If ya send the WT to me, I'll properly 'dispose' of it by porting the hell out of it and muff modding it...
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I am working on the 790 today, the cylinder has been through its second boiling, and now simply needs to be wiped down and sprayed with carb cleaner, then dried out with compressed air.
Why do you boil the cylinder?
Lee
With a little dish soap, and light boiling/heating up of it, that crud comes off a lot easier, and most of it comes off and goes into the water.
Most important thing to remember is go easy... I imagine if you boiled the hell out of it, you'd end up with sludge in the pan... like RandyMac said about some Rambler carb...
Even 30 minutes in hot/almost boiling/boiling water helps a lot in further cleaning efforts... for me anyways. I think it helps that crud loosen up and makes it easier to scrape it off without scratching the cylinder fins and the like.
In the end, it really doesn't matter how a cylinder is cleaned, as long as it doesn't get harmed in the process...
Ultrasonic, by far, would be the fastest, especially with paint thinner in the container that you have the part in.
Sometime, I will be getting one of those ultrasonic cleaners at HF... the big and small ones, actually. Small for small parts and carbs, and big for cylinders, pistons, connecting rods, etc.