1981 Johnson/Evinrude 4HP Outboards Service Repair Manual P/N 392069, Page 24Get this manual

1981 Johnson/Evinrude 4HP Outboards Service Repair Manual P/N 392069, Page 24

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CLEANING, INSPECTION AND REPAIR GENERAL INSTRUCTIONS
NEEOLE VALVES
Inspect the tapered end of the needle valves for grooves, nicks, scratches; replace if necessarySee Figure 3-11 00 NOT at