1998 Johnson Evinrude EC 5 thru 15 HP Four Stroke Service Manual, Page 280Get this manual
Checking Propeller Hub SlippageAll Models The propeller torque fixture is used to detect slippage between the propeller and hub1There are two sets of holes for mounting the propeller stops to the base and bushing assemblyThe inner hole pattern is used for current outboard models through the 30 modelsInstall the propeller stops in the inner hole pattern