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Old 07-04-2007, 11:46 PM
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Default Johnson 115 HP outboard 2 stroke

I'm having some startup issues. My outboard seems to struggle to startup, however, once I've started it, it will starts up with no problem the rest of the day. Any advice?
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Old 07-04-2007, 11:55 PM
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Default RE: Johnson 115 HP outboard 2 stroke

What year is it?
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Old 07-05-2007, 10:55 AM
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Default Re: Johnson 115 HP outboard 2 stroke

1996
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Old 07-05-2007, 11:00 AM
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Default Re: Johnson 115 HP outboard 2 stroke

do you squeeze the fuel bulb before starting? It also might be an issue with the fuel in the carbs that spills forward when you tilt the motor up. Had the same prob with my old carbed 140 years back, normal.
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Old 07-05-2007, 12:37 PM
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Default Re: Johnson 115 HP outboard 2 stroke

Are you priming? Without using the primer when cold the engines are very difficult to start.

Cold Starting:
- Squeeze bulb until firm
- Prime engine while cranking (Press key in, then turn key to activate starter.)


Never use the primer when the engine is warm, it will flood.
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Old 07-05-2007, 09:10 PM
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Default Re: Johnson 115 HP outboard 2 stroke

I always prime. I live in San Diego so it's never really cold. Do you have a list of steps I should take to try and remedy the problem? How do I know if the starter is going? Is it the battery?
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Old 07-05-2007, 09:41 PM
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Default Re: Johnson 115 HP outboard 2 stroke

Hendrix: If the motor cranks as fast as it ever did when you try to start it, but it just won't fire, then it's not a starter problem or a battery problem. On the other hand, if it struggles to turn over, then it could be one of those things, but it also could be some other problem.

We could be more helpful (perhaps) if you could describe more clearly what happens when you turn the key.

FF
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Old 07-05-2007, 09:43 PM
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Default Re: Johnson 115 HP outboard 2 stroke

Make sure oyu arepushing the key in when starting cold.
I had same problem on my new to me boat before i read the manual
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Old 07-05-2007, 09:53 PM
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Default Re: Johnson 115 HP outboard 2 stroke

I had this same motor and it was a winner.

You might want to start with a compression check to see if you are good and close to the same pressure in all 4 cylinders.
Look at your plugs to see if the are gapped correcty and burning clean-there are about 3 different heat ranges available for this engine.
Test the to make sure the spark coming off of the plug is nice and blue, nut orange and weak indicating a low battery or a problem with your power pack (like a coil).
No spark is a no brainer right
With the motor running you can also remove one wire at a time to make sure there is a difference in how she sounds when you do this. If there is not, then a bad cable or plug may be part of the problem.
Advanced timing can also make for harder starts
T
hat covers the electric, so the only other thing it could be is gas.

Here I generally recommend a can of seafoam sprayed into the carbs every year to clean things up. If that doesn't work, then a carb rebuild and boil out would be my ultimate choice after assuring that my primer ball stays hard prior and during motor operation after priming.
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Old 07-06-2007, 12:10 AM
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Default Re: Johnson 115 HP outboard 2 stroke

Quote:
hendrix217 - 7/5/2007 9:10 PM

How do I know if the starter is going? Is it the battery?
You can hear the starter turning the motor over, if you have dead silence its something else like the battery Not sure how to even begin
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Old 07-06-2007, 02:18 AM
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Default Re: Johnson 115 HP outboard 2 stroke

How well does it idle after starting and later in the day?
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Old 07-06-2007, 06:31 AM
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Default Re: Johnson 115 HP outboard 2 stroke

I had a 1996 115 Evinrude (same motor) It absolutely would not start unless I had it trimmed out some. Hot or cold didn't matter. Trimmed all the way down (in) to vertical was a biotch to start. Going up (out) from vertical to 1/2 trim (not tilt) it would start easily when cold and just bump the starter when warm. I assume it had something to do with the floats in the carbs??????????
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Old 07-06-2007, 10:04 AM
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Default RE: Johnson 115 HP outboard 2 stroke

As someone already said....when starting cold make sure you push the key in when turning to start.....this activates the choke.....they will not start when cold, even on a hot day, without pushing the key in. Also don't push the key in to start once the engine has been warmed up....it will never start until you stop pushing the key in once warmed!


Had an incident 4 or 5 years ago when my kids were younger and more inexperienced (1999 90 HP Johnston - which is a detuned 115). All they knew was push the key in to start. Out on Vineyard Sound with some friends and someone bumps the lanyard and engine dies. Floating around for 10 to 15 minutes, getting dark, engine cranks, won't start. Call me on cell (HELP!!!!) and after a few minutes of Q and A, I say "Don't push in the key!!!!". Started right up and home they came.

Hope your problem is as simple!

Good luck.
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Old 07-06-2007, 04:38 PM
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Default RE: Johnson 115 HP outboard 2 stroke

When all else fails, replace complete fuel hose and bulb. A weak fuel hose allows fuel to drain back to tank. Without fuel in line motor will not start on first crank. Most fuel hoses are only good for 3 yrs when exposed to sun and weather full time.
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Old 07-07-2007, 09:08 PM
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Default Re: Johnson 115 HP outboard 2 stroke

thanks for all the good advice!!! The suggestions have been helpful!. Aj
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Old 07-07-2007, 09:22 PM
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Default Re: Johnson 115 HP outboard 2 stroke

So what was the outcome?
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Old 07-07-2007, 09:33 PM
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Default Re: Johnson 115 HP outboard 2 stroke

i have an 86 johnson 150 that also dislikes the initial start. while i know this isn't how it is supposed to have been done, this is the advice given to me by my mechanic and it works. open the primer solenoid, prime manually with the ball, close the primer solenoid and start it up. this has been working well. this only needs doing on a cold strat. once it has warmed sufficiently, it starts first try.

charlie
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Old 07-07-2007, 10:01 PM
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Default Re: Johnson 115 HP outboard 2 stroke

Did this just become an issue, or has it always been difficult to cold start?
Sounds to me like the choke solenoid has a loose connection or has gone bad.
Tahe the engine cowling off and you will see the choke solenoid and the rod connecting the carbs on the starboard side. Verify that this assembly moves when you push in the key switch. If it does not check for connections loose or corroded.
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Old 07-08-2007, 12:04 AM
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Default Re: Johnson 115 HP outboard 2 stroke

The outcome is that it's a bit finicky on cold startup. If I open up the throttle and push the choke on startup it usually gets going. I may replace the bulb and the fuel line as well but haven't done that yet. I noticed as well that my problem is similar to baypro21 in that it likes to be tilted up. Could this be the floats in the carb??? Aj
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Old 07-02-2014, 04:50 PM
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Default

I had the same problem plus blue smoke at startup. Once started it ran well. Did turn engine off in the middle of the lake once and had big time problems starting it again. Replaced the low pressure (lift) pump. Works like a charm. Hope this helps.
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