Chainsaw stalls in idle, plug seems to be fouling

Reply

  #1  
Old 10-21-17, 03:02 PM
Member
Thread Starter
Join Date: Jan 2015
Location: USA
Posts: 426
Chainsaw stalls in idle, plug seems to be fouling

I've had a McCulloch MS1839 chainsaw for years. Recently the chainsaw has become difficult to start. I take out the spark plug, clean it off and it starts easily and runs as long as I hold the trigger slightly. At idle, it stalls after 15-30 seconds. Then I wipe the plug and go through it again.

The problem seems to the spark plug getting wet from the gas / oil mixture.

Suggestions, please.
 
Sponsored Links
  #2  
Old 10-21-17, 03:11 PM
Member
Join Date: May 2006
Location: Iowa!!!!!
Posts: 3,728
Most of those carbs have a L and a H screw for High rpms and low rpms. You might try turning the L screw in a little at a time until it clears up, if it does. Also check the choke to make sure it's coming off.

As the carbs age they can develop leaks and need to be rebuilt or replaced.
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes