Not fun. The Mercury even had a warning system but that failed too. I won't own any 2 stroke unless it's premix or the injection can be disabled.
Better safe than sorry was the general idea, and having been stranded once I do not look forward to doing it again. Having said that are there any precautions I should take to counter the impact of the rich mix.
I know in the eighties some manufacturers were saying to do that. But I have heard that they backed off from that and went back to I know my Johnson did just that as it's and even for racing according to the manual.
Running lean is much worse than running rich Anyway, just doulble check on this before you attempt Mercury used a plastic gear, so that is a no brainer on why it failed.
OMC uses a vacuum pump just like the gas and is drawn in with the fuel. If you lose a line or get an airleak it is possible. Yamaha and Zuki use a gear drive right off the crank Ever hear of a motorcycle blown up from VRO failure? The reason boats do is the carb gets gummed, it runs lean, it blows a piston, the mechanic blames the VRO because it is easier to blame the equipment than the customer. If you melt one or 2 pistons, carb. You scorch the crank and score all cylinders, then VRO failure.
The odds of it and the warning system not working is slim to none. If you did lose 3 engines to VRO, you should consider a different brand engine or get a second opinion. I did this when i bought my 90 Yammie just to make sure. Damn thing ran like crap. If you insist on doing it you might as well disconnect because you are over oiling and already using more oil than a premix. If you maintain current status you should run ring free and do a decarbonization every 50 hours or so.
Shop would rebuilt and repair. Bike would run great for 3 weeks to 3 months then vro would fail again. This engine is most commonly identified by its single 2-barrel downdraft carburetor. In a second V4, with minor changes, was introduced.
It was manufactured from This engine utilized a single inline four barrel side draft carburetor to make 90 horsepower. Externally the V4 can be identified by an square ish engine cover with spark plug access doors. The V4 can be identified by a more rounded engine cover without doors. All models have exhaust gases that exit through the cavitation plate through-the-prop exhaust wasn't available on the V4 engines until Other notable design changes for V4 engines: First year for battery ignition magnetos would continue on some models until Since when the V4 loopcharged engines were introduced these outboards have been commonly called the "crossflow" V4 engines.
Although manufactured from they received no significant design changes after The V4 crossflow engines were sold in two sizes, 85 and horsepower. The pinnacle would be the horsepower manufactured from There are three very distinguishing characteristics that separate them from the engines:. The first and most obvious is the modern, sharp edged, triangular engine cover that emphasizes the low profile of the 90 degree crossflow V4 engine a contrast to Mercury's tall inline six cylinder.
The second is the new one piece gearcase with through-the-prop exhaust and rubber hub propellor no more shear pins for the V4. The third is the two side-draft 2-barrel carburetors. Something like the Cougar being a luxury Mustang. Skip to content Evinrude vs Johnson. Evinrude vs Johnson. Ask A Member. This topic has 35 replies, 19 voices, and was last updated 5 years ago by PugetSoundBoater. Currently, there are 0 users and 1 guest visiting this topic.
Viewing 15 posts - 1 through 15 of 36 total. October 21, at pm I'm sure this has been asked before but I couldn't find it in a search.. From what I gather, they are both made by OMC and use mostely the same parts.. If so, what's the difference? WillyBWright Fleet Admiral. Joined Dec 29, Messages 8, Re: Difference between Evinrude and Johnson Starting in the s, Johnson and Evinrude were basically the same product with different paint. A few years before OMC went bankrupt in the late s, the Johnson line remained the same while the Evinrude line started in the direction of environmentally friendly models.
Time will tell what Bombardier does with them down the road. Joined Jan 24, Messages 4, In when Bombardier took over, the Johnson line also included 4-strokes, now up to hp. Cricket Too Lieutenant Commander.
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