Sparkplug is full of deposit
#1
Sparkplug is full of deposit
I am worried, the first sparkplug had huge deposits on the top of the sparkplug around the pin and I could not even remove it with finger....my bob was stalling and stuttering then I replaced it with Original harley sparkplugs and it works now for 1 year with no stalling and stuttering......but I just pullled it out for fun and I saw small layer of deposits again....
only first cylinder has this problem, second one sparkplug is clean...but strange looking too....the pin is all shiny etc....
what can happen here? As I have reaad there is oil coming into cylinder from above the piston rings?
Can my motor get damaged?
Should I go to service immediately or what?
I started to repair everything by myself on my dyna with success but changing piston rings might be difficult....I need some advice, thank you!!!
only first cylinder has this problem, second one sparkplug is clean...but strange looking too....the pin is all shiny etc....
what can happen here? As I have reaad there is oil coming into cylinder from above the piston rings?
Can my motor get damaged?
Should I go to service immediately or what?
I started to repair everything by myself on my dyna with success but changing piston rings might be difficult....I need some advice, thank you!!!
#2
Join Date: Aug 2006
Location: South Central, PA Near the MD Border
Posts: 21,317
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6,898 Posts
#3
2014 street bob
vance and hines short shots
screaming eagle air filter
power commander 5
I called dyna jet and tell them if the power comander is responsible, this is their answer....
That does not look like fuel fouling. You have a massive buildup of carbon and it would take a long time for that to build up from fuel fouling. My guess is you are burning oil in the combustion chamber causing this.
This could indicate failed piston rings but could be a number or things. I would recommend bringing it to a reputable shop to get ac second opinion.
vance and hines short shots
screaming eagle air filter
power commander 5
I called dyna jet and tell them if the power comander is responsible, this is their answer....
That does not look like fuel fouling. You have a massive buildup of carbon and it would take a long time for that to build up from fuel fouling. My guess is you are burning oil in the combustion chamber causing this.
This could indicate failed piston rings but could be a number or things. I would recommend bringing it to a reputable shop to get ac second opinion.
#4
I am worried, the first sparkplug had huge deposits on the top of the sparkplug around the pin and I could not even remove it with finger....my bob was stalling and stuttering then I replaced it with Original harley sparkplugs and it works now for 1 year with no stalling and stuttering......but I just pullled it out for fun and I saw small layer of deposits again....
only first cylinder has this problem, second one sparkplug is clean...but strange looking too....the pin is all shiny etc....
what can happen here? As I have reaad there is oil coming into cylinder from above the piston rings?
Can my motor get damaged?
Should I go to service immediately or what?
I started to repair everything by myself on my dyna with success but changing piston rings might be difficult....I need some advice, thank you!!!
only first cylinder has this problem, second one sparkplug is clean...but strange looking too....the pin is all shiny etc....
what can happen here? As I have reaad there is oil coming into cylinder from above the piston rings?
Can my motor get damaged?
Should I go to service immediately or what?
I started to repair everything by myself on my dyna with success but changing piston rings might be difficult....I need some advice, thank you!!!
Dave
The following users liked this post:
Vec (05-27-2022)
#5
Join Date: Aug 2006
Location: South Central, PA Near the MD Border
Posts: 21,317
Received 19,546 Likes
on
6,898 Posts
2014 street bob
vance and hines short shots
screaming eagle air filter
power commander 5
I called dyna jet and tell them if the power comander is responsible, this is their answer....
That does not look like fuel fouling. You have a massive buildup of carbon and it would take a long time for that to build up from fuel fouling. My guess is you are burning oil in the combustion chamber causing this.
This could indicate failed piston rings but could be a number or things. I would recommend bringing it to a reputable shop to get ac second opinion.
vance and hines short shots
screaming eagle air filter
power commander 5
I called dyna jet and tell them if the power comander is responsible, this is their answer....
That does not look like fuel fouling. You have a massive buildup of carbon and it would take a long time for that to build up from fuel fouling. My guess is you are burning oil in the combustion chamber causing this.
This could indicate failed piston rings but could be a number or things. I would recommend bringing it to a reputable shop to get ac second opinion.
#7
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