1978 Johnson 175, 200, 235 HP Outboard Service Repair Manual P/N JM-7810, Page 79Get this manual
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dLoosen but do not rel110v entirely tl1screws holeing lower bearing l'etail1er plate to lowel' crankcase 1eadSee Figure 5-24cranksl1aft with l'awhide l11aHet to break seal tw rankcas and cylinderSee F