Question about Briggs & Stratton Lawn-Boy Insight Series 21-Inch 190cc 650 Series Gas Powered Engine Variable Speed Self-Propelled Lawn Mower

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Briggs statton 375 starts runs very high revs how can i slow it down

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  • 6,468 Answers

Remove the top cover from the engine and see if theres a nest stopping the governor from moving

Posted on Aug 21, 2012

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6ya6ya
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SOURCE:

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Posted on Jan 02, 2017

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hunter19_46m
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SOURCE: Briggs and Statton Sprint Lawnmower engine 3 years

Hi
Sounds like you have dirt/debris in your carburetor jets,fuel passages or a diaphgram that is becoming non-flexible.
Be sure to check your fuel tank for water and dirt/debris, if there is water/debris then you need to clean your tank.
Also check you fuel line condition after a while they will degrade and need replacment.
Make sure you are getting spark at the spark plug, to do this:
Check/Clean/Replace your fuel filter if you have one.
When you remove your fuel lines from the carburetor be sure to make a drawing to how the lines are connected to the carburetor.
Also make sure you are using fresh fuel...and oil mix if your using a two cycle mower or weedeater with the oil to the right mixture and not too much oil as it can cause hard starting.
If the mower/weedeater is over a couple of years old, then I recommend that you buy and install a new carburetor repair kit,because the diaphragm will get hard and that will cause it to be hard to crank.
Sounds like you will need to clean the carburetor or replace your carburetor internal rubber parts like the diaphgram and O rings.
I recommend that you use a laquer thinner type cleaner to clean and dissolve the laquer build-up in the float and needle jet passages.
Be sure to remove all plastic and rubber parts before using the laquer thinner because it can dissolve the plastic parts and render them unuseable.
Be sure to use compressed air to blow out all the fuel and air passages.
Be careful when blowing out the passages, because there are sometimes small rubber type seats in the bottom of some of the passages.
Sometimes you can get by with priming the carburetor or using starting fluid and letting it run a few times like that and it will flush the gunk out of the jets,but most of the time you will need to rebuild the carburetor.
Keep in mind that the float (if you have one) for the carburetor must be level when you go to reassemble the carburetor or follow the instructions you get with the carburetor kit.
When you clean your carburetor and remove the jet screws, you will first need to lightly seat the jet screws.
But before you lightly seat the jet screws count the number of turns it takes to seat the jet screws from their original position.
Be sure to mark the turns down on a piece of paper.
That way when you put the jets back in, you know to lightly seat them first and then turn them back out to their orginal position before you started.
Once you have your carburetor rebuilt that should solve your problem.
This is a FREE answer,Please take time to rate me

Posted on Jun 19, 2011

hunter19_46m
  • 7482 Answers

SOURCE: i have a brigg and statton mower 550 series its

Hi bilsdrums53...
Sounds like you have debris/trash in your carburetor or maybe water in the fuel tank.
Check and clean your fuel tank.
Clean your carburetor and that should solve your problem

Posted on Aug 16, 2011

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My engine is draining batteries. It starts and runs fine at first then struggles to start in future uses and will not restart if I stop.


The following is from the Briggs and Statton FAQ website:


Battery Not Charging

  • Engine RPM too low
  • Inline fuse "blown" (if equipped)
  • Defective battery
  • Loose, pinched, or corroded battery ground leads
  • Loose, pinched, or corroded battery charge leads
  • Open, shorted, or grounded wires between output connector and battery
  • Defective diode (open or shorted)
  • Defective or improperly grounded regulator-rectifier
  • Diode installed incorrectly (reversed)
  • Damaged battery (shorted battery cells)
  • Excessive current draw from accessories
  • Damaged alternator magnets
  • Defective stator

May 04, 2015 | Briggs AND Stratton Intek Briggs &...

1 Answer

I have a brigg and statton mower 550 series its brand new i used it twice and now when i prime it it will start but run for a few seconds then stop what causes this can i fix it?


Hi bilsdrums53...
Sounds like you have debris/trash in your carburetor or maybe water in the fuel tank.
Check and clean your fuel tank.
Clean your carburetor and that should solve your problem

Aug 16, 2011 | Briggs & Stratton Garden

1 Answer

How to adjust the valves on a 20 horse power OHV bgiggs and statton engine on a sears craftsman rideing mower model number 917.276824


Here is one solution for doing it and I will repeat with the Briggs suggested maintenance procedure.

http://pkjones.hubpages.com/hub/Hard-to-start-Briggs-and-Stratton-engine

Scroll down to ADJUSTING OVERHEAD VALVES.
http://www.briggsandstratton.com/engines/support/frequently-asked-questions/Servicing%20the%20valves/

Remember, proper setting of the overhead valves is important to insure that the ACR (automatic compression release) system operates correctly enabling a much easier start. Good luck.

Aug 13, 2011 | Garden

1 Answer

I have a Victor 4-stroke (sprint 375) which is 8 yrs old. Never missed a beat until yesterday where the engine now revs, then almost cuts out, then revs, then almost cuts out etc. All 'obvious' components...


You need to take the carb off and clean it out real good.i would suggest taking a bread wire and run through the passages in carb then soak in mineral spirits or other cleaning solution.blow out with air hose.

Dec 10, 2010 | Briggs & Stratton Garden

1 Answer

Ihave a tank mounted carby type Briggs and Statton


it should be right below the link to the choke rod
if not what is the engine number

Mar 07, 2010 | Briggs & Stratton Ignition Kit 2-8 HP...

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