Question about Briggs & Stratton Garden

1 Answer

Engine seems to flood out when increasing speed and dies

Briggs & Stratton engine model 311700 17.5 HP Engine starts and idles good, BUT when engine speed is increased, it starts smoking (black) and dies. Had carb apart and do not see any problems, but could have internal leak. Please advise. This problem started after mowing one day. Engine has always backfired when shuting off.

Posted by on

  • grieke Sep 14, 2009

    Additional info on Briggs engine model 311700 on Troy Lawn Tractor 17.5 HP. This model has a Nikki Carb as you will know that carb has no float adjustment. Please help my understanding how the engine will start and idle good, but will flood out at higher speeds or under a power situation. Would the needle and set not leak while idling, or is it only when increasing the speed or applying power the leak would start? What other problem could cause a flooding problem other than the carb? Timing-Valves or What?

×

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

    Governor:

    An expert whose answer got voted for 20 times.

  • Expert
  • 123 Answers

If it starts lightly smoking black smoke at high RPM it is flooding or getting too much fuel. The float is leaking you may have not set the float height correctly when you put that carb back together. Or the needle and set could be bad.

Posted on Sep 12, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Ok i have a problem with my Briggs & Stratton 16HP v-twin vanguard engine.When i start the engine and rev it up when i idles back down it sits there and rev's up and down then it straightens out and...


It appears that you have a slight mis-adjustment in the idle speed and idle mixture. To adjust setup, start with at least a half tank of fuel, and have engine at operating temperature (That is warm but not overly Hot). The Briggs & Stratton Website manuals section should show the locations of the adjusting screws if you are not sure of them.
To adjust idle speed set Throttle control to minimum and adjust screw on throttle butterfly to maintain a good idle speed. To adjust idle mixture, screw in idle mixture screw (Lean) until motor falters and then screw out (Rich) until it falters again. Correct setting is the halfway point of these two positions. You may have to re-adjust idle speed again and also the mixture to get best running.
If you are not comfortable doing this, take it to a B & S dealer.

Sep 21, 2010 | Briggs & Stratton Briggs Stratton Vanguard...

1 Answer

How does one increase the engine rpm on a briggs and stratton v-tek 26 hp motor?


should be a metering screw for the carb that goes in and out for idle adjust.

Jul 28, 2010 | Briggs & Stratton Briggs Stratton Intek V...

1 Answer

16 HP briggs and stratton poulan severe flooding


The carb is not closing down properly. You will need to either rebuild the carb or just replace it. Basically the float is staying open after you shut the machine down. Please rate

Jun 04, 2010 | Poulan 38-Inch Steel Deck 15.5 HP Briggs &...

1 Answer

Briggs & Straton 20 HP, two cilinder engine idle speed


Surging is usually caused by a lean condition You can try to turn the mixture screw ccw about 1/4 to 1/2 turn. If this does not solve the problem your carb will have to be removed, cleaned thoroughly, and reinstalled.

May 17, 2010 | Briggs & Stratton Briggs Stratton Intek V...

1 Answer

I have a briggs and stratton 14 hp ohv engine on my murray lawn mower it starts and runs good until i go to full throttle or engage the blades then it seems to flood out and start backfiring i can lower...


It sounds like you are putting it into choke mode. The choke is usually all the way up on tractors. And it will make it backfire and flood out. Just rev it high enough to work and don't go into the choke mode. hope this helps.

Apr 21, 2010 | Poulan 38-Inch Steel Deck 15.5 HP Briggs &...

1 Answer

20.0 HP 502CC B&S engine, riding mower - stopped going full speed, black smoke from muffler, "misses" ALOT - model number looks like a backwards E followed by 1P977


Carb flooded or extremely out of adjustment and or completely malfunctioning.

Disassemble carb and inspect Float and needle valve.

Hope this provided some ideas for your repair.

r/
David

Jan 13, 2010 | Briggs & Stratton Briggs Stratton Intek V...

1 Answer

Briggs & Stratton 135212/0129 - Homelite HL2500


the choke should be in the off position when running. YOU put the choke on to start it then when it starts u turn it off. If the choke is on the engine will die when reving

Aug 02, 2009 | Electrical Supplies

Not finding what you are looking for?
Garden Logo

Related Topics:

968 people viewed this question

Ask a Question

Usually answered in minutes!

Top Briggs & Stratton Garden Experts

Phil Walker
Phil Walker

Level 3 Expert

605 Answers

John Trevino

Level 3 Expert

1383 Answers

wadingriver
wadingriver

Level 3 Expert

2069 Answers

Are you a Briggs & Stratton Garden Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...