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Max Online: 36273 @ 01/23/13 02:34 PM
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#11381530 - 01/30/16 09:34 PM Yamaha 115hp has hesitation on acceleration.
Tx_ThumpAddict Online   content
Extreme Angler

Registered: 03/01/13
Posts: 1031
Loc: burleson
hey guys my engine had a float stuck on one of the carbs so had them cleaned today.and it idles and runs great but when I get on the throttle hard from a stand still it wants to hesitate before it takes off. anyone had this problem before?
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#11381658 - 01/30/16 11:05 PM Re: Yamaha 115hp has hesitation on acceleration. [Re: Tx_ThumpAddict]
Ol Man River Offline
Extreme Angler

Registered: 06/16/11
Posts: 1313
Loc: Orange, Texas
Only time I had that issue years ago, it was my high speed jets.

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#11381698 - 01/31/16 12:31 AM Re: Yamaha 115hp has hesitation on acceleration. [Re: Tx_ThumpAddict]
Tx_ThumpAddict Online   content
Extreme Angler

Registered: 03/01/13
Posts: 1031
Loc: burleson
thanks omr, what did you do to fix that?
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#11381820 - 01/31/16 07:15 AM Re: Yamaha 115hp has hesitation on acceleration. [Re: Tx_ThumpAddict]
gary purdy Online   content
TFF Guru

Registered: 05/24/03
Posts: 10850
Loc: Littlefield Tx & Lake A. H. US...
Sounds to me like the idle air needs adjusted. Year model?
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“The world will not be destroyed by those who do evil, but by those who watch them without doing anything” GOD IS GOOD

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#11381859 - 01/31/16 07:50 AM Re: Yamaha 115hp has hesitation on acceleration. [Re: Tx_ThumpAddict]
Tx_ThumpAddict Online   content
Extreme Angler

Registered: 03/01/13
Posts: 1031
Loc: burleson
'03 2 stroke
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#11382056 - 01/31/16 10:12 AM Re: Yamaha 115hp has hesitation on acceleration. [Re: Tx_ThumpAddict]
Tx_ThumpAddict Online   content
Extreme Angler

Registered: 03/01/13
Posts: 1031
Loc: burleson
Is this something I could adjust myself?
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#11383675 - 02/01/16 10:40 AM Re: Yamaha 115hp has hesitation on acceleration. [Re: Tx_ThumpAddict]
gary purdy Online   content
TFF Guru

Registered: 05/24/03
Posts: 10850
Loc: Littlefield Tx & Lake A. H. US...
Yes start out by screwing each idle air screw all in then backout 1/2 turn. Run test and if needed back each screw out 1/8th turn at a time until best run test. Check all of the timing advance arm and linkage for free and easy movement. http://www.boats.net/parts/search/Yamaha/Outboard/2003/115TLRB/parts.html
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“The world will not be destroyed by those who do evil, but by those who watch them without doing anything” GOD IS GOOD

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#11385477 - 02/02/16 01:07 AM Re: Yamaha 115hp has hesitation on acceleration. [Re: Tx_ThumpAddict]
Tx_ThumpAddict Online   content
Extreme Angler

Registered: 03/01/13
Posts: 1031
Loc: burleson
thanks you very much gary,this site is awesome. I have question if you dont mind. there are 2 idle air screws on each carb(mine has 2 carbs) i would screw all 4 in and then make adjustment?
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#11385626 - 02/02/16 07:24 AM Re: Yamaha 115hp has hesitation on acceleration. [Re: Tx_ThumpAddict]
gary purdy Online   content
TFF Guru

Registered: 05/24/03
Posts: 10850
Loc: Littlefield Tx & Lake A. H. US...
Yes. Do all adjustment screws each time before testing.
_________________________
“The world will not be destroyed by those who do evil, but by those who watch them without doing anything” GOD IS GOOD

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#11385715 - 02/02/16 08:08 AM Re: Yamaha 115hp has hesitation on acceleration. [Re: Tx_ThumpAddict]
Tommy Yetts Offline
TFF Team Angler

Registered: 12/14/02
Posts: 3448
Loc: Rockwall, TX USA
If the air / mixture adjustment doesn't then check the synch.on the throttle linkages and plates.
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Rockwall Marine
Tommy Yetts

www.rockwallmarine.com

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#11387097 - 02/02/16 03:37 PM Re: Yamaha 115hp has hesitation on acceleration. [Re: Tx_ThumpAddict]
Tx_ThumpAddict Online   content
Extreme Angler

Registered: 03/01/13
Posts: 1031
Loc: burleson
thank you guys for the advise, Im going to put it in lake and adjust after work. Ill post results.
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#11387974 - 02/02/16 09:33 PM Re: Yamaha 115hp has hesitation on acceleration. [Re: Tx_ThumpAddict]
Tx_ThumpAddict Online   content
Extreme Angler

Registered: 03/01/13
Posts: 1031
Loc: burleson
I cleaned my fuel filter and started the boat and let it run til warm.and it never had any problems with hesitating. one thing i did notice is that the bulb was soft when i checked as i was loading up the boat.

any suggestions?
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