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ultrasonic carb cleaning

Technical help for Series one, two and three Lambrettas. Models include the Li, Li Special, TV, SX, GP, Serveta and API/SIL models

ultrasonic carb cleaning

Postby lam1962brettagg » Sat Feb 16, 2019 8:45 pm

just bought an ultrasonic thingy and carb cleaning fluid for it. to clean a couple of sh1 original carbs. anyone used one before? if so any tips and advice welcome. cheers in advance of replies.
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Re: ultrasonic carb cleaning

Postby missing lynx » Sat Feb 16, 2019 9:19 pm

A mate of mine has one and said if you use the wrong medium in the water it can pit the soft alloy body
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Re: ultrasonic carb cleaning

Postby Tractorman » Sun Feb 17, 2019 9:31 am

I took sticky's advice on this and used cilit bang. It worked well.
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Re: ultrasonic carb cleaning

Postby lam1962brettagg » Sun Feb 17, 2019 10:00 am

I thought cillit bang was not to be used on alloy, thats if a carb is alloy? alluminium, not sure really?
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Re: ultrasonic carb cleaning

Postby Tractorman » Sun Feb 17, 2019 12:09 pm

All I can say is it did mine no harm.
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Re: ultrasonic carb cleaning

Postby nickw » Tue Feb 19, 2019 4:06 pm

I bought one recently. On its second outing the transducer fell off and caused the wiring in the box to smoke badly. Good job I was nearby. Awaiting a replacement.
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Re: ultrasonic carb cleaning

Postby Storkfoot » Tue Feb 19, 2019 5:51 pm

I had a Vespa carb ultrasonically cleaned twice. Neither attempt worked. A new carb sorted the issue.

I am just giving this feedback so you don’t think that ultrasonically cleaning a carburettor always works.
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Re: ultrasonic carb cleaning

Postby Fast n Furious » Wed Feb 20, 2019 12:39 am

Storkfoot wrote:I had a Vespa carb ultrasonically cleaned twice. Neither attempt worked. A new carb sorted the issue.

I am just giving this feedback so you don’t think that ultrasonically cleaning a carburettor always works.

Very True Storkfoot. Ya can't polish a turd. :lol:
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Re: ultrasonic carb cleaning

Postby Storkfoot » Wed Feb 20, 2019 12:47 am

Fast n Furious wrote:
Storkfoot wrote:I had a Vespa carb ultrasonically cleaned twice. Neither attempt worked. A new carb sorted the issue.

I am just giving this feedback so you don’t think that ultrasonically cleaning a carburettor always works.

Very True Storkfoot. Ya can't polish a turd. :lol:

I would add that the said Vespa carb had been in the Scooter since the late ‘70s without turning a wheel in anger :-)
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Re: ultrasonic carb cleaning

Postby lam1962brettagg » Wed Feb 20, 2019 10:33 am

just to add
my carb on inspection does look clean and not completely caked in crap.
it has been running but have had issues with mixture and seizing after running for about 10 mins. so want to give it a good clean believing that there might be a 'turd' inside somewhere. :D
i might be barking up the wrong tree but want to rule out the possibility of a dirting or partially blocked carb ( inside)
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