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Jan 23rd, 2013
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2010 Yamaha F115 4 Stroke slower to start #12514625
11/24/17 01:36 PM
11/24/17 01:36 PM
Joined: Jul 2012
Posts: 802
Gladewater , Tx
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littlewheel Offline OP
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Gladewater , Tx
Went to start my motor on the muffs yesterday and it took a little longer to start than normal. Probably 10 seconds or so. Usually it just fires right up with the turn of the key. I wouldn't think that the colder weather should affect it being that it is fuel injected. I will add that the gas is probably 6-8 months old, however, it is non ethanol. it runs fine when it starts, just took quite a while longer than normal. Will start right back up after first started. After sitting overnight it took awhile again when I tried this morning. Am I worrying about nothing?

Re: 2010 Yamaha F115 4 Stroke slower to start [Re: littlewheel] #12514752
11/24/17 04:06 PM
11/24/17 04:06 PM
Joined: Mar 2010
Posts: 6,490
Temple, TX.
T
T Bird Offline
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Temple, TX.
If you have room in your fuel tank, add some fresh gas to see if it makes a difference.

Re: 2010 Yamaha F115 4 Stroke slower to start [Re: T Bird] #12514765
11/24/17 04:21 PM
11/24/17 04:21 PM
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Posts: 802
Gladewater , Tx
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littlewheel Offline OP
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Originally Posted By: T Bird
If you have room in your fuel tank, add some fresh gas to see if it makes a difference.
I only have a little less than 1/4 tank right now. I will add a couple gallons fresh gas tomorrow.

Re: 2010 Yamaha F115 4 Stroke slower to start [Re: littlewheel] #12515661
11/25/17 02:35 PM
11/25/17 02:35 PM
Joined: May 2003
Posts: 11,492
Littlefield Tx & Lake A. H. US...
gary purdy Offline
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Littlefield Tx & Lake A. H. US...
Sea Foam


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
Re: 2010 Yamaha F115 4 Stroke slower to start [Re: littlewheel] #12515808
11/25/17 05:52 PM
11/25/17 05:52 PM
Joined: Jan 2004
Posts: 1,318
Dallas, TX
Classic Used Boats Offline
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Classic Used Boats  Offline
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Dallas, TX
The injectors are known to clog up. I have had two of those motors. Takes a little time to clean, but I cleaned them myself. They run/startup great when clean.

Re: 2010 Yamaha F115 4 Stroke slower to start [Re: littlewheel] #12515821
11/25/17 06:19 PM
11/25/17 06:19 PM
Joined: Apr 2017
Posts: 1,167
San Angelo
tmd11111 Online content
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tmd11111  Online Content
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San Angelo
Check battery voltage

Re: 2010 Yamaha F115 4 Stroke slower to start [Re: littlewheel] #12515841
11/25/17 06:50 PM
11/25/17 06:50 PM
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Posts: 2,837
Austin, Tx
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Bob Landry Offline
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Austin, Tx
Adding fresh gas will only give you diluted bad gas. Additives will not fix bad fuel. You know what needs to be done.


2015 Seaark 1872 MV CC Etec-90
Two Helix 12 CHIRP SI's, , MinnKota Riptide ST80/i-pilot Link, Bob's Hydraulic
2018 Robalo R180 CC, Yamaha 115

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Re: 2010 Yamaha F115 4 Stroke slower to start [Re: Bob Landry] #12517723
11/27/17 03:31 PM
11/27/17 03:31 PM
Joined: May 2003
Posts: 11,492
Littlefield Tx & Lake A. H. US...
gary purdy Offline
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Littlefield Tx & Lake A. H. US...
Originally Posted By: Bob Landry
Adding fresh gas will only give you diluted bad gas. Additives will not fix bad fuel. You know what needs to be done.
Yep after setting for 8 months you better add something to clean the junk out of the fuel system. I really figured he was changing the fuel. Pretty obvious. Hope he has already checked under the cowling for mud dobbers. Going to need to change all fuel filters, oil, oil filter and sparkplugs.


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
Re: 2010 Yamaha F115 4 Stroke slower to start [Re: gary purdy] #12517764
11/27/17 03:57 PM
11/27/17 03:57 PM
Joined: Jul 2012
Posts: 802
Gladewater , Tx
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littlewheel Offline OP
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Gladewater , Tx
The old fuel will be pulled out before adding new fuel. I know that adding new gas on old will just make more bad gas. it hasn't sat for 8 months, the fuel is about 8 months old. It doesn't use much fuel and I don't run around the lake all day so that is why a tank lasts a long time

Last edited by littlewheel; 11/27/17 03:59 PM.
Re: 2010 Yamaha F115 4 Stroke slower to start [Re: littlewheel] #12518119
11/27/17 09:03 PM
11/27/17 09:03 PM
Joined: May 2003
Posts: 11,492
Littlefield Tx & Lake A. H. US...
gary purdy Offline
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Littlefield Tx & Lake A. H. US...
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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
Re: 2010 Yamaha F115 4 Stroke slower to start [Re: littlewheel] #12534871
12/11/17 11:20 PM
12/11/17 11:20 PM
Joined: Jul 2012
Posts: 802
Gladewater , Tx
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littlewheel Offline OP
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Gladewater , Tx
Fuel checked out fine. injector filters were a little dirty. Fuel system was cleaned, 100 hr service performed and went ahead and had water pump impeller replaced.

Re: 2010 Yamaha F115 4 Stroke slower to start [Re: littlewheel] #12539287
12/15/17 03:59 PM
12/15/17 03:59 PM
Joined: Jan 2017
Posts: 31
Burleson
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I had a pair of 2006 F150 that got that way. There in a fuel filter element on the motor itself. Check that first if you have not already done that. see if this opens if so i think your part is number 4. its easy to change.

http://www.boats.net/parts/search/Yamaha/Outboard/2006%20and%20Later/F115LA/FUEL%201/parts.html

Then there are two more associated with the fuel pump that are a little harder to change and could well be it. It is in the fuel pump itself. I think yours is number 4 and 25 on this schematic.

http://www.boats.net/parts/search/Yamaha...%201/parts.html

Third is it could be your pump up bulb.

Re: 2010 Yamaha F115 4 Stroke slower to start [Re: cobia_254_cc] #12539293
12/15/17 04:01 PM
12/15/17 04:01 PM
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Posts: 31
Burleson
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Burleson
Also stabil will recondition old fuel to a usable state. Go to their website and look at their research.

Re: 2010 Yamaha F115 4 Stroke slower to start [Re: cobia_254_cc] #12539739
12/15/17 11:19 PM
12/15/17 11:19 PM
Joined: May 2003
Posts: 11,492
Littlefield Tx & Lake A. H. US...
gary purdy Offline
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Littlefield Tx & Lake A. H. US...
Originally Posted By: cobia_254_cc
Also stabil will recondition old fuel to a usable state. Go to their website and look at their research.
bolt


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
Re: 2010 Yamaha F115 4 Stroke slower to start [Re: gary purdy] #12539820
12/16/17 12:38 AM
12/16/17 12:38 AM
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Posts: 6,445
Red Oak, Galveston, and Pagosa...
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Red Oak, Galveston, and Pagosa...
Originally Posted By: gary purdy
Originally Posted By: cobia_254_cc
Also stabil will recondition old fuel to a usable state. Go to their website and look at their research.
bolt


Yeah....right. Im not doubting you believe it.....but, I AM doubting that it could possibly restore ANYTHING. Prevent? Maybe. Restore? Never in a million years. If it was that a miracle fluid, I'd still have my doubts.

I have never, ever, seen anything repair a rotted fuel line other than a trash can and a new piece of line. As for "fixing"'bad fuel....the only thing to do there is drain it and replace it with fresh.

Man.....shouldn't even say what you're saying in a public forum. Someone's gonna believe it and it's gonna cost them huge repair bills.


Eat. Sleep. Fish.
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