Dripping gas out the weep hole is normal following a failed start, or sometimes after a shut down, but it should stop after a few drops. If it continues, or gets worse as it sits with the fuel valve open, the carb is flooding.
Flooding is usually caused by trash in the needle valve. If the tank is contaminated, or flaking rust, it will get in the needle valve and hold it open. It only takes a tiny speck to cause it to leak.
Be sure the screen is in place in the sediment bowl. Adding inline filters can have mixed results. Gravity systems don't play well with paper filters, too restrictive.
Something to try, close the fuel valve, drain the carb or run it empty, then open the fuel valve. Sometimes the inrush of gas will flush out the needle valve.
How is the air cleaner? If there is a wire mesh inside the canister, it needs to be periodically cleaned. If packed with dirt it will be restrictive. Also look for mud dobber nests, mouse nests.
Once the flooding is corrected (if present) a way to get the main jet close to adjustment, with the engine up to temperature, everything else tuned and functioning well, idle the engine down, open the throttle quickly, listen for the response. Start leaning (turning the high speed adjusting screw in) 1/4 turn at a time. Repeat the test until the engine falters on acceleration, then back it out, repeating the test until it will take sudden throttle without hesitation. A puff of black smoke is normal. That will get you in the ball park, it may need fine adjusting depending on the load, temperature, humidity, etc.
Upload one or more videos to your post. Photo and video filesizes should be less than 5MB. Formats allowed are gif, jpg, png, ogg, mp4, mov, and avi. Be sure to use filenames without spaces or special characters, and filetypes of 3 digits lower case.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - Tuning-Up Your Tractor: Plugs & Compression Testing - by Curtis Von Fange. The engine seems to run rough. In the exhaust you can hear an occasion 'poofing' sound like somethings not firing on all cylinders. Under loaded conditions the tractor seems to lack power and it belches black smoke out of the exhaust. For some reason it just doesn't want to start up without cranking and cranking the starter. All these conditions can be signals that your unit is in need of a tune up. Ok, so what is involved in a tune up? You say, swap plugs and file the points....now tha
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
