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briggs and stratton wont stay running


charlie0311's Avatar
Member

Join Date: Jun 2010
Posts: 1
VA

06-08-10, 03:32 PM   #1  
briggs and stratton wont stay running

I have a briggs and stratton on a weed eater lawn mower 22" cut 4.5 hspr.
model 10H902
type 0333 E1
code 05112853
The throttle increases then decreases. Changed the oil and took the tank and carb off and cleaned it as well as the air filter. It'll start but will only run for a couple of minutes if that. The primer works. Also redid the pull cord now it wont go all the way back in. Gives me just enough to start it. Please help I'm going crazy.
It would be nice to get a new lawnmower for father's day but then again it would be nice to keep that money in my savings. Please help.

 
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geogrubb's Avatar
Member

Join Date: Jun 2006
Posts: 2,333
MO

06-08-10, 05:55 PM   #2  
You need to install a new diaphram kit, it is Briggs part # 795083 or old # 495770 also Lowe's has a kit #5083 which has the same parts.
Here we go;

Remove air cleaner, there are 2 bolts that hold things together, one on the front of the tank 3/8" and one into the block 1/2", remove these bolts, now "slowly" slide the carb/tank off the intake tube and breather tube, now tilt the tank in to release the throttle linkage and waalaa the carb/tank is removed. Check the intake tube to see if the O ring seal and plastic retainer are still on the intake tube, if so remove them and re-install them into the carb. Remove the 5 screws from the carb/tank remove carb(don't loose the spring) now spray all holes, cracks and crevases in both the carb and tank surface with brake parts cleaner, remove the main screen(looks like a thimble), now with a small screwdriver pry out the main jet(carefully) and clean it, check the O ring on the main jet for damage, if it is damaged it must be replaced, reinstall the jet, it can be difficult some times to get it to snap back in place(I use the rounded end of a screwdriver handle). Remove and clean the fuel pickup stem(not necessary if the fuel tank was clean). Clean any junk/rust from the tank. Install the diaphram on the tank then the gasket(no goo or sealer) now carefully replace the carb(the spring will try to misalign the diaphram), tighten all screws a little at a time so as not to crimp the diaphram until they are all tight. Install the carb/tank in reverse order and you are done. If I missed something one of the real mechanics will correct me. Have a good one. Geo

 
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