Posted by RN on May 02, 2017 at 10:49:51 from (205.213.104.118):
In Reply to: OT- 2 cycle engine posted by ohiojim on May 02, 2017 at 05:50:38:
Check your manual. A known issue from the early injection days- Yamaha had the oil injection at intake manifold- was a cheap way to use existing 'premix' engine, just add the variable injection pump and tank, line to intake area. The Suzis I rode had a different system, they had direct injection of oil to a main bearing and that oil went to connecting rod, other main bearing got tranny oil and cylinder had oil line also. Some oil mist to bottom of piston, ring area, wrist pin. Yamaha worked, was cheaper used more oil- Suzi and Kaws used less oil, met emission standards but had about half way to 4 stroke in crankshaft, machining for oil channels. Racing use was wire oil pump full open on Suzi, no premix- if in emergency say broken oil pump premix could be used 25 to 32:1 but only to 1/2 throttle for short time- crankshaft bearing at risk. A guess- outboard engine has one main bearing part sealed for the direct oil injection that also does connecting rod, other main bearing is a ball thrust bearing with open to inside crankcase getting some splash and mist from the oil that first did the main bearing, connecting rod big end. Vertical crank, the open bearing is at bottom to get trickles of oil. Premix will lead to upper crankshaft bearing failure followed by connecting rod bearing close second. Some later Lawnboys had this pattern crankshaft injection- Suzi patents expired or nominal license. First series didn't have the low oil ignition ground for empty oil tanks- rods went through sides when run low on oil- even with premix. RN
Upload one or more videos to your post. Photo filesizes should be less than 300K and Videos, less than 2MB. 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 - Box Plow Blues - by Tom Schwarz. One of the first implements most tractor owners obtain is the box plow. For very little money, this piece of equipment promises to plow and flatten any hill or vale on your ranch road or farm. At least that's what I thought! As simple as a box plow appears, it can be rather challenging to make work correctly. In our sandy soils of Florida, traction is king. You can never have wide enough tires or heavy enough weights to get all the traction you want … unless you own a monster tractor. U
... [Read Article]
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.
