1986+ Mercury 6/8/9.9/10/15HP 2-stroke Factory Service Manual, Page 179Get this manual

1986+ Mercury 6/8/9.9/10/15HP 2-stroke Factory Service Manual, Page 179

POWERHEAD
Bleed System
1Inspect bleed hoses for deteriorationReplace hoses as required2Inspect bleed check valve in lower crankcase cover for proper functionValve should flow fuel only one way from bottom of crankcase cover to top crankshaft bearing via bleed fitting at top of crankcase coverIf check ball in valve is stuck open or closed, replace check valveBleed fitting at base of carburetor drains excess fuel which puddles at base of reed block

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