This may sound silly but have the following question. When I go to adjust the idle mixture screw does turning it clockwise make it richer or leaner?
Same when I adjust the full throttle load screw, does turning it clockwise open up the fuel or restrict it?
300 Carb adjusting question
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300 Carb adjusting question
Shawn Agne
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Re: 300 Carb adjusting question
Turning them in makes them leaner. Out is richer. Do them slow as it doesn’t take much adjustment when you find the sweet spot.
Every home is a school, what are you teaching?


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- 5+ Years
- Posts: 777
- Joined: Sat May 07, 2016 5:13 pm
- Zip Code: 45380
- Tractors Owned: 1952 Cub w/ 184 motor (Kid)
12V with Petronix
IH 3160 Mower Deck
54 Leveling Blade
193 Plow
IH528 Trailer
Front/Rear Weights
1955 Farmall 300 (Clarence)
12V with Petronix
Woods L306 72"
1955 Farmall 100 (Thomas)
12V with Petronix
Woods L59 60"
A60 Leveling Blade
Front/Rear Weights - Circle of Safety: Y
- Location: Versailles, Ohio
Re: 300 Carb adjusting question
Thanks that is what I thought but wanted to double check.
Shawn Agne
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- Zip Code: 80807
Re: 300 Carb adjusting question
IM a newby with carb and ignition problems both, have the engine strippe down to get at the timing and
have decided the distributor is mostly whats wrong, the advance is klogged up with gunk and the springs are very week. Does anyone have the crank and cam torque settings as all the books I have (7) fail to give both! Warren on a 300U in eastern Colorado!
have decided the distributor is mostly whats wrong, the advance is klogged up with gunk and the springs are very week. Does anyone have the crank and cam torque settings as all the books I have (7) fail to give both! Warren on a 300U in eastern Colorado!
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