I will be teaching the 12 year old grandson to maintain this magneto on a 59 model 5.5 HP.----I was repairing these magnetos at a shop when I was 18 years old.----So in my opinion it is not difficult.-----Visit ----leroysramblings----- to learn everything about these simple motors !!
What does " dependable " mean to you?-----I believe the 72 model has 2 ( two ) ignition systems.----If one fails the motor will still run on 1 cylinder to get you home.-----But you have to know / want to learn how to maintain that simple magneto.-----Or if you know nothing than get the 89 model...
A 2 or 3 cylinder motor?----Model # ?----Fuel pump diaphragm checked ?----Checked flywheel key ?-----Spark jumps a gap of 3/8" on both leads ?-----Water pump impeller replaced ?-----Compression test results are ?
I agree.-----Older technology is easier on the budget for at home repairs.---But for a shop / factory this modern stuff makes for plug and play profit.
If you can not adjust idle stop screw to slow it down then check flywheel key.-----And with those compression numbers I would take the head off to inspect cylinders.----And does tell tale hose come off a fitting on the side of the block or the top ?
It is all simple to me after many year of observation.-----Also understand that there are novices out there.----Many folks have suddenly developed a need to go boating.-----Something to do with Covid 19 apparently.