1998 Johnson Evinrude "EC" 40 thru 55 2-Cylinder Service Manual, P/N 520206, Page 68Get this manual
VRO Oil SystemInstallation Recommendations 1Determine if the standard oil reservoir has sufficient capacity for the applicationIf it doesn't, consider 3.0 gallon reservoirRefer to VRO Oil Supply SystemOptional Equipment, this section2Choose reservoir location where the reservoir is easily accessible, and is never submerged or exposed to direct rain or water spray3The reservoir has 15 ft(4,5 m) of oil hose and 17 ft(5,3 m) of wiring harnessThe reservoir can be maximum of 25 ft(7,6 m) from the outboard If the reservoir is more than 15 ft(4,5 m) from the outboard, the oil hose between the primer bulb and outboard must be replaced with one continuous section with no fittings or connectionsDo not add on to the existing hose The wiring harness can be extended by soldering on additional 16-gauge wire to each leadProtect the connections with shrink tube and electrical tapeMaintain wire color and polarity when extending harness4When making oil hose connections in the oil supply system, use only the clamps supplied with the system Do not use tie strapsThey do not provide adequate clamping action Do not use metal worm clamps on vinyl hoseThey can damage the hose and cause leakage5Do not put oil in tank until "LOW OIL" warning system test below