This is Totally Uncalled For - Spark Plugs at 12,000 Miles ??

[Scubatech]

Just changed my spark plugs after only 11,350 miles on them (done in just under a year). Curious why the metal shells came out looking like this? I’ve changed plugs before and they often look like #3. Not sure what I did wrong, if anything, so the metal shells ended up looking corroded like #1, #2, or rusted like #4.. Any insights appreciated! BTW, bike ran great, was just sticking to the maintenance schedule.

That's just Oxidation from humidity & salty air. Fortunately here in Colorado our plugs and other Aluminum parts look like new. I run bare Aluminum bumpers on my Jeep with just detailer on the a couple times a year and they look brand new.

 

[Pterodactyl]

Just changed my spark plugs after only 11,350 miles on them (done in just under a year). Curious why the metal shells came out looking like this? I’ve changed plugs before and they often look like #3. Not sure what I did wrong, if anything, so the metal shells ended up looking corroded like #1, #2, or rusted like #4.. Any insights appreciated! BTW, bike ran great, was just sticking to the maintenance schedule.

Water got into the plug well. If you look closely at the stick coils you may see corrosion on them as well as a water line. Try putting silicon grease around the sealing surface of the stick coils.

 

[BaldKnob]

Over the 27K these plugs saw, there were several big rain storms I rode through but I've never splashed through a creek or anything.

Never splashed through a creek? You should try it sometime, it's really quite breath taking. And my plugs have looked fine at each inspection (with a valve check) and no corrosion on the plugs. Probably because I usually don't wash it and it doesn't see a lot of rain. It will cross a creek.

 

[Checkswrecks]

Water got into the plug well. If you look closely at the stick coils you may see corrosion on them as well as a water line. Try putting silicon grease around the sealing surface of the stick coils.

::026::

 

[Jono49]

+1 ::008::