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Carb Help


JeffN

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I have a 10HP Briggs that I am having problems trying to get running. It will turn over and start but it will idle really fast and if I move the throttle to a slower speed the idle slows but it runs really rough. Then it will just die and then I will not be able to get it started again for quite awhile. Is there some initial adjustments to the carb I can make to just get it to run or is it even a carb problem at all? Thanks for your help.
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Jeff, Just try turning both the high speed adjustment screw and the low speed one both in finger tight and then back them both out to 1-1/2 turns and fine tune them from there and see what happens. Ok someone take it from here "ok". Let us know how you make out "good or bad". >>->happyjack<-<<
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That is very common to happen. Before you turn the mixture screws out 1 1/2 turn, there is another set screw and it is located on the throttle for the governor linkage of the carb. If it idles to fast, turn that screw counter clockwise until the engine boggles down. If that works and the engine seems to be running fine, then adjust your mixture screws for your high and low speed. That should work. I had this problem on my 1966 Simplicity Broadmoor 717. I had put a synchro-balanced engine on it because it was a better buit motor then my original one, and when i started it, she idled pretty high, so i just turned the idle screw on the left of the carb. and turned it counter clockwise until it boggles down to a correct RPM. That should only be your problem. Before you adjust mixture screws, check that idle screw on the left of the carburator first. Clockwise would give it more of an RPM and counter clockwise would give it less of an RPM. Hope this will help your tractor run correctly, good luck.
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I think I know why the engine would just sputter out after a bit. I think it was starving for fuel. I poured a little gas down the carb and it would start although the idle was way high then it would die and I couldn't get it started. So I poured a bit of gas in the carb again and it started. I think I found out one problem but still need to work on the carb adjustments. I was also wondering if when you attach the throttle cable to the engine if there is any trick or certain measurement. I just made sure the choke would close when it was on choke and then tightened the screw on the governor plate. Any hints. Thanks for all of you help.
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