1990 Johnson Evinrude "ES" Cross V 88 thru 115, 150 thru 175 Service Repair Manual, P/N 507874, Page 17Get this manual
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Gearcase Model 150, 175, 155WTP 155WTA 155WTL, WTX
Model 150, 175 155WT
Recommended OL77JC4 0.030 in(0,8 mm) 0L16V FIXED GAP
Alternate L77JC4 0.030 in(0,8 mm) L7