Sooty sparkplug

Johan F

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Johan
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Triumph Tiger 855
Hello I have a Tiger 885-98 as it gets very sooty on one spark plug, cylinder 3. If I change the spark plug to new it goes well for a while then it is the same again. I checked and cleaned the carburetors. Also calibrated them. Check the compression.
Has also switched ignition coil between the spark plugs without results.
New air filter is fitted. But nothing helps. I can't find anything wrong! Anyone have any idea what it might be?
 

Greyfell

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Stephen
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2008 Triumph Bonneville T100 Ann-Margret
You have checked all of the right things, as the start of the process. Now, it is time to dig deeper, and I will have to leave that to members with more experience.
 

Qship

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Sounds like one carb is still running rich.
Did you get them synchronized(balanced)? Is that what you meant by calibrated?
 

shanered6

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shane llywarch
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Moto Guzzi Stelvio 1200 ntx
Yes as Q says its running rich so its probably the float level in that carb or may be the needle posission is different or the jets are slightly more worn ? .... so there's a few things you can check there .
 
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