chainsaw hard to pull


  #1  
Old 10-20-19, 05:06 AM
J
Member
Thread Starter
Join Date: Oct 2019
Posts: 1
Received 0 Votes on 0 Posts
chainsaw hard to pull

Husqvarna 435 clutch melted. once replaced pulls hard. Pulls easy with spark plug removed.
 
  #2  
Old 10-20-19, 06:25 AM
pugsl's Avatar
Forum Topic Moderator
Join Date: Mar 2008
Location: United States
Posts: 9,029
Received 76 Votes on 69 Posts
Sounds like fuel leaking in cylinder. After plug pulled does a shot of gas shoot out of plug hole wen first pulled?
 
  #3  
Old 10-20-19, 08:19 AM
M
Member
Join Date: May 2006
Location: Iowa!!!!!
Posts: 4,234
Received 20 Votes on 19 Posts
Take the chain off and see if it pulls the same.
 
  #4  
Old 10-20-19, 12:15 PM
cheese's Avatar
Forum Topic Moderator
Join Date: Jul 2001
Location: USA
Posts: 17,661
Received 56 Votes on 51 Posts
Is the spark plug wet? Sounds like gas/oil in the engine crankcase and cylinder.
 
  #5  
Old 10-21-19, 09:54 PM
D
Member
Join Date: Mar 2010
Location: Canada
Posts: 20
Received 0 Votes on 0 Posts
Back in the mid-'90s, my Dad gave me a 1970s-vintage Husqvarna 61 because it had the same symptoms as yours.

As others have mentioned, it turned out to be fluid (bar oil) leaking into the cylinder causing an increase in compression due to hydrolocking. So, I'd remove the plug, spray WD-40 in there, let it sit a while, then give it a half dozen pulls. That had the effect of cleaning out the oil and breaking up the carbon deposits. Still a bit hard to pull once I put the plug back in, but at least it started.

Did that for several years before I got tired of it. My solution was to buy a new Husqvarna with a decompression valve. My arm and shoulder both gave a sigh of relief.
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description: