Front Spark plug has half oil on it.
Thread Starter
|
Advanced
Joined: Apr 2011
Posts: 60
Likes: 0
From: Clovis ca.
Front Spark plug has half oil on it.
I changed my plugs at 5000mi and notice the front plug was half tan and half oil. So I installed new plugs. Now after about 1000mi I pulled both plugs to check and the same damn thing on the front 1/2 and 1/2. The rear looks great a nice tan color. I can post some pictures later if needed.
Thanks in advance.
Thanks in advance.
Extreme HDF Member
Joined: Sep 2010
Posts: 14,744
Likes: 402
From: Phoenix '53, '88, '09 Big Twins
sure it is oil ?
then it looks like it needs to come apart.
look for white smoke from the tailpipe, if you are burning oil on deccel that shows that the valve seals are gone
if on accel, it shows that the piston rings are not sealing properly to the cylinder wall.
in either case the fix requires the top end come off
mike
then it looks like it needs to come apart.
look for white smoke from the tailpipe, if you are burning oil on deccel that shows that the valve seals are gone
if on accel, it shows that the piston rings are not sealing properly to the cylinder wall.
in either case the fix requires the top end come off
mike
Thread Starter
|
Advanced
Joined: Apr 2011
Posts: 60
Likes: 0
From: Clovis ca.
sure it is oil ?
then it looks like it needs to come apart.
look for white smoke from the tailpipe, if you are burning oil on deccel that shows that the valve seals are gone
if on accel, it shows that the piston rings are not sealing properly to the cylinder wall.
in either case the fix requires the top end come off
mike
then it looks like it needs to come apart.
look for white smoke from the tailpipe, if you are burning oil on deccel that shows that the valve seals are gone
if on accel, it shows that the piston rings are not sealing properly to the cylinder wall.
in either case the fix requires the top end come off
mike
It looks wet at the one side edge and also on the treads. I do smell a wiff of burnt oil when riding it very hard some times. That could be coming from the stage one A/C. Because I see a small amount of oil in the bottom of filter. Could it be the front breather bolt being slighty plug?
Thanks
Again
Road Master
Joined: Jun 2010
Posts: 1,221
Likes: 4
From: Annemasse (border of Geneva-Switzerland) facing Mt-Blanc.
The color of the spark plug indicates the temperature inside the cylinder. When there are two colors, the darkest is the coldest.
Screw the plug back on and make a felt pen mark on it. When you remove it again you will see from which side the 'cold' comes from.
Screw the plug back on and make a felt pen mark on it. When you remove it again you will see from which side the 'cold' comes from.
Tourer
Joined: May 2010
Posts: 450
Likes: 2
And what exactly is this supposed to show?
Trending Topics
Tourer
Joined: May 2010
Posts: 450
Likes: 2
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Road Master
Joined: Jun 2010
Posts: 1,221
Likes: 4
From: Annemasse (border of Geneva-Switzerland) facing Mt-Blanc.
Consider the ceramic isolator as a self cleaning element that requires a specific time and temperature to burn away it's contaminants.
The line/mark lets you know how the plug is oriented in relation to both valves.
When the mixture of fresh air and fuel enters the chamber, part of the flow hits the spark plug and cools the area of ceramic exposed to the intake port. If there is no gradient of the (light tan) coloration on the electrode this means the average electrode temperature is correct. Traces of oil are diffused in a mist and usually pyrolized by the electrode.
The line/mark lets you know how the plug is oriented in relation to both valves.
When the mixture of fresh air and fuel enters the chamber, part of the flow hits the spark plug and cools the area of ceramic exposed to the intake port. If there is no gradient of the (light tan) coloration on the electrode this means the average electrode temperature is correct. Traces of oil are diffused in a mist and usually pyrolized by the electrode.
Thread Starter
|
Advanced
Joined: Apr 2011
Posts: 60
Likes: 0
From: Clovis ca.
Consider the ceramic isolator as a self cleaning element that requires a specific time and temperature to burn away it's contaminants.
The line/mark lets you know how the plug is oriented in relation to both valves.
When the mixture of fresh air and fuel enters the chamber, part of the flow hits the spark plug and cools the area of ceramic exposed to the intake port. If there is no gradient of the (light tan) coloration on the electrode this means the average electrode temperature is correct. Traces of oil are diffused in a mist and usually pyrolized by the electrode.
The line/mark lets you know how the plug is oriented in relation to both valves.
When the mixture of fresh air and fuel enters the chamber, part of the flow hits the spark plug and cools the area of ceramic exposed to the intake port. If there is no gradient of the (light tan) coloration on the electrode this means the average electrode temperature is correct. Traces of oil are diffused in a mist and usually pyrolized by the electrode.
Thanks Guys