How often should I be changing spark plugs?

oh, that looks bad and rusty, but don't look so bad at the electrode, you have a close up of that part?

Sorry the camera batteries just died ..:thumbsup:

The electrode isn't that bad I just found it ironic this thread had just came up.

Cheers, Jetfuel

I used to put an iridium in once a year, if it needed it or not.

If your jetting is right your plug will last forever.

I've noticed that if I put a new one in every 40 to 50 hours, it seems to run somewhat smoother. The plug looks used, but not abused. Always puzzled me, but figured what the heck.

I did some jetting a while back. Maybe I don't need to change it as often

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