Intermittent cold-start problem on original Jabiru 3300A Gen2 – looking for anyone who has experienced the same symptoms.

[IBob]

9 hours ago, kgwilson said:

Setting the coil gaps is easy. The recommended procedure is to loosen the bolts, pull the coil away from the flywheel & tighten, insert the correct feeler gauge, loosen the bolts & let the coil clamp down on the feeler gauge, tighten the bolts & pull the gauge out. If you can't budge it loosen the bolts a bit & wiggle it out, tighten & recheck the gap. It doesn't matter if the gauge is magnetic or not.

That's fine for setting, KG.
My point was it's hard to check the gap with a regular steel gauge, as it sticks to the magnet and feels like a snug fit regardless.

[facthunter]

If contact does occur it will reduce the Magnetism in the Magnets because of the Impacts. Many magnetos have to be remagnetised.  Permanent magnets need a "Keeper" if they are  to retain anything like full magnetic "Saturation".  Nev