Joe wrote:

(i) Check the overall oil consumption, pencil or texta mark the tank
then
use a specific number of gals of fuel, refill the oil to the mark & see
how
much it's actually using, 50 to 1 is about right any less & consider
having the
VRO disconnected, then mix tcw3 oil in the fuel tank at 50 to 1.

This will not work. If you find that you are using 50 to 1 through your VRO
system, you have a problem.
The VRO is designed to inject oil at varying rates, from 150 to 1 to 50 to
1. So, unless you are running full throttle all the time you will not see 50
to 1 being consumed through VRO.

It "used" to be that way but they found too many dead motors even by OMC
standards:-) They changed it to a constant 50 to 60 to 1 ages ago & changed the
name of course being OMC & all. It's still the same defective system it always
was.

Again if your OMC doesn't consume oil at at least the rate of 50 to 1 then
have the VRO disconnected & mix tcw3 in the tank at that rate.

The engine can run OK on less than 50 to 1 but it doesn't leave enough
residual oil in the engine to protect it from rust between uses. Used to be
even OMC recommended more oil for engines that were not run "regularly"
(whatever that means).



Best bet is disable the VRO and pre mix.

Absolutely great advice which should apply to all but a really newish 2
stroke OMC. (not including the Ficht )


I have found that Quicksilver oil burns very cleanly in the older Johnson's.

K