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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:need gas/oil mix for Lawn Boy Insight 20 in snowblower please

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5 Suggested Answers

6ya6ya
  • 2 Answers

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

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Posted on Jan 02, 2017

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  • 57 Answers

SOURCE: drive wheel on Lawn Boy "Insight" squeaks, oiling didn't help

Very likely a bearing going bad.

Posted on May 21, 2009

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SOURCE: Lawn-Boy Insight Series 21-Inch 190cc 650 Series Gas Powered Engine Variable Speed Self-Propelled Lawn Mower: my engine will only stay running for about 3 secon...

Maybe the engine is running with the fuel from the primer bulb (about few seconds), the carburator is not working and need to be removed checked and cleaned, the most common fail is a jet clogged.

Posted on Dec 16, 2010

hunter19_46m
  • 7482 Answers

SOURCE: Describe your Lawn-Boy 10640 20-Inch

Hi haystackcalh...

Sounds like you have dirt/debris in your caburetor jets,fuel passages or a diaphgram that is becoming non-flexible.
Check/Clean/Replace your Air Filter, a dirty air filter can make your engine run to rich with fuel.
Note: ALWAYS USE COMPRESSED AIR TO CLEAN YOUR JETS AND PASSAGES, VERY IMPORTANT.
Note:Before you disassemble the carburetor:
Mark each piece with a awl, or some kind of instrument that will make an alignment scratch before you disassemble the carburetor into separate pieces.
That way you will know which way it goes back together when you reassemble it.
Sometimes you can get by with priming the carburetor or by 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.
Be sure to check your fuel tank for water and dirt/debris, if there is water/debris then you need to clean your tank.
Check you fuel line condition after a while they will degrade and need replacment.
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.
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 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.
The diaphgram may look good and flexible, but it can be deceiving and not act as a fuel pump as it should because it has become too hard and will cause hard starting,start and run and shut off, etc.
When you clean your carburetor, 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.The higher air pressure is needed to blow some of the trash/debris from the fuel or 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.
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, or you could also ask the parts man that you get your kit from.
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 original position before you started.
Once you have your carburetor cleaned/rebuilt that should solve your problem.
Please take time to rate me

Posted on Aug 21, 2011

  • 6468 Answers

SOURCE: removing recoil assembly on Lawn Boy 20" mower. Appears to be riveted on. Do I need to snap rivets?

you can drill them out and replace when done or remove the whole cover and repair the recoil on the cover bolts and lock nuts can replace them if you must take it off just make sure they don't hit the flywheel

Posted on Aug 21, 2012

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1 Answer

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first thing i would try is putting some sea foam through the fuel mix with gas as instructed and let it run for a while may help

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Oil change


STOP !

Your lawn mower is has a 4 cycle engine
It does not require oil to be mixed with the gas
The oil for the crankcase should be a 10W-30 or 10W- 40
NO GAS IN THE OIL
What you have is a 2 cycle oil that is mixed with gas for most weed eaters, chain saws, ect
Putting a gas/oil mix in your mower WILL severely damage it destroying the main bearings and could lead to an explosion or fire.
Please be careful

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My brand new Briggs and Stratton Lawnboy won't start!!!


if you play with it u will void the warrantee. call the dealer u got it from

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I can't find my manual for a Tecumsah LawnBoy 824E 8.0HP Electric start snowblower. It starts fine, but does not continue running. I just filled the tank with new gas. It ran to run about 25 feet and then...


Hi
Sounds like a clogged carb which is a common problem for snowblowers due to they set around more then they get used and gas turns stale and clogs carb. Most of the times the problem is in the bolt that holds the carb bowl on it should have 2 or 3 small holes in it. Check that the holes are all open and clean if this does not help you will need to remove and clean whole carb.
Sam
Please vote

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Sep 20, 2009 | Briggs & Stratton Lawn-Boy Insight Series...

1 Answer

What is the 2 cycle oil to gas mixture for a 2 cycle lawnboy


20:1 gas to oil is a good place to start. Some mowers thin down to 80:1. If you can tell me the model of the mower I can be more specific, but starting at 20:1 will assure you have adequate protection for the engine. If it's exhausting lots of oil smoke after it has warmed up; you can cut back a little each time until you have minor oil smoke.

at 20:1 you need to add 6.4 ounces of oil to one gallon of gas.

Here's a nifty calculator for various ratios:

http://www.csgnetwork.com/oilfuelcalc.html

Enter 1 gallon of gas, then change the ratio number and then press calculate and the number of ounces per gallon will be displayed.

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