1981 Johnson/Evinrude 4HP Outboards Service Manual, Page 79Get this manual
OUTBOARD MARINE CORPORATION 100 Sea Horse Drive WaukeganIllinois 60085 .S .AAttn: Customer Services Dept
Outboard Marine Belgium N.vPathoekeweg 72 B-8000 Brugge Belgium Outboard Marine International, Inc75 N.E179th Street P.O Box 693530 Norland Branch Miami, Florida 33169