or a high frequency?
http://www.amazon.com/Kendal-C ommercial-liters-ULTRASONIC-CL EANER/dp/B008ET4PPU/ref=sr_1_1 ?s=industrial&ie=UTF8&qid=1441 329122&sr=1-1&keywords=kendal+ ultrasonic+cleaner&pebp=144132 9128794&perid=0KY7SSJ8J9TNQ413 5ZHF
cleaned them up good
Now to test in morning, bike mostly assembled ready for testing
I think ventures suck
well only when the intake valve opens!
looks good. might use ultrasonic next time