1991 Johnson Evinrude 9.9 Thru 30 HP Models Service Manual P/N 507946, Page 61Get this manual

1991 Johnson Evinrude 9.9 Thru 30 HP Models Service Manual P/N 507946, Page 61

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Description of Fuel System LJ is operated changes in crankcase pressureAlternately,
2 The carburetor meters and distributes the fuel consumed
intake charge densityreact corr.ectly to wide