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have tried using gasoline, paint thinner and can get most off the valves but the engine inside is really hard to clean. Tried wire brush but still cannot get everywhere and i think that is what is making my valves stick. I have plenty of new oil in the bottom of the engine. Is there something I can spray into the engine?

If your valves are sticking you may have left the mower out in the weather. A worn valve guide will also make it stick. By taking the head off and the small cover on the side of the engine where you see the breather hose come out you can take the valve out and clean them on a wire wheel. When I put them back in I use a little STP on the valve stem. Wal_Mart sells a small engine repair manual. I don't know how good it is, but it should help you. You can try to library too for a manual.

2006-09-30 12:41:14 by telefonquestion

Here is my home made 12 v generator... found the engine in the trash..Works Great!!!

Nope it will not hurt the engine itself. If you have any moisture in your tank or carb the ethanol will separate from the gas and mix with the water and cause all kinds of problems. It will eat at all the rubber hoses on the fuel lines if they are not ethanol friendly. If you have some older fuel lines that are beginning to crack you may would be ahead to replace them. Use a fuel stabilizer because if the gas sets there to long it will go through what is called phase separation where the ethanol will separate from the gas. The biggest trouble is water it will really separate and make a mess.

2008-06-29 11:58:49 by Jared C

Price: $299.99 $289.00

Height adjustment is 1-Inch to 4-Inch
Non-CARB compliant/not for sale in california
3-in-1 Ready: mulch/bag/side discharge - side discharge requires additional part from manufacturer

I am trying to get a replacement engine and want to know which engines will be a direct bolt replacement for a Lawn Chief 540 riding mower.

Go to Briggs & Stratton.com and ask them what they recommend. There are so many models of B&S engines, it is best to ask the experts at B&S.

2007-05-09 22:01:55 by pyratemate

Price: $299.95 $255.99

3-in-1 cutting system--mulch, rear bag, and side discharge
7021P is compliant for the state of California
21-inch, gas-powered push lawn mower with 160cc Honda GVC160 engine, ideal for smaller yards

Murray, Inc. Lawn Mower - Model 20406x9B with B & S Engine. Filled gas tank and all gas began to drip out right by the little hose/plastic or rubber leading to the engine. It emptied the gas tank.

it's ether 1/4 inch or 5/16 inch standard fuel line hose you can buy at the auto parts store it's not the high pressure hose just the standard fuel line hose it's sold by the foot

2007-05-18 18:33:09 by eureka2007

My lawn mower engine surges when it is at full throttle and the blades are engaged. I have put a new fuel filter and air filter in but it still happens.

Checkout the fuel system for trash and have the carb adjusted.

2008-05-12 14:17:58 by Agent Free