should line-up, but as you can see here they’re slightly
out, so the stator will need to be moved accordingly.Hold the flywheel at the TDC position, then press the on/off button twice to reset
to zero, then rotate the flywheel anti-clockwise to the desired firing position for
your ignition – in our case 19° BTDC (before top dead centre).11
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