Question about Craftsman 17.5 hp 42 in. Deck Lawn Tractor - CA Model

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Lawn mower motor

Gasoline in crankcase is this motor rouine?

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No it's sounds like the float in carb is stuck I've had 3 motors do this I put a fuel shut off in the line after I cleaned the carb out and rebuilt it. The problem is the gas breaking down an gumming up the float in carb. Drain the oil and an run some oil thur it to get the old gas out make sure you clean the carb out to.

Posted on Sep 24, 2008

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98902-2065-B1 briggs & stratton oil:petrol ratio pls


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I have Gas in my oil sump and sprays mixture out exhust when trying to start mower


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My Lawn mower seems to be produced by ALKO, but has the Briggs and Stratton emblem also. It is the 40b model and having just inherited it, I am trying to find out if I put just petrol in or whether I need...


Hi scottcoles5...
The easy way to find out if the motor is 2 or 4 cycle is to check to see if the engine has oil in the crankcase...if it does it is a 4 cycle and you will NOT have to mix oil with your gas. 2 cycle engines do NOT have an oil in the crancase and depend on the oil you mix with your gasoline.
You can also check the color of the gasoline in the tank, most 2 cycle oils contain a colorant to color the gas to let you know there is oil in the gas...
Free Answer...Please take time to rate me

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Does toro lawnmower need oil/gas mixture or does it take plain gasoline?


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1 Answer

I have put two stroke oil in my four stroke lawn mower. What should I do


If you put the 2-stroke oil in the crank case you will need to drain the crankcase oil and refill with the appropriate oil. If you added the 2-stroke oil to the gasoline, you can siphon a gallon or so out of the tank and replace with fuel only to dilute the oil. It might smoke a bit will be OK.
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1 Answer

Gasoline in the crankcase


If, inside of the carburator the needle and seat does not close (dirt in carb) the fuel will slowly keep pushing through the carb,through the intake into the cylinder then into the crank case.
Do not run this engine until the carb. is rebuilt. The float in the carb.also needs checked to be sure it still floats and its at the exact factory setting.
Also have a new inline fuel filter installed.
Check for dirt in fuel tank.
Keep the air filter clean and in good condition.
I hope this helps you.

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What is the oil to gasoline ratio for a 3.8hp mtd push mower?


Most mowers are four stroke machines and don't need oil put into the gasoline, it has a crankcase to support the lubrication. If you mower sounds like a chainsaw when it's running it's two stroke, if it sounds like most othe mowers it's a four stroke.

If by chance it is a two stroke (which I doubt) use 3oz of "two stroke engine oil" for each gallon of gas.

May 16, 2009 | Mtd 22" Yard Machine Push Mower

1 Answer

Gasoline fills the crankcase


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May 16, 2009 | Garden

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