Posted by docmirror on June 14, 2018 at 07:45:07 from (107.213.165.255):
In Reply to: 40:1 or 50:1 gas mix posted by old560 on June 14, 2018 at 07:10:19:
Quoting Removed, click Modern View to see
Use the 40:1 in that weedeater. Although oils have improved, and machines have become more tolerant of less oil mix, it may be an older machine that was designed for 40:1. If you use 50:1 it will work well at idle and low power but may overheat at high output.
Most of the remaining 2 stroke engines out there(except small weedeaters, blowers) use oil injection with a variable ramp mixture set by throttle. Yamaha 2 stroke jet skis set about 60:1 at idle, and gradually increase the ratio to 35:1 at full throttle where upper cylinder lubrication demands are greater. (they aren't made anymore, all 4 stroke now)
Back in the 50s, mix ratios were much higher. 2 stroke drone engines from McCulloch were 20:1. Of course the oil wasn't very good back then so they needed a lot.
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 - Farmall 460: That's My Girl - by LeAnn R. Ralph. How many sounds can you think of that are as familiar to you as your own breathing? What about the hum of your refrigerator? Or the thump of your clothes dryer? Maybe the engine of your car? You hear those sounds every day, and you don't think much about them, do you. I can think of a few common, ordinary sounds in my daily life, too.
... [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.
