Outdoor Power Equipment and Small Engines - Briggs and Stratton 9J902 Carb

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View Full Version : Briggs and Stratton 9J902 Carb


mountra
05-26-08, 09:54 AM
I am stuck trying to remove this carburetor. I have dismantled the linkages and removed the 5 screws but am unable to lift the carb away from the engine block and out of the tank. The whole assembly seems to be free but wont slide back to allow me to lift it up and out. Is there something else I have to remove?
The carb is on a Yard Machine Edger. Engine# 9J902,
Model# 0368E1, Code# 05020752.

Thanks.


geogrubb
05-26-08, 01:38 PM
It sounds like you didn't remove the tank so I will post the step by step diaphram replacement and you can pick up wherever you are currently.
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. 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) with a small screwdriver pry out the main jet(carefully) and clean it, 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. 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