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Definitely needed to be gone through, good call. Looked good to go in your first pic!
Looking forward in seeing the valve and valve guide steps. Are valve guides something you buy, or are the made/machined to fit the application? How many miles do you think this bike has?
I can't believe you were using an acid wash.
Besides being an engine with an oil filter, could the absence of damage be due to cast iron rather than chrome bores?
Hi ThereI Thought Lemans Bores Were Nikasilratherthan Cast Iron.You May Want To Check Before You Start Honing. Dont Think The Nikasil Plating Likes Honing.Paul
I thought they were iron.
Vapor blasting is the ultimate solution I think. Good investment in your case since you seem to restore lots of bikes, plus the health concern is enough to fully justify the expense.