1997 Johnson Evinrude "EU" 9.9 thru 30 2-Cylinder Service Repair Manual, P/N 507263, Page 265Get this manual
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Checking Propeller Hub Slippage9.9-30 The propeller torque fixture is used to detect slippage between the propeller and hub1 There are two sets of holes for mounting the propeller stops to the base an