Question about Garden
I have a B&S 3.0 HP-80202-1830-01 on an older sidewalk edger that starts and runs fine when cold. As the motor heats it will not run without choke. I have disassembled and cleaned the carb. All passages were clean and will pass carb cleaner and air. I have checked for air leaks by spraying wd40 and starting fluid around the carb during running - no air leaks. The carb is unusual, with no float and no bowl. Rather, it has a diaphram with spring and two "flaps" that seems to pump fuel. Once it heats up (after about 2 minutes) it will run only at part choke. Adjusting the mixture screw seems to have very little affect. Advice?
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Posted on Jan 02, 2017
SOURCE: Motor will not start
For some reason the engine is flooded. To make it start do the following: turn the choke off, hold the throttle wide open and crank it until it starts.Do not push the primer bulb first. It already has more fuel than it can burn. It will smoke more than usual until it burns out the excess fuel. You may also have a carb problem but this should allow the engine to start so it can be diagnosed.
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Posted on Mar 19, 2009
I am sorry to say this, but the compression for that type of engine should be atleast 120 psi. Remove the muffler and look at the cylinder, it is scarred beyond repair.
Posted on Apr 22, 2009
The carb sounds like a vacu-jet, very easy to rebuild. Remove it from the tank but be careful not to damage the siphon tube. Then make sure to check for foreign matter in the tank (big problem with this system), clean and flush it. The idle screw is easy, the other is set by going from idle to full throttle quickly and adjusting it just so it doesn't stumble
Posted on Apr 26, 2010
SOURCE: runs on starting fluid, not
Try spraying a little gas where you spray starter fluid. If it runs you may have to install diaphram kit. If it has a choke can get around primer not working.
Posted on Oct 01, 2010
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Reason 1 - Gasoline, like any other liquid, evaporates less when it is cold.You have seen this -- if you pour water onto a hot sidewalk it will evaporate a lot faster than it will from a cooler place like a shady sidewalk. When it gets really cold, gasoline evaporates slowly so it is harder to burn it (the gasoline must be vaporized to burn). Sometimes you will see people spray ether into their engines in cold weather to help them start -- ether evaporates better than gasoline in cold weather.
Reason 2 - Oil gets a lot thicker in cold weather. You probably know that cold pancake syrup or honey from the refrigator is a lot thicker than hot syrup or honey. Oil does the same thing. So when you try to start a cold engine, the engine has to push around the cold, gooey oil and that makes it harder for the engine to spin. In really cold places people must use synthetic motor oils because these oils stay liquid in cold temperatures.
Re ason 3 - Batteries have problems in cold weather, too. A battery is a can full of chemicals that produce electrons The chemical reactions inside of batteries take place more slowly when the battery is cold, so the battery produces fewer electrons. The starter motor therefore has less energy to work with when it tries to start the engine, and this causes the engine to crank slowly.
All three of these problems can make it impossible to start an engine in really cold weather. People either keep their cars in heated garages or use "block heaters" to get around these problems. A block heater is a little electric heater that you plug into the wall to keep the engine warm.
i hope it was convince answers
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