I have a Briggs 17.5 IC OHV lawn tractor. It seems to have too much compression for the starter to turn it over initially. I have tried 2 starters. If I roll the crank past top dead center it will sometimes start. What could cause this problem?
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Is how solved my problem like this. When have this problem again. Pull the spark plug. See if have in there. I install a fuel shut-off. Turn it when not running. No more turning crank.
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Disconnected, dirty or fouled spark plugs are common causes for engines that won`t start. For small engines, spark plugs typically need to be replaced every season or after 25 hours of use. You should also check to make sure the spark plug gap is set correctly.
If your Briggs & Stratton engine has a spark but won`t run, then it is most likely a problem with the gas or air intake in the engine. The spark on the spark plug ignites the gas in the piston, but if the air filter is clogged or the gas can`t flow, then the engine won`t start.
A dirty carburetor is one of the most common causes for a lawn mower not being able to start after sitting unused for months or years at a time.
Some of the B&S auto choke carburetors tend to supply too much fuel to the cylinder when hot starting; this floods the spark plug, causing a no start. They have since modified the carburetor. So if you have an auto choke, Briggs, with the hot start problem, go ahead and swap out the carburetor.
Your lawn mower turning over but not starting due to several reasons, such as a faulty or disconnected plug, a disconnected spark plug wire, a clogged air filter, or a contaminated fuel tank. A faulty carburetor, a dirty cutting deck, or a dysfunctional flywheel brake can also cause this.
Answer: The most common source of trouble when the engine cranks but won`t start is the ignition or fuel system. Make sure you got enough fuel pressure and good spark. Also, a faulty sensor (crankshaft position sensor or camshaft sensor on some models or throttle position sensor) may cause this problem as well.
If the ignition coil does not have spark, it`s time to check its wires. Use a test light to check the continuity on the signal wire and power wire on the ignition coil. If both wires are functional but the coil fails to produce spark, the ignition coil or the ignition control module is bad.
If a mower is hard to start, it may be the result of a dirty carburetor and/or a clogged air filter. Use a screwdriver to remove the carburetor and clean any dirt out of it with a rag. Clean the air filter or replace it if it`s disposable.
A damaged fuel system is the most common reason an overheated engine may not start. A faulty system can cause the motor to get hot and produce heat and vapor, which creates difficulty for the fuel to circulate in the engine. Blown head gasket. A blown head gasket could also be a significant cause of overheating.
A Dirty Carburetor
Can Cause a Lawnmower To Start Then Die
By far, the most common issue that causes a stalled motor is a dirty carburetor. The carburetor on your engine is the thing that draws in air and mixes it with the fuel. Contrary to what the movies might make you think, gasoline itself is not very flammable.
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Help with the lawnmower. It starts and stalls after a few seconds
Check the fuel system clean the carb .
Briggs and stratton 5 hp engine won't start – Parks Optical Briggs And Stratton Engine Intek 10.5hp Lawn Mower
An engine not starting can have many causes but it is usually due to lack of fuel being sucked into the engine or no spark.Remove spark plug. It should be damp, if it is wet, the engine has been flooded and should be left for a few minutes for the fuel to evaporate. Replace lead on the plug and hold the threaded part against the engine somehow. Make sure you don’t hold the lead in your hand!Pull start the engine and ensure there is a spark.
What would cause mower to die after starting?
Your carb. is gunked up. get a can of starter fluid and a helper. have the helper spray some starter fluid into the air intake to keep it running after it starts. Once it runs for a couple of minutes it will be ok. J.
17hp b/s intek OHV after 30 min mowing starts running rough
If gas is in the oil the needle and seat in the carb are bad or some thing in it. the gas will go in to the crank case and load the cylinder with gas. you can take the carb apart to see if something is in the seat. or replace the carb
Hard hitting on compression stroke when starting
If its the 21 or 20 hp OHV single briggs. Adjust vales to .004. The cam also has a decompression that breaks, Causing hard start. So if valves are adjusted and u still have problem. “Could” be cam, remove bottom cover and inspect cam. new cam about 75 to 100 bucks.
16.5 HP briggs and Straton, white smoke is heavy when you first start the engin , after a few minutes it stop smoking. I think the engin has OHV Gene
My Briggs & Stratton gives off a puff of blue smoke when I first start it. When in idle it will REV up & down and give an ocassional backfire.
Sounds like you may have too much oil in the engine. Check your oil level.
Hi there, quick question, there is a black and grey wire on the 13.5hp briggs and stratton, i am unsure which is the earth and which is the power?
The grey one should get power when the key is turned on. This opens the solenoid valve on the carb and lets fuel in. The black one should get earthed when the key is turned off, this shorts out the coil and stops the spark. Aussie Steve.