When I was swapping my main jets last summer, I noticed that the internals of my carbs were dark and sooty. I'm pretty sure that a carb in good condition should be clean and shiny since it should only deal with air and fuel.
Is this a symptom of bad piston rings?
Carbon fouling my carbs?
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- Joined: Mon Jan 03, 2005 1:33 pm
- Location: San Juan Mountains, CO
Re: Carbon fouling my carbs?
Any backfiring when starting or under any driving conditions?
Do you see any carbon deposits in the Air Intake hood Group # 1-35-15?
See anything in there might backfiring on you at times, if you do
might be a rich or bit too far advanced.
Do you see any carbon deposits in the Air Intake hood Group # 1-35-15?
See anything in there might backfiring on you at times, if you do
might be a rich or bit too far advanced.
Puller: 71' 710K 2.7L EFI aka Mozo
Follower: Sankey MK 3, 3/4 Tonne
Rescue Pinz: 73' 712MK
Driver: Ron // KO0Q
Follower: Sankey MK 3, 3/4 Tonne
Rescue Pinz: 73' 712MK
Driver: Ron // KO0Q
Re: Carbon fouling my carbs?
I was thinking timing as well.
What about a weak intake valve spring or possibly wearing valve seats...
What about a weak intake valve spring or possibly wearing valve seats...
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- Location: San Bernardino Ca
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Re: Carbon fouling my carbs?
They all get dirty. Very normal, the crank case vents into the air box, the more blow by, the faster the sooty build up.
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- Posts: 545
- Joined: Mon Jan 03, 2005 1:33 pm
- Location: San Juan Mountains, CO
Re: Carbon fouling my carbs?
Thanks for the replies guys.
Could it also have anything to do with 10% ethanol in my gas? A friend of mine said that his snowmobile did that when he started using ethanol gas.
Could it also have anything to do with 10% ethanol in my gas? A friend of mine said that his snowmobile did that when he started using ethanol gas.