Spark plug deposits
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Road Master
Joined: Apr 2007
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From: Lake Jackson, TX
Spark plug deposits
On a whim yesterday I pulled my spark plugs on my '07 DWG with 9000 miles on it. I have Reinhart 2-2 pipes and a S&S teardrop and the dealership download. The bike runs good.
There is a white crusty deposit on the grounding strap and the ceramic is white.
When I bought some new ones the parts counter guy said it could be lean or burning a little oil.
I thought the o2 sensors working with the ECU would fine tune the A/F mixture after the download got it close. If that isn't the case, what are the o2 sensors for?
What does that sound like to you?
There is a white crusty deposit on the grounding strap and the ceramic is white.
When I bought some new ones the parts counter guy said it could be lean or burning a little oil.
I thought the o2 sensors working with the ECU would fine tune the A/F mixture after the download got it close. If that isn't the case, what are the o2 sensors for?
What does that sound like to you?
Seasoned HDF Member
Joined: Mar 2010
Posts: 38,586
Likes: 6,435
From: Honah Lee
On a whim yesterday I pulled my spark plugs on my '07 DWG with 9000 miles on it. I have Reinhart 2-2 pipes and a S&S teardrop and the dealership download. The bike runs good.
There is a white crusty deposit on the grounding strap and the ceramic is white.
What does that sound like to you?
There is a white crusty deposit on the grounding strap and the ceramic is white.
What does that sound like to you?
Last edited by Jackie Paper; Sep 14, 2018 at 10:28 AM.
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