Posted by pburchett on April 16, 2011 at 18:57:29 from (216.135.52.72):
I inherited an old blue Homelite Super Xl Automatic Oiler chainsaw. It had bad rod bearings so I replaced the rod bearings, honed the cylinder, put in new rings.
After the rebuild it will start and idle but not rev up. It will bog down when wide open throttle is applied but will not rev up or even pull the chain across the bar. I took the chain off but still no luck. As it runs it spits a lot of gas out the muffler. So much gas comes out the muffler it will wet the ground it is sitting on. The gas is new and the oil is the correct mix.
It has had the points taken out and an electronic ignition module installed, before I got it. I installed a new plug, and it seems to be getting enough fire as it arcs a blue spark at a .025 gap. I have put a ¼ inch gap in an old spark plug and it will jump an orange spark across that.
It has plenty of compression and the muffler is open and has no restrictions. The fuel line is new and the filter in the tank is good as I have cleaned it to make sure is not restrictive.
I have rebuilt the SDC Walbro carburetor. It has new everything even changed the welsh plugs and I am 100% certain it has no restrictions. I have adjusted the metering lever that connects to the needle valve and diaphragm in several combinations which include the factory setting, as well as rich and lean conditions. Could I have a bad carb?
So far in about 100 times of me starting the chainsaw it has reved up to wide open throttle for 15-20 seconds or so a grand total of 5 times and only when I feather the throttle.
Does anyone have any suggestions besides using it for a parts?
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 - History of the Nuffield Tractor - by Anthony West. The Nuffield tractor story started in early 1945. The British government still reeling from the effects of the war on the economy, approached the Nuffield organization to see if they would design and build an "ALL NEW" British built wheeled tractor, suitable for both British and world farming.
... [Read Article]
Latest Ad:
Oliver 550 Diesel runs like a watch three point hitch pto engine gone threw about two hundred hours ago nice clean tractor
[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.
