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carb / fuel supply issue

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Following my previous message about leaking carburettors (Dellortos) , I have replaced both carbs pump body gaskets and diaphragms and they don't leak anymore

But I now have another problem;

When I start the engine , it goes right up to very high revs ans won't slow down whatsoever.

As I have not changed any setting at all,  I wonder whether something (float assemblies ?)

may have moved Inside the carbs (I turned them upside down several times to clean them)

making them supply too much fuel to the engine ?


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I had a similar problem when I mis-adjusted the linkage between the two carbs so that one was always part-on.  Was hard to start, but then ran away with itself. I say mis-adjusted - I actaully slotted the linkage together incorrectly. 


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