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#11381530 - 01/30/16 09:34 PM Yamaha 115hp has hesitation on acceleration.
Tx_ThumpAddict Offline
Extreme Angler

Registered: 03/01/13
Posts: 1084
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: 1379
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 Offline
Extreme Angler

Registered: 03/01/13
Posts: 1084
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 Offline
TFF Guru

Registered: 05/24/03
Posts: 11040
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” Remember what He has done and remember that He is not done yet! 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 Offline
Extreme Angler

Registered: 03/01/13
Posts: 1084
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 Offline
Extreme Angler

Registered: 03/01/13
Posts: 1084
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 Offline
TFF Guru

Registered: 05/24/03
Posts: 11040
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” Remember what He has done and remember that He is not done yet! 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 Offline
Extreme Angler

Registered: 03/01/13
Posts: 1084
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 Offline
TFF Guru

Registered: 05/24/03
Posts: 11040
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” Remember what He has done and remember that He is not done yet! 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: 3459
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 Offline
Extreme Angler

Registered: 03/01/13
Posts: 1084
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 Offline
Extreme Angler

Registered: 03/01/13
Posts: 1084
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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