1980 Johnson 4HP Service Manual, Page 50Get this manual
SECTION POWERHEAD
TABLE OF CONTENTS
PAGE DESCRIPTION OF OPERATION TROUBLE ISOLATION CHECKING TEMPERATURE REMOVAL OF POWERHEAD DISASSEMBL OF POWERHEAD CLEANINGINSPECTIONAND REPAIR REASSEMBLY OF POWERHEAD REASSEMBL OF POWERHEAD EXHAUST HOUSING BREAK-IN 5-2 5-2 5-3 5-5 5-5 5-6 5-8 5-10 5-12 5-13
SPECIAL TOOL REQUIRED Powerhead Holding Fixture Crankshaft Seal Remover and Installer Wrist Pin Retaining Ring Remover Part Number 303605 Part Number 391060 Part Number 325937