Briggs Carburetor dies when accelerating

T

tim4

Active Member
I am working on a briggs tiller model 130297 type 301501 code 88090207 and I replaced the tank gasket and the diaphram and it will idle fine when I adjust the needle valve but when I try to speed it up it stalls. I made sure the long tube was clear and I cleaned the hole in the side of the part that goes in the fuel pick up are. If I move the throttle slow toward high speed it will pick up speed for 2 seconds then stall. If I turn the needle valve out it will pick up speed if I move the throttle and sometines stay running but it won't idle smooth.
 
Another thing, when I get a 30 year old with this style carb/tank setup, I many times find the tank warpped. Tank most times is NLA so I seal around the carb base with a good auto body sealer.
 
Might try two gaskets.

Fill the tank completely FULL of fuel and report back? (let us know if it makes any difference in the engine symptoms????)
(I have a reason for suggesting such)
 
Befor I replaced the gasket to block I noticed there was 2 gaskets on there so I scrapped them and tried 1 gasket. It speeds up slightly but full throttle it dies.
 
On the carburetor how many holes should be in the small pickup that fits in the shallow hole on the fuel tank.
 
Have you taken any time to read the section on carbs in the manual I posted??? I’ll bet not. If you find a picture of the mounting gasket, it should answer your question. To help you out it is in section 3, starting around page 29.
 
Rivets said:
Have you taken any time to read the section on carbs in the manual I posted??? I’ll bet not. If you find a picture of the mounting gasket, it should answer your question. To help you out it is in section 3, starting around page 29.
Click to expand...
I tr ied reading the manual but my screen reader does not read it properly
 
That’s a new one on me, it’s just a pdf file. Everything I have is in that format. Try searching for “Briggs pulsa jet tank mounted carbs” or “Briggs L-head repair manual” and you should find material to help you out.
 
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