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Fuel oil mixture mower 158cc - Briggs & Stratton Garden

Posted by Anonymous on


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Posted on Jan 02, 2017


SOURCE: gas/ oil mixture

If it is a riding lawn mower it is probably not a two cycle engine so there would not be a gas oil mixture. It must be a 5 horse power or higher so it would use straight gas. I hope this will help you. donnyb60

Posted on Mar 21, 2009

  • 680 Answers

SOURCE: I inadvertantly placed the fuel

It won't do any harm in fact it may do it some good. The only real side effect I can see is a little smoke comming out of the exhaust.


Posted on Feb 12, 2011

Testimonial: "Feedback was timely and assisted with the problem. A great site to visit but unfortunately not well known as I stumbled on it accidently "

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SOURCE: Can I use Std. Gas with Ethenol plus oil mixture

You can use regular gasoline in your lawn mower engine as long as it is not a two stroke. If you add oil separate from the gasoline, then it is four stroke, not two stroke. Something to keep in mind with today's gasoline is that it starts to go bad after about a month. So for example, if you leave fuel in it over the winter you will most likely have starting problems come the spring. These problems could include hard starting up to non start requiring a carburetor cleaning. Keep these things in mind when you buy your fuel and when you store your mower. If you are going to buy a lot of fuel or not use the fuel very fast, you can add fuel stabilizer to the gas soon after you get it to help with these problems. I am living in drought striken Texas and I use fuel so slowly right now that I have taken to adding fuel stabilizer when I purchase it.

I hope this helps you out.

Posted on Sep 02, 2011

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158cc 5.0 500 series Briggs Mower rough up and down idle suspect Carberator I need to know how to fix?

Hi mtedepew...

Sounds like you have dirt/debris in your carburetor jets or fuel passages.
Check/Clean/Replace your fuel filter if you have one.
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 year 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 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

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My mtd tradesman lawn mower does not run smooth. where is the idle mixture adj. screw? the engine is the tecumseh 5.5 hp model #VLV55 501029A(D)

These engines do not have an idle mixture adjustment. Most of the problems with them not running right are from bad gas, water in fuel, or carburetor jet deposits. If your fuel is ok, then you'll want to clean the carburetor metering hole. You'll want to either empty the fuel, or clamp the fuel line, but after that, take the nut off the bottom of the carburetor bowl. You will see holes both in the sides, and through the middle. Use a wire to clean these out, and some acetone or carburetor cleaner to get the rest of the deposits out, and you should be fine.

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