(800) 853-2651
SHOP NOW

Recent content by Howitzer

Yesterday's Tractor Forums
  1. H

    IH 674 gas tractor - runs like %$#@...

    When we thought the float needle was sticking, we removed the carb and blew into the carb fuel inlet (by mouth) with it upright - the float needle appeared to be sealing OK. When we inverted the carb to open the float needle, we could blow air into the fuel inlet.
  2. H

    IH 674 gas tractor - runs like %$#@...

    I'm going on what my brother tells me. He used the tractor yesterday for a few hours and he said it ran pretty well. He didn't check the plugs afterwards, I told him he should pop them out and have a look. I'll get him to take a pic. He also said he needs to change the oil as he thinks there's...
  3. H

    IH 674 gas tractor - runs like %$#@...

    When we installed the new clone carb, we didn't have the air cleaner/ducting tubing hooked up yet. We ran it with the air cleaner/ducting tubing disconnected (tractor ran quite good) and then we shut the tractor down. Within 15 seconds, a distinct fog/stream of gases slowly came out the main...
  4. H

    IH 674 gas tractor - runs like %$#@...

    Could this updraft carb just be collecting unburned fuel in the carb's throttle body by gravity and then the fuel drips out?
  5. H

    IH 674 gas - Replacement Clone Carburetor?

    When we installed the new clone carb, we didn't have the air cleaner/ducting tubing hooked up yet. We ran it with the air cleaner/ducting tubing disconnected (tractor ran quite good) and then we shut the tractor down. Within 15 seconds, a fog/stream of gases slowly came out the main intake...
  6. H

    IH 674 gas tractor - runs like %$#@...

    Well I'm warming up this post. My brother decided to purchase a new Zenith 14996 clone carb off of ScAmazon. We put it on the 674 today and it ran alot better. The problem is that when we shut it down, the carb starts to leak considerable amounts of fuel out the main air intake port. We took...
  7. H

    IH 674 gas - Replacement Clone Carburetor?

    Well I'm warming up this post. My brother decided to purchase a new Zenith 14996 clone carb off of ScAmazon. We put it on the 674 today and it ran alot better. The problem is that when we shut it down, the carb starts to leak considerable amounts of fuel out the main air intake port. We took...
  8. H

    IH 674 gas - Replacement Clone Carburetor?

    We did set the valves (when we re-did the head) a few years ago. Maybe they need to be reset, maybe there's a bent push-rod or a worn cam lobe or two.
  9. H

    IH 674 gas - Replacement Clone Carburetor?

    I will check on these questions and hopefully get the answers.
  10. H

    IH 674 gas - Replacement Clone Carburetor?

    A hotter plug might do the trick!
  11. H

    IH 674 gas - Replacement Clone Carburetor?

    The compression was apparently ok and I don't think it burns much oil.
  12. H

    IH 674 gas - Replacement Clone Carburetor?

    Thanks for the response. It's my brother's tractor, he says he tested the compression and it was ok. The plugs that foul are quite black but not overly oily. The head was re-done a few years ago. Maybe the carb float has a hole and is faulty, we will check. If we need a carb, can one get a...
  13. H

    IH 674 gas - Replacement Clone Carburetor?

    I have another related post on this topic, IH 674 gas tractor, C-200 motor. Fouls plugs constantly, tractor runs like crap. My question - we did a carb kit a while back but the tractor still runs crappy. Marvel-Schebler carb, I believe it is a TSX980SL model. Can one purchase a clone...
  14. H

    IH 674 gas - convert to electronic ignition? Worth it?

    That is one thing I'm wondering about... the condition of our distributor shaft and bushing. We'll have to inspect them. Any tips?
  15. H

    IH 674 gas - convert to electronic ignition? Worth it?

    Thanks for the discussion everyone. If we went with EI would we need a new coil, spark plug wires, distributor cap, etc?
See more
Yesterday's Tractor Forums
Buy Tractor Parts Here Buy Tractor Manuals Here

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.

Copyright © 1997-2025 Yesterday's Tractor Co.

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.

Yesterday's Tractors - Antique Tractor Headquarters
Website Accessibility Policy

Back
Top