Home |
Search |
Today's Posts |
#1
|
|||
|
|||
I need advice on 4.5 HP Briggs & Stratton Troubleshoot
I very recently bought a brand new walk-behind mower powered by a
Briggs/Stratton 4.5 hp engine. The first time I cranked it (pullstarter), it cranked on the first pull. The "first crank" operation continued until I cleaned the foam airfilter (warm soapy water and rinse thoroughly). I got the clean filter dry first by squeezing out all excess water and then by continuing to squeeze it in a handful of dry paper towels. When I replaced the filter it was very slightly damp. The engine cranked on the first pull. It ran just fine for a full minute then died. I cranked it again on the fourth or fifth pull. Same result. One minute of smooth opp, then it died. I've just cranked it for the fourth time with the same result. If the foam airfilter wasn't perfectly dry, would enough moisture have accumulated somewhere to cause this problem? If so, how do I remove a few droplets of water from the system? I have run this engine for less than 3 hours in very dusty conditions. The fuel tank vents are clear. |
#2
|
|||
|
|||
I believe the recommended cleaning for these filters is to clean them
thoroughly and let them dry. Once dry they should be lightly oiled. It's quite possible that residual moisture in the filter got sucked into the engine and basically shorted out the spark plug. My advice would be to remove the spark plug and clean it and make sure it's dry. Pull the engine over a few times with the plug removed to vent out anything else in the cylinder and replace the plug. If the filter was supposed to be lightly oiled, you should do that as the oil is sticky and traps the dust that the sponge can't by itself. Robert John L. Jordan wrote: I very recently bought a brand new walk-behind mower powered by a Briggs/Stratton 4.5 hp engine. The first time I cranked it (pullstarter), it cranked on the first pull. The "first crank" operation continued until I cleaned the foam airfilter (warm soapy water and rinse thoroughly). I got the clean filter dry first by squeezing out all excess water and then by continuing to squeeze it in a handful of dry paper towels. When I replaced the filter it was very slightly damp. The engine cranked on the first pull. It ran just fine for a full minute then died. I cranked it again on the fourth or fifth pull. Same result. One minute of smooth opp, then it died. I've just cranked it for the fourth time with the same result. If the foam airfilter wasn't perfectly dry, would enough moisture have accumulated somewhere to cause this problem? If so, how do I remove a few droplets of water from the system? I have run this engine for less than 3 hours in very dusty conditions. The fuel tank vents are clear. |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Need Used Briggs and Stratton Engine for Rototiller | Lawns | |||
Briggs & Stratton Replacement Engines vs rebuilding existing engine | Lawns | |||
briggs&stratton info | Lawns | |||
Small tractor With "Briggs@Stratton"EngineType "Farmers Boy" | Gardening | |||
12 Hp Briggs & Stratton Idle Problems | Lawns |