1989 Johnson/Evinrude Outboards 88 thru 110 150 thru 175 models Service RepaIr Manual P/N 507757, Page 153Get this manual
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Thermomelt Stik Procedure 1 Install correct test
3 Reduce engine speed to 900 RPM and mark both cylinder
1250 (520and 1630 (730 Thermomelt
4 At 900 RPM, the 1250