Run problem on old Briggs and Stratton Troy Bilt tiller engine.
Engine will start if choke is closed, but dies when choke is opened. It will continue to run with choke almost closed for a short time, then it dies. I've verified that there is not a problem with the fuel line or filter. When the line is disconnected from the carburetor, fuel flows freely. This tiller is an early version build date in the early to mid seventies.
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PP dead on. Remove carb and clean proper. Avoid ethanol fuel if u can.
- de Will Stagg
I had the same thing,,,, turned out that the carbs jets were clogged with junk. cleaned them out , replaced all the gaskets and ran like new afterwards.
- de E-paw
I gave the carburetor a good cleaning yesterday. Everything looked good with the exception of the needle and seat deal for high speed fuel flow which had some crud in there. I cleaned it up and blew out all of the passages. I had to go to the sawbones for nasal surgery no sooner than getting done with that and am now not supposed to do anything as physical as pulling on the starter rope or lifting anything over fifteen pounds for the next five days! Murphy's law strikes again! That bugger never leaves my side! Thanks for the tip!
- de Robert Hanna
Oh yeah, I found out why it would run with the choke closed all the way! It turns out that a small bolt on the bottom of the carburetor that holds the throttle bracket had fallen out. I had wondered how it was gettin air to run with the intake completely blocked with the choke plate being closed all the way. I'm hoping that I can simply crank it up and adjust the needle!
- de Robert Hanna