Question about McCulloch Ms1432, 14" Chainsaw Chain 49dl 3/8" Lo Pro
I have a McCULLOCH MS1432, took it apart to replace fuel lines, now, it starts and idles fine, but, the trigger works in reverse now, I have to pull down to the trigger to engage the throttle lock, all parts seem to be in the right place, unless I'm missing one, not sure how this could happen. Now all I get is idle or full throttle when pulling down on trigger. Keeping me up at night trying to figure this out, any ideas???
It sounds like something got switched in the reassembly. It happens. Here is the service manual to try and figure it out. Let me know if that helps, or you need some more help. Good luck.
Service Manual McCulloch MS1432
Posted on May 14, 2014
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Posted on Jan 02, 2017
SOURCE: 39cc McCulloch chain saw
I have the same exact saw as you and I was having the same troubles except I had to keep pumping the primer bulb to keep it running. I didn't want to go by a new saw because I knew I could fix it, as I am skilled in small engines, but have never actually taken a chainsaw apart. I dug into it and found that the fuel line that comes out of the side of the carburater and leads into the fuel tank with the fuel finlter on the end looked cracked a little. So i trimmed the end of it off and thought that it would work. It didn't! So I took it back apart (took the carb all the way out) and found that that fuel line was totally rotted underneath the carb and every time I pressed the primer bulb, fuel shot out of a large crack where the fuel line was bent. After I replaced that everything was running great. If you have any more problems, feel free to contact me. John
Posted on Mar 07, 2009
I don't think I can help, but normal starting procedure for me is to put choke on, pull on recoil until it kicks over once. shut off choke and restart. Sounds like you have fixed almost everything & adjusted mag right. Rick
Posted on Apr 17, 2009
only way is to "mike" out the bearing areas and connecting rod journal. compare the original to the replacement. close is not good enough exact is what you want.
Posted on Oct 24, 2009
There are 4 different IPLs for this saw. Fuel detail are on multiple illustrations.
A helpful video, a few of my suggestions, and a schematic follow:
Fuel Line Replacement by SmallEng.com
Posted on Nov 16, 2009
The fuel metering needle in the lower carburetor chamber may have a bad rubber tip or the rubber diaphragm may be hard or cracked. McCullough fuel tanks vent through the cap (it should not have a gasket). Gravity plays no part in the carburetor fuel volume. Remove the spark plug (ignition off) and pull the engine through a few times without the choke on, but the throttle wide open to remove excess fuel in the crankcase (no smoking during this procedure). Make sure the plug is dry when you put it back. Hope this helps!
Posted on Apr 19, 2010
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