Jet Jon project

[fishinwrench]

1 hour ago, gotmuddy said:

FWIW, almost every oil injection system I have seen on atvs/outboards works the same. 

You're mistaken.   I can't speak for ATV's but Johnson/Evinrude had 1 that only became a problem child after fuel refiners started adding alcohol to the fuel. After updating the diaphragm to one that was alcohol resistant (VRO2) it was fine, in spite of the bad name it got after those standard diaphragms failed.  There was actually a Service Bulletin early on.....but it got ignored 😔

Mercury has had 4 different systems. Auto-Blend, Black Max O/I (for carbureted engines), Magnum O/I (for EFI), and Optimax direct inject (for DFI).  Only 2 of those can be deleted the way you are thinking.  

Yamaha and Suzuki have never been "blenders".

Fuel atomization, ignition timing, and heat range control....all come into consideration when you change the way an engine lubricates.     Ignoring all of that just ensures that the engine isn't going to run as designed, and definitely isn't going to last as long.  

[gotmuddy]

47 minutes ago, fishinwrench said:

You're mistaken.   I can't speak for ATV's but Johnson/Evinrude had 1 that only became a problem child after fuel refiners started adding alcohol to the fuel. After updating the diaphragm to one that was alcohol resistant (VRO2) it was fine, in spite of the bad name it got after those standard diaphragms failed.  There was actually a Service Bulletin early on.....but it got ignored 😔

Mercury has had 4 different systems. Auto-Blend, Black Max O/I (for carbureted engines), Magnum O/I (for EFI), and Optimax direct inject (for DFI).  Only 2 of those can be deleted the way you are thinking.  

Yamaha and Suzuki have never been "blenders".

Fuel atomization, ignition timing, and heat range control....all come into consideration when you change the way an engine lubricates.     Ignoring all of that just ensures that the engine isn't going to run as designed, and definitely isn't going to last as long.  

I have only had experience with the yamaha setup.  I haven't owned a mercury large enough to have oil injection, and the omc 40/50's I have had were blocked off, but I thought they injected into the intake??  It has been a long time.

 

forgot that I had a 115 that had the oil injection hooked up but I didn't trust it so I mixed the gas 100:1 to give it a little bit of a backup haha.

[fishinwrench]

Yeah the demise of the 2-stroke is 100% on the hands of those who operated and worked on them.   

Nearly everyone over-oils, and over-oiling causes them to smoke excessively, increases the build up of carbon, and causes them to run too hot.   The more oil you add to the fuel the hotter the engine runs.... because oil slows the burn, increasing the amount of time that FIRE is inside the powerhead.   

A poorly maintained 4-stroke is no friendlier to the environment than a poorly maintained 2-stroke.  Plus it's far less reliable.   The whole movement to 4-stroke outboards is right up there with the stupidest things ever done.  🙄

[snagged in outlet 3]

1 hour ago, fishinwrench said:

The whole movement to 4-stroke outboards is right up there with the stupidest things ever done. 

New waders for didimo!

[fishinwrench]

2 hours ago, snagged in outlet 3 said:

New waders for didimo!

You win !  😅

[gotmuddy]

3 hours ago, fishinwrench said:

Yeah the demise of the 2-stroke is 100% on the hands of those who operated and worked on them.   

Nearly everyone over-oils, and over-oiling causes them to smoke excessively, increases the build up of carbon, and causes them to run too hot.   The more oil you add to the fuel the hotter the engine runs.... because oil slows the burn, increasing the amount of time that FIRE is inside the powerhead.   

A poorly maintained 4-stroke is no friendlier to the environment than a poorly maintained 2-stroke.  Plus it's far less reliable.   The whole movement to 4-stroke outboards is right up there with the stupidest things ever done.  🙄

I absolutely love my yamaha 4 strokes.  They are more complicated than a carbureted engines but I would not go back to anything except maybe a 3 hole yamaha.

[fishinwrench]

15 minutes ago, gotmuddy said:

I absolutely love my yamaha 4 strokes.  They are more complicated than a carbureted engines but I would not go back to anything except maybe a 3 hole yamaha.

Just curious.....What is it that you love so much?   Is it because it's quieter?  That's the only thing I can fathom. 

 

If you think it's quiet now, just wait.... cuz  it's gonna get even quieter.  

Nothing is quieter than a motor that won't run and can't be fixed. 😅

[snagged in outlet 3]

1 hour ago, fishinwrench said:

Just curious.....What is it that you love so much?   Is it because it's quieter?  That's the only thing I can fathom. 

 

If you think it's quiet now, just wait.... cuz  it's gonna get even quieter.  

Nothing is quieter than a motor that won't run and can't be fixed. 😅

You love that joke don’t you?    😆

[fishinwrench]

19 minutes ago, snagged in outlet 3 said:

You love that joke don’t you?    😆

I love it because I invented it.....and because it's honestly no joke. 😉 

4-stroke outboards are heavy, overly huge, low on power output, and designed to only outlast their warranty.......But they ARE quiet and they are smooth running machines for awhile...... can't deny that.   

[snagged in outlet 3]

7 minutes ago, fishinwrench said:

I love it because I invented it.....and because it's honestly no joke. 😉 

4-stroke outboards are heavy, overly huge, low on power output, and designed to only outlast their warranty.......But they ARE quiet and they are smooth running machines for awhile...... can't deny that.   

What the prognosis on my Etec?  3.5 years old with a “7 year warranty”.   I know they quit making motors.  But Dan that thing runs good!!