Johnson 115 - Troubleshooting Fuel Delivery - Part 1

[@pduderocker]

The red lever is a primer solenoid. It’s activated by pushing in the ignition switch at cold start up. It can be moved to always on for troubleshooting but should remain in the full automatic position for normal use. It is not designed for carburetor tuning. Your port motor runs nice! Good luck with everything and thanks for posting.

[@user-rr8dn5yl7d]

I think that's what I said in the video. If not this one another in the series. I appreciate your contribution to the discussion.

[@hepeng2627]

Thanks share this video

[@MrNormanddu76]

Hi mate ,have you found your problem? If not try to replace thé small blue fitting on thé bottom of your engine ,i had exactly thé same thing on mine and that was this blue thing blocked😉

[@arthurpauletti9342]

How do u eliminate that particular VRO with the vapor canister.

[@user-rr8dn5yl7d]

I haven't made a video about that yet. But there are some good ones on KZbin. Check out Brandons Garage or Danger Marine channels.

[@MichaelWebb-h4d]

Your saying that there is no adjusting for idle

[@user-rr8dn5yl7d]

No, I'm not saying that.

[@richbarraco1307]

I’m purchasing a boat with a 2005 Johnson 115hp V4 engine. Do you know if they have the same problems? Do you have any advice for maintenance and what to look out for with that engine? Thanks

[@user-rr8dn5yl7d]

Hi Rich. Unfortunately all of OMC's modern outboards (Johnson, Evinrude, etc.) use plastic carbs and fuel components. My advise for pre-purchase inspection is to look at the mating surfaces between the plastic component like where the bowl mates to the carb body. That's where they tend to warp. Take feeler gauges with you and if you can get any of them between the gaps you'll have a problem. You can also check for vacuum leaks by spraying starter fluid around the carbs and fuel system while it's running. if you hear the engine rev up when you do then it's sucking in air. I would also check to see if the VMO has has been deleted. If not I would replace it with a suitable fuel pump and pre-mix your 2-cycle oil. Best of luck to you and feel free to hit me up if you find yourself doing repairs and need advise. I'm happy to help.

[@jonrogers147]

How do I connect fuelline ?

[@user-rr8dn5yl7d]

The fuel line connects to the white fitting to the lower left of the red primer valve.

[@MichaelWebb-h4d]

How to adjust theiderling

[@user-rr8dn5yl7d]

There are multiple ways to adjust the idle. Each carb has an adjustment that should be synced. And the linkage can also be adjusted.

[@qw-ei3ki]

sailing my engine does not exceed 3300rpm... Help me

[@emitowww]

It could be a lot of things. Sounds like a fuel flow obstruction or vapor in the line.

[@user-rr8dn5yl7d]

Could also be a mismatched prop. More information is needed to make an educated guess.

[@emitowww]

You should never run your engines without the airbox, your pistons will end up damaged !

[@dmitriy1838]

If run them for test only, they gonna be perfectly fine…

[@user-rr8dn5yl7d]

There is some truth to that when it comes to lawn equipment, dirt bikes and even road vehicles because they operate in a dirty environment. But it's just not true of outboard motors that operate in a clean environment. Outboards don't even use air filters. They are designed to suck in air totally unfiltered.