Has anyone had experience with NGK Iridium IX spark plugs?
I have a 2005 K1200 LT and have been using NGK Iridum IX DPR 7EIX-9 spark plugs.
Just wondering how many miles I should be able to run these plugs?
The first 18,000 miles have gone well and they look good now.
If someone has some knowledge, then I can quit checking the plugs and ride for 50,000 miles before changing plugs.
I have a 2005 K1200 LT and have been using NGK Iridum IX DPR 7EIX-9 spark plugs.
Just wondering how many miles I should be able to run these plugs?
The first 18,000 miles have gone well and they look good now.
If someone has some knowledge, then I can quit checking the plugs and ride for 50,000 miles before changing plugs.