9. If any readings are not within these tolerances, remove the flywheel and stator.  Check the stator wires for breaks or insulation cracks.  Check the stator mounting for proper ground to the engine case.  If no damage is apparent, replace the magneto assembly. 

10. Check the flywheel magnets by laying a screwdriver across each one and then lifting it off.  On Pioneer and Plonker models, all six magnets should be equally strong.  On Stiletto, TT and DMR models, five should be equally strong and one considerably stronger.  If the flywheel fails this test, replace magneto assembly.

11. If the spark is still weak, replace the coil and then the magneto, to see where the fault lies. 

12. If the ignition is erratic and spark plug readings are not consistent, the magneto may be producing its spark at the wrong time, even though properly timed with the timing pin and dial indicator.  Check it with a timing light. 

13. Set the timing with the timing pin as detailed in Chapter Three.  Make a line on the flywheel and engine case (see Figure 4) before removing the timing pin.