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10-03-2016, 03:55 PM

#1312

1QwkSport2.5r

Join Date: Oct 2006

Location: Cottage Grove, MN

Posts: 10,416

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Surging at WOT no matter the needle setting tells me there's an obstruction in the fuel system.

My ST .90 surges at WOT, but it will go pig rich or hard lean. It only surges within 1200-1500rpm of peak. Haven't had time to troubleshoot it yet.

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