1987 Johnson/Evinrude CU Outboards 35A thru 55 Service Manual, Page 103Get this manual
Installation Recommendations
INote the VRO follow the installation inStructions packaged with Carefully oil reservoirIncorrect installation might restrict
the oil supply to the engine and cause serious powerhead damage1Determine if the standard oil reservoir has sufficient capacity for the applicationIf it doesn 't, consider 3.5 or 7.0 gallon reservoirRefer to Optional Equipment, this section2Choose reservoir location that allows easy access and is within installation recommendationsThe reservoir has 10ft(3 m) of oil hose and 12 ft(3,6 m) of wiring harness3The reservoir hose can be extended to maximum of 25 ft(7,6 m)If the installation is extended, the oil hose between the primer bulb and engine must be one continuous section with no fittings or connectionsDo not add on to the existing hoseThe wiring harness can be extended by soldering on additional lengths of 16 gauge wireProtect the connections with shrink tube and electrical tape