Originally Posted By: dwendt44
Quote:
a mechanic told me that since it didn't come with iridium plugs that the wiring was not right for using iridium plugs. He said to stay with what the owner's manual said. I didn't know if he was right or wrong.
He was blowing smoke.
I've installed iridium plugs in several engines that called
for plain old copper plugs. No problems. I gap to original specs.
My 2¢
There's a vague possibility the mechanic has a point if the iridium nugget is only on one electrode, and it's the wrong one for the polarity of the magneto. If this is the case, it'd just wear the non-iridium side at the same rate as a copper plug. It may still outlive the rest of the machine.
Quote:
a mechanic told me that since it didn't come with iridium plugs that the wiring was not right for using iridium plugs. He said to stay with what the owner's manual said. I didn't know if he was right or wrong.
He was blowing smoke.
I've installed iridium plugs in several engines that called
for plain old copper plugs. No problems. I gap to original specs.
My 2¢
There's a vague possibility the mechanic has a point if the iridium nugget is only on one electrode, and it's the wrong one for the polarity of the magneto. If this is the case, it'd just wear the non-iridium side at the same rate as a copper plug. It may still outlive the rest of the machine.