Sure is quiet in here....do I need to start a fight?

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Any ideas for getting this carbon out of the top of this jug? Stihl 4 mix...and I want to be careful with the valve seats which cuts out my normal pack it with Scotch Brite and spin it routine.
b75cc2a969b67fd6552fe671bd173c4c.jpg
945466050fa20b5a526cfe2fb5a91e25.jpg
 
Any ideas for getting this carbon out of the top of this jug? Stihl 4 mix...and I want to be careful with the valve seats which cuts out my normal pack it with Scotch Brite and spin it routine.
b75cc2a969b67fd6552fe671bd173c4c.jpg
945466050fa20b5a526cfe2fb5a91e25.jpg
Easy Off........and a tooth brush.....old toothbrush not yer current one......
 
Mr Muscle is what the Colt Pielstik factory reps specified to dicarbon the piston crowns of the 8000 hoss V-16s......carbon on those was about 1/4" thick and it worked pretty good. Gotta let it sit and do it's work and then some elbow grease and they'd clean right up.....all 32 of them...…..arrrg.....

As Jerry said it will discolor alum...…but not really an issue in a cumbustion chamber.
 
Mr Muscle is what the Colt Pielstik factory reps specified to dicarbon the piston crowns of the 8000 hoss V-16s......carbon on those was about 1/4" thick and it worked pretty good. Gotta let it sit and do it's work and then some elbow grease and they'd clean right up.....all 32 of them...…..arrrg.....

As Jerry said it will discolor alum...…but not really an issue in a cumbustion chamber.
Figure I'll warm the jug up a bit...spray it down and let it soak. Valves too.
 
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