Spark Plug Picture
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Senior User
Joined: Apr 2005
Posts: 213
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From: Port Coquitlam, BC Canada
Spark Plug Picture
So decided to check a plug from my engine, appears to be burning well, don't know how many miles on this one, as it was put in before I got the vehicle.
What do you think?
What do you think?
More Turbo
Joined: Nov 2003
Posts: 747
Likes: 26
Spark plug reading can be a little tough nowadays because todays gas burns so clean
Spark Plug Reading 101 by Mike Canter
Spark Plug Reading 101 by Mike Canter
Certified Thread Hijacker
Joined: Aug 2001
Posts: 14,441
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The above photos are perfect jetting and timing. Notice the coloring on the porcelin which is jetting and the coloring on the side electrode which is timing.
You could use 1-2 more degrees timing and jet up 2 sizes
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