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I don't know what the average life span of standard spark plugs are but they are a 24,000 mile replacement item according to BMW Motorrad's Maintenance Schedule for 2005-2009 R1200GS.
Older bikes didn't have Iridium and lasted twice as long as now? Never would have guessed that.
Reese, to test my 50/50 90 rule the second one from the top is the left?
Coils come out easily using a couple flat blade screwdrivers. Add a little tape to prevent scratching the paint.
Yes they should. The theory is the same using the tool, pulling on the outer ridge of plastic on the coil. I don't know why mine broke off using the tool? I imagine they would have broke using screwdrivers also.
Wow, the wear doesn't look like 40,000 mile plugs. Something though looks off about the top 2 though.
If the tool is not fitted all the way onto the coil - slid all the way toward the front - it's a cinch to damage the coil like that.Coils come out easily using a couple flat blade screwdrivers. Add a little tape to prevent scratching the paint.
Yes they should. The theory is the same using the tool, pulling on the outer ridge of plastic on the coil. I don't know why mine broke off using the tool? I imagine they would have broke using screwdrivers also.
This is what my coils look like, not sure why the plastic just broke off so easy? At first I thought it was the heat here in Phoenix which makes plastic things brittle but the heat from the engine should be a lot worse?
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