SOHC.co.uk Forums > CB350/400

cheap ultrasonic cleaner

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AshimotoK0:
I suppose for that money you can't go wrong. The test is to put a piece of aluminium foil in the tank and  after a couple of minutes of ultrasonic action you should see tiny perforations when you hold it up to the light. Some Chinese small ones are very aggressive though and the foil turns to dust so be careful. I agree that  it's best remove all of the old fuel varnish  &  a good dunk in solvent will remove most of it. Get parts as clean as you can 'mechanically'/chemically  then ultrasonically clean. Test the cleaning fluid with a scrap  alloy carb part first if you have one to make sure it doesn't discolour the metal or remove the original irridescent finish if you are lucky enough to still have that finish

Glenzil:
I've been soaking the various jets in cellulose thinners and have soaked the rest in diesel for a couple of days to loosen up the crud. As soon as I've had a go with the ultrasonic cleaner ill put up some pictures and let you know what its like.

Tazaud:
I purchased the 6 litre version and have been really pleased with the results.
This pic shows my float bowls at differnt stages of ultrasonic cleaning, i think i was giving them 15 minute blasts in the cleaner and just repeating and wiping them until clean.

Trigger:
Before these ultrasonic machines were about, we used a old pressure cooker and got good results. Looks like it is doing the job.

K2-K6:
I hadn't thought of using one of those trigger,  I'll look out for an old one. My mates mum used to make grey vegetables in one when we were kids ;)

I had to clean some su carbs from a rover 2000, last weekend which had the float chambers half full of petrol tar as they'd sat for 15yrs, boiled the parts in plain water in an old saucepan. It all swelled and came off in about 10 minutes.

Proprietary carb cleaner uses acetone as far as I know,  used to be supplied as nail varnish remover amongst other things but used in fibre glass work etc.

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