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HELP! MS 660 carb issue

whybother

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I'll try to get some video when I get back to it this week.
 

drf256

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There is a low base and a high base cyl for the 066/660. I cannot remember the particular applications but I wonder if they could be mistakenly switched, and still run somewhat?
I’m not sure on this. Do you mean thick vs thin base? The only thin base jugs I know of were 52mm 064. The 52mm 650 and all 54mm 066/660 jugs I’ve seen are thick.
 

whybother

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There is a low base and a high base cyl for the 066/660. I cannot remember the particular applications but I wonder if they could be mistakenly switched, and still run somewhat?

I’m not sure on this. Do you mean thick vs thin base? The only thin base jugs I know of were 52mm 064. The 52mm 650 and all 54mm 066/660 jugs I’ve seen are thick.

I had a minute to look at this and with the jug bolted down getting a good base measurement is not easy...
However measured it every way could think of and tried to do the same with the trashed jug on a flat surface. They are identical as far as I can tell.
 
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