Welcome! Please use the navigational links on your left to explore our website.

Company Logo Shop Now
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 
Marketplace
Classified Ads
Photo Ads
Tractor Parts
Salvage

Community
Discussion Forums
Project Journals
Your Stories
Show & Pull Guide
Events Calendar
Hauling Schedule

Galleries
Tractor Photos
Implement Photos
Vintage Photos
Help Identify
Parts & Pieces
Stuck & Troubled
Vintage Ads
Community Album
Photo Ad Archives

Research & Info
Articles
Tractor Registry
Tip of the Day
Safety Cartoons
Tractor Values
Serial Numbers
Tune-Up Guide
Paint Codes
List Prices
Production Nbrs
Tune-Up Specs
Torque Values
3-Point Specs
Glossary

Miscellaneous
Tractor Games
Just For Kids
Virtual Show
Museum Guide
Memorial Page
Feedback Form

Yesterday's Tractors Facebook Page

Related Sites
Tractor Shed
Ford 8N/9N Club
Kountry Life
  
Tool Talk Discussion Forum

Chainsaw issue

Welcome Guest, Log in or Register
Author  [Modern View]
hellpig

02-21-2021 16:45:40




Report to Moderator

Husky 445, has always started 2nd pull.

Fired it up the other day, let it warm up a minute.

Won't go past about 1/2 throttle, even if you ease or sneak up on it.

Will idle without skipping a beat for 10 minutes, and beyond.

Changed air filter, but it was clean.

No carbon buildup in exhaust, but cleaned it anyway.

Changed fuel filter.

No difference. Primer bulb staying full, and light push as try to rev does nothing.

Does rev all the way when first started cold, but then, not past half.

Thoughts?

N

[Log in to Reply]   [No Email]
davyfireball

02-25-2021 09:54:49




Report to Moderator
 Re: Chainsaw issue in reply to hellpig, 02-21-2021 16:45:40  
I have a Husqvarna the carb got messed up in it. I ordered a new one from Amazon cost me $12 and it runs like new



[Log in to Reply]  [No Email]
DelMn

02-24-2021 12:12:38




Report to Moderator
 Re: Chainsaw issue in reply to hellpig, 02-21-2021 16:45:40  
Clamp it in a vice. You need 3 hands to do this. start up and run it up to where it about to bog down, then use your thumb to "thumb choke" into the carb. This will seal off all air from coming into engine. Let up when the engine is about to shut off. Do this several times. you may want to open the low and hi speed jets about a quarter of a turn as well. What this does is pumps a lot of gas past the needle valve and jets thus cleaning it. Did i say remove the air cleaner first? It is a cheap attempt to fix.

[Log in to Reply]  [No Email]
busboy

02-23-2021 14:36:48




Report to Moderator
 Re: Chainsaw issue in reply to hellpig, 02-21-2021 16:45:40  
Make sure the fuel lines are good. look close where they go into the tank



[Log in to Reply]  [No Email]
busboy

02-23-2021 14:34:46




Report to Moderator
 Re: Chainsaw issue in reply to hellpig, 02-21-2021 16:45:40  
Make sure the fuel lines are good. look close where t5hey go into the tank



[Log in to Reply]  [No Email]
t.r.k.

02-23-2021 09:06:29




Report to Moderator
 Re: Chainsaw issue in reply to hellpig, 02-21-2021 16:45:40  
Have you done a compression test? Husqvarna saw engines need to develop about (at least) 135 psi to run well.

Check your fuel line, its pretty common for those to get pinholes in the fuel line between the tank and the carburetor. A pressure/vacuum tester will tell the story pretty quickly, but don't go over 7 psi, much above that will push the needle valve in the carb. open. Below 7 psi it should hold pressure.

After that, try adjust the carburetor. The rear screw is for the high speed circuit. If it takes more than 1/2 turn of the screw something else is going on. Either the carburetor is plugged or its not getting fuel for some other reason. As already been stated, it could also be an air leak that is leaning the mixture out.

[Log in to Reply]  [No Email]
hellpig

02-23-2021 14:24:43




Report to Moderator
 Re: Chainsaw issue in reply to t.r.k., 02-23-2021 09:06:29  
Thanks.
What gets me is, it will scream to fill rpm on a cold start, but after a couple minutes, will not go past half.
Even if I push primer bulb a little.
Or shut off and restart.

Which makes me think maybe coil?
Won't get a chance to fool.with it sgain for a few days.
Thanks to all.



[Log in to Reply]  [No Email]
showcrop

02-23-2021 04:22:41




Report to Moderator
 Re: Chainsaw issue in reply to hellpig, 02-21-2021 16:45:40  
My Husky was having worsening starting problems so I was on Jack's to order a carb kit and there was a complete carb for $2.50 more. Only around $23.00.



[Log in to Reply]  [No Email]
cjunrau

02-22-2021 17:41:46




Report to Moderator
 Re: Chainsaw issue in reply to hellpig, 02-21-2021 16:45:40  
I would take the air filter off and when you have the throttle wide open spray a little gas in the carb. If she screams you know it is fuel not getting in. Also make sure the linkage isn't falling apart somewhere and getting caught up somewhere.



[Log in to Reply]  [No Email]
Russ from MN

02-22-2021 15:23:22




Report to Moderator
 Re: Chainsaw issue in reply to hellpig, 02-21-2021 16:45:40  
Were you able to adjust the high speed jet?



[Log in to Reply]  [No Email]
hellpig

02-22-2021 17:05:18




Report to Moderator
 Re: Chainsaw issue in reply to Russ from MN, 02-22-2021 15:23:22  
Not yet, couldn't find my little splined driver



[Log in to Reply]  [No Email]
Russ from MN

02-22-2021 18:19:25




Report to Moderator
 Re: Chainsaw issue in reply to hellpig, 02-22-2021 17:05:18  
I have found that a piece of 1/4 od plastic tubing works ok, just shove it on the splined screw. Although some of them have stops to prevent them from being opened up too much and smoking.



[Log in to Reply]  [No Email]
indiana george

02-23-2021 06:22:02




Report to Moderator
 Re: Chainsaw issue in reply to Russ from MN, 02-22-2021 18:19:25  
If your chainsaw has those plastic tube cover around the adjusting screws,you can pull those out with a needle nose pliers, so once you pull them out you can adjust the carb as much as you want.Those plastic tube covers have a stop so you only can turn the adjusting screws so much.



[Log in to Reply]  [No Email]
hellpig

02-22-2021 13:25:35




Report to Moderator
 Re: Chainsaw issue in reply to hellpig, 02-21-2021 16:45:40  
New plug didn't do it. Same as before, screams for 2-3 minutes or so, then won't go past 1/2 throttle.
Choke partially on same.
Bulb stays full, slight push doesn't help, so thinking not fuel issue.

May try to find some Husky fuel line ( have had issues with generic line in other Huskies) and if that don't do it, maybe try coil?

Appreciate all the help



[Log in to Reply]  [No Email]
stevec1031

02-22-2021 10:27:29




Report to Moderator
 Re: Chainsaw issue in reply to hellpig, 02-21-2021 16:45:40  
My Echo had a bad crankshaft seal that actually effected the running performance. Changed it problem solved



[Log in to Reply]  [No Email]
Determined

02-22-2021 06:25:01




Report to Moderator
 Re: Chainsaw issue in reply to hellpig, 02-21-2021 16:45:40  
Different animal but I have a Stihl 038 that did the same thing a new spark plug was all it needed.



[Log in to Reply]  [No Email]
uncle murph

02-25-2021 14:27:46




Report to Moderator
 Re: Chainsaw issue in reply to Determined, 02-22-2021 06:25:01  
I would second that on the plug,dont know why but quite often its the problem. I dont know why people want to start adjusting the carb,unless someone tinkered with it shouldnt need adjustment.



[Log in to Reply]  [No Email]
ss55

02-22-2021 04:59:34




Report to Moderator
 Re: Chainsaw issue in reply to hellpig, 02-21-2021 16:45:40  
Gas blowers and string trimmers will act that way when an old fuel line has cracked or split.



[Log in to Reply]  [No Email]
Steve@Advance

02-21-2021 19:37:56




Report to Moderator
 Re: Chainsaw issue in reply to hellpig, 02-21-2021 16:45:40  
Does partial choke help?

Did you try backing out the high speed screw?

Could be weak spark.

Usually it's fuel problems. The metering diaphragm, the one that operates the needle valve, gets old and hard. It must be very soft and flexible to work properly.



[Log in to Reply]  [No Email]
glennster

02-21-2021 18:47:28




Report to Moderator
 Re: Chainsaw issue in reply to hellpig, 02-21-2021 16:45:40  
with the saw idling, spray some carb cleaner at the carb base gasket and see if there is a change. may need a new gasket, or the gasket on the fuel pump side of the carb is bad. just went thru this with my husky 141.



[Log in to Reply]  [No Email]
Gary Reif

02-21-2021 18:43:53




Report to Moderator
 Re: Chainsaw issue in reply to hellpig, 02-21-2021 16:45:40  
Does it have a spark arrester that might be clogged? Just a thought.



[Log in to Reply]  [No Email]
rustred

02-21-2021 18:11:29




Report to Moderator
 Re: Chainsaw issue in reply to hellpig, 02-21-2021 16:45:40  
i would try another spark plug to eliminate that. if your saying you push the primer and it dont speed up then it must be electrical.



[Log in to Reply]  [No Email]
BRIAN DAN

02-21-2021 17:52:37




Report to Moderator
 Re: Chainsaw issue in reply to hellpig, 02-21-2021 16:45:40  
Check the fuel line in the tank and back to the carb. It might be broken or have a pin hole in it.
Brian



[Log in to Reply]  [No Email]
Russ from MN

02-21-2021 17:35:59




Report to Moderator
 Re: Chainsaw issue in reply to hellpig, 02-21-2021 16:45:40  
I don't think it's the sparkplug, but that's a cheap and easy thing to do, and you should have a spare anyhow! The next thing I would do is put some Seafoam in it. I suspect the high speed jet is partially plugged, if you can adjust it open it up a little until it runs properly, and after the Seafoam cleans out the jet you may have to set it back near where it was. Last summer my cousin was helping me cut some wood with a new Husky, and it really sounded lean. Good luck! Let us know what the outcome is.

[Log in to Reply]  [No Email]
matthies

02-21-2021 18:17:50




Report to Moderator
 Re: Chainsaw issue in reply to Russ from MN, 02-21-2021 17:35:59  
Gonna agree with Russ, but just mix up some new gas and try it, then ad some seafoam.



[Log in to Reply]  [No Email]
hellpig

02-21-2021 18:40:27




Report to Moderator
 Re: Chainsaw issue in reply to matthies, 02-21-2021 18:17:50  
Mixed fresh fuel, and added seafoam, let it idle10 or 15 min.
Rain it some more today, still dead past 1/2 throttle.
What confuses me is cold start, it's all scream for a few seconds, then lay down.
Thought maybe a week coil, but revs fine when first started.



[Log in to Reply]  [No Email]
old

02-21-2021 19:47:05




Report to Moderator
 Re: Chainsaw issue in reply to hellpig, 02-21-2021 18:40:27  
The longer it runs a bad coil will show its self. Coils as they are used get hot and in doing so if there going bad the bad shows up the longer it is run



[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


TRACTOR PARTS TRACTOR MANUALS
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 ]

Home  |  Forums


Today's Featured Article - History of the Cockshutt Tractor - by Danny Bowes (Dsl). The son of a very successful Toronto and Brantford, Ontario merchant, and himself quite an entreprenuer, James G. Cockshutt opened a business called the Brantford Plow Works in 1877. In 1882, the business was incorporated to become the Cockshutt Plow Company. Along with quality built equipment, expedious demand and expansion made Cockshutt Plow Works the leader in the tillage tools sector of the farm equipment industry by the 1920's. ... [Read Article]

Latest Ad: Farmall 350 , 450 and 560 utility fenders. Excellent condition original. Can send pictures if interested [More Ads]

Copyright © 1997-2021 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