Yep, the average boater doesn't want to premix there oil or can't premix it properly. AH, what the heck. 100:1 is close enough, right? Or who cares if it smokes, I'm going 25:1. And the next thing you know it is carboned up and stuck a ring. I know YAMAHA continued to offer many 2 strokes as premix or oil injected models well into the 2000's, and had little to no trouble out of them. Basically oil injection took the user out of the equation in many aspects as a source of trouble by putting in a system to do the work for them, and warning horns to tell them when they made a mistake.

Exactly correct....and I suspect that the EPA and their overzealous a$$holes might have had something to do with it also. Just like the mandate for 4 strokes.

how to do it
 

how do i remove the oil injection system on my 150 mercury out board 1988

try this


http://wellcraftv20.com/community/sh...ection+removal

I agree w/Ferm...usually a pretty safe position...if your fuel is mixed properly, then lubrication is covered...then you gotta make sure what happened to my 200 Merc DOESN'T happen to yours...carb leaned out and scorched #5 cyl...moral of that story: don't use old gas and don't use ethanol gas...:sad:

Since our engines were twins, I've been very worried after I saw what happened to yours. I can do the old gas part, but unfortunately, New Jersey doesn't allow non-ethanol gas to be sold in this state, so I'm SOL. .Was thinking that I'd start using Sta-Bil or some other brand that's made with an Ethanol gas formula

Oh Man...sorry about that...like said, mine wasn't an oiling problem, but a leaned out carb...That said, if you can't get non ethanol gas, yeah, I'd be spendin' the extra bucks on Sta-Bil or similar...trust me, Destroyer...it's WORTH it...

And when I mentioned old gas, I'm only talking about gas bought in May, engine goes down in June after putting 25-30 gals of Hi-Test on top of it...:cen:

premix
 

West marine sells premix containers with gas to oil ratio u need at fuel up, get two loaded with oil and add as u gas up. good time to add all the other crap we put in our fuel too. lucas has good 2 stroke oil but the motor u have is probably the one I would use.

Wal-mart sells a pre-mix bottle. It's just an empty transparent bottle with different pre-mix ratios printed on the side. So if you're mixing 50:1 yuo fill the bottle with how much oil you would add, (based on the chart on the side of the bottle) to however many gallons of gas you are going to put in. Safe, dependable, no guessing, correct formulation each and every time. Bottle costs less than $10. I have two (in case I lose one) that I use for my smaller (9.9 hp and smaller) engines that I use on lakes and rivers. Cheap investment, and well worth the money for the amount of guessing and worry that it saves you.

My favorite part of mixing gas and oil is when you put in enough oil for 12 gallons but theres only enough room to get 8 gallons in.