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Older Evinrude issue
#10650747
02/26/15 09:54 PM
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Joined: Jan 2008
Posts: 521
Fish Inspector
OP
Pro Angler
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OP
Pro Angler
Joined: Jan 2008
Posts: 521 |
I have a older 115 Evinrude carb'd engine that looses power when you give it full throttle. It seems to idle Ok, but when you power it on, it falls on its face. It sometimes tries to take off but then poops out. I have drained the fuel and replaced a power pack. wtf. I'm at wits end.
Can a coil cause this or ya think its carb issues.
Thanks for any help.
FI
I'm a humble fisherman in the service of our Lord. Started fishin at 5 years old and can't stop. I've owned a boat every day from age 16. I fish for every type of fish in every different way.
Kevin
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Re: Older Evinrude issue
[Re: Fish Inspector]
#10651053
02/26/15 11:54 PM
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Joined: Aug 2007
Posts: 4,591
stick steering
TFF Team Angler
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TFF Team Angler
Joined: Aug 2007
Posts: 4,591 |
Sounds like a carb overhaul is needed
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Re: Older Evinrude issue
[Re: Fish Inspector]
#10651189
02/27/15 12:43 AM
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Joined: Jul 2007
Posts: 7,154
opus
TFF Celebrity
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TFF Celebrity
Joined: Jul 2007
Posts: 7,154 |
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Re: Older Evinrude issue
[Re: Fish Inspector]
#10651228
02/27/15 12:53 AM
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Joined: Jun 2009
Posts: 1,658
Jared Nic
Extreme Angler
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Extreme Angler
Joined: Jun 2009
Posts: 1,658 |
Sounds like its fuel related to me. Maybe starving for fuel. Check carbs,and gas lines,and primer bulb.
Last edited by Jared Nic; 02/27/15 12:54 AM.
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Re: Older Evinrude issue
[Re: Fish Inspector]
#10651286
02/27/15 01:10 AM
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Joined: May 2003
Posts: 11,586
gary purdy
TFF Guru
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TFF Guru
Joined: May 2003
Posts: 11,586 |
With the cowling off move the control to full throttle while watching the timing advance. I have seen the timer base sticking and not letting the advance work. If motor is lean you should be able to push the choke while throttling up and help it. Most likely stick is right. You can pull the plugs that cover the high speed jets and clean and flush them sometimes. Look here: http://www.boats.net/parts/search/BRP/EVINRUDE/1980/E115TXCSA/CARBURETOR/parts.html
The world will not be destroyed by those who do evil, but by those who watch them without doing anything. Remember what He has done and remember that He is not done yet!-- GOD IS GOOD
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Re: Older Evinrude issue
[Re: Fish Inspector]
#10651941
02/27/15 04:47 AM
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Joined: Jun 2008
Posts: 1,390
FMJshooter
Extreme Angler
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Extreme Angler
Joined: Jun 2008
Posts: 1,390 |
Gary got ya pretty well covered other simple tests to run-
Compression test is always a good idea no use chasing ghosts if your problem is internal
It very well could be a coil dropping out leaving you with three cylinders too. Simple spark tester from autozone should show that, make sure it will jump a 1/2 to 7/16 gap in the tester. You'd be surprised how well some of these old engines will idle on three cylinders I had a coil go bad and it just ran at slightly lower rpm at idle, would still go on plane but then start stumbling.
Squeeze the primer bulb if it doesn't get rock hard somethings leaking somewhere
Pull the cover off the carbs and squeeze the primer bulb if any fuel starts seeping or dripping that carb needs attention.
Try to run whatever tests you can without the engine running first because if it is a lean issue that's a quick death for a power head. That being said having someone squeeze the primer bulb while you run will bypass the fuel pump and pretty much tell you if it's fuel delivery.
Last edited by FMJshooter; 02/27/15 04:53 AM.
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Re: Older Evinrude issue
[Re: Fish Inspector]
#10653080
02/27/15 06:27 PM
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Joined: Feb 2015
Posts: 49
boatmannmike
Outdoorsman
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Outdoorsman
Joined: Feb 2015
Posts: 49 |
On older engines you could be experiencing fuel line internal breakdown. That is where the interior of the fuel line is collapsing. Orrrr! You have a hardened diaphragm in the fuel pump. Both sympthoms are a result of ethonal fuel........
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Re: Older Evinrude issue
[Re: Fish Inspector]
#10653126
02/27/15 06:44 PM
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Joined: Sep 2012
Posts: 811
bbassfishes
Pro Angler
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Pro Angler
Joined: Sep 2012
Posts: 811 |
Timing, carbs, or compression. I have had the same problem for all the on a 94 120 Evinrude. Just pray its not compression problems.
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Re: Older Evinrude issue
[Re: Fish Inspector]
#10654029
02/28/15 12:23 AM
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Joined: Feb 2005
Posts: 203
UncleJed
Outdoorsman
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Outdoorsman
Joined: Feb 2005
Posts: 203 |
My old Johnson acted just like that last time on the water,and turned out to be the fuel filter restricted with trash...Hope yours is that easy!
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Re: Older Evinrude issue
[Re: Fish Inspector]
#10654184
02/28/15 01:03 AM
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Joined: Sep 2008
Posts: 121,070
hopalong
Pescador Loco
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Pescador Loco
Joined: Sep 2008
Posts: 121,070 |
has the fuel pump been rebuilt? if not it is probably time, screen cleaning too.
" Hop, set the hook"! hopalong 99,999 TexDawg 99,999 FJB! not my president by a long shot!
lake fork FISHERMANS COVE MARINA/reservations - 903 474 7479
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Re: Older Evinrude issue
[Re: Fish Inspector]
#10655942
02/28/15 06:16 PM
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Joined: Aug 2007
Posts: 4,591
stick steering
TFF Team Angler
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TFF Team Angler
Joined: Aug 2007
Posts: 4,591 |
If compression is down on a cylinder it could be a stuck rings,you can remove the head and inspect for damage,if you see none ,replace the head and then remove the plug ,put it on earmuffs ,pump a lot of 2 stroke oil in the cylinder and let it sit for a while then right before you start put a little more oil in it,'leave the spark plug out and run the motor at a fast idle for a few minutes,then check compression ,if it comes up some ,repeat the process again,
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Re: Older Evinrude issue
[Re: Fish Inspector]
#10662963
03/03/15 03:13 AM
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Joined: Dec 2012
Posts: 726
BrazosRiverTom
Pro Angler
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Pro Angler
Joined: Dec 2012
Posts: 726 |
When trying to give it power under a load, not on muffs, have you tried to choke it when it tries to die. If it picks up speed after choking it is a fuel issue somewhere.
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Re: Older Evinrude issue
[Re: Fish Inspector]
#10662987
03/03/15 03:24 AM
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Joined: Aug 2007
Posts: 4,591
stick steering
TFF Team Angler
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TFF Team Angler
Joined: Aug 2007
Posts: 4,591 |
Take it to a good mechanic ,speculating can cost you a lot in the end ,if its carbs and its running lean ,even a short distance can burn a hole in a piston and then the real fun begins.
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