Question about Briggs & Stratton Garden
148cc engine Model 09T602 5019 B1. Replaced diaphragm under carburetor because engine had no power and barely would run. Now it runs at higher rpm but runs rich and runs rough..getting too much fuel now it seems.
Posted on Apr 25, 2013
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Posted on Jan 02, 2017
Change your air filter, spark plug, fuel filter, and oil. Then make sure the gas is fresh. Gas starts going bad after a month. Spray carb cleaner in hole underneith the fuel filter. Oh yea dont put more than 20oz of oil in it.
Posted on Mar 27, 2009
I always replace the air filter if its a paper element, and even if its a foam element I replace it rather than clean it. That said, engine stumbling is rarely and air flow problem - but it could be, so having a new filter assures no air restrictions.
I would drop the carbuerator bowl. On the bottom of the carb, near where the fuel line comes into the engine, should be a nut. Removing this nut allows the bowl to drop off the carb. Some engines the bowl screws off, you will have to look at the bowl. Often the bowl has sediment or sludge buildup inside. Cleaning the bottom of the bowl can prevent that sludge/sediment from plugging the intake tube. Even on newer mower models this is a common problem, the gas line tubing interior breaks down and the inside of the tubing can start degrading - ending up in the bowl as sludge.
After cleaning the bowl, I would add one ounce of fuel line cleaner to a full tank of fuel and run the entire tank of fuel. This will clean any deposits or "varnish" from the interior carb parts. Doing this and the first step will assure your carb is clean and functioning.
If that doesn't help, then I would look at the spacing between the magneto and coil assembly. If you want to do that I'd like you to write down all the model numbers and serial numbers on the engine nameplate, that way I can give you specific directions.
Hope this helps,
Posted on Mar 29, 2009
look by the carboreter and there is a little screw with a spring. turn the screw a half turn and try to start it, then try another half turn, and keep expirementing.
Posted on Jun 13, 2009
On many Tecumseh engines, there is a crankcase breather located under the flywheel. It has a cork gasket to seal the top plate of the breather. Either the rubber breather housing is cracked, or the cork gasket needs replaced.
Posted on Nov 08, 2009
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