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Zama RB 142

Engine will start and run for a bit in full choke. When you take the choke off it goes high rpm and dies. Replaced all fuel lines, pick up and disassembled the carb and cleaned it. Same problem. What now?

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Maybe the hose or the Bulb has a pin hole in it. It will suck air.

Posted on Apr 25, 2013

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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: Engine will only run on 1/2 Choke

Hello edv40026:

Have you Checked the Exhaust Port and Muffler for Restriction?
From your Description it Sounds like the Exhaust Port or Muffler is Restricted with Carbon Deposits, the Carburetor Metering Pump Actuator Gap is Incorrect or the Compression is Low (Worn Rings/Cylinder).
>>The Following is a Basic Instruction File for Doing a Diagnostic on the Engine for this Problem. Any Input is Appreciated.
>>**Remove the Muffler and Make Sure the Exhaust Port is Clear.
>>If it is, then Try to Start the engine with the Muffler Off.
>>If it Starts and Runs Properly, then Clean the Spark Arrestor Screen in the Muffler or Replace the Muffler if Required.
>>The Following is a Basic Instruction File for Doing a Diagnostic on the Engine for this Problem. Any Input is Appreciated.
>>**Remove the Muffler and Make Sure the Exhaust Port is Clear.
>>If it is, then Try to Start the engine with the Muffler Off.
>>If it Starts and Runs Properly, then Clean the Spark Arrestor Screen in the Muffler or Replace the Muffler if Required.
Is the Fuel Line from the Fuel Filter Staying Full of Fuel?
The Carburetor Metering Jet Actuator is Set so the Pump Diaphram Dowl is Just Touching the Actuator Arm. These Components are Located Under the Cover with 4 Small Screws Holdong it to the Carburetor Body.
Please, Do Not Hesitate, If you Hit a Snag or this Does Not Correct the Problem, I am Here if You Require More Assistance.
Hope this Helps. Let me Know What Happens, Please. May the All Mighty Bless You and Yours. Be Safe and Be Happy. Thanks.

Good Luck

Respectfully

jbridger (John)

Posted on May 13, 2009

#1 Taper
  • 1040 Answers

SOURCE: After rebuild only runs on half choke.Adjusting screw doesn't help

The rebuild you did is correct, but did you clean the small ports in the carb.? I use a Den Tek Brush (used for cleaning teeth). They work great for this job. You may also want to check the small screen in the carb. The smallest of particles can cause this problem.

Jim

Posted on May 26, 2009

  • 112 Answers

SOURCE: Engine starts but dies when I pull throttle trigger

you need to adjust the high speed needle turn it out in 1/4 increments as you throttle it, low speed may have to come out alittle but do high speed first. I had to answer this as I use to have a pastor john in sturgeon bay, miss him alot.

Posted on Jul 24, 2009

  • 71 Answers

SOURCE: stihl line trimmer starts but won't stay running

check to make sure your kill switch is not shorting and you have the right gap from the coil to the flywheel also if the flywheel sheer pin is damaged in the least this will cause a multitude of problems... it is the timing pin and must be in good shape not damaged or sheered ..any way reply to mrdmburns@cableone.net and i will try to help you through this.... DALE good luck and will wait for reply..

Posted on Aug 29, 2009

  • 36 Answers

SOURCE: Craftsman 25cc weedwacker (358.791030). Zama

need to adjust the high sscrew. i do mine in 1/4 turns. start machine, full throttle, adjust the h(high) til it clears up.i would start by turning 1/4 counterclock wise, just remember to keep track, in case it runs worse, the put it back to orig. then try the other way. but i suggest 1/4 turn at a time

example... think of a clock when turning screw. straight up and down, 12oc, 1/4 turn will be 3oc, another 1/4 will be 6oc, and so on. hope it helps!

Posted on Sep 22, 2010

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Here is a link to the site that has the G&D (gasket and diaghram) kit and RB (rebuild) kit part numbers for you. You will need to know your machine's model. Link to determine your carb: http://www.zamacarb.com/pdfs/APPL_CR2010.pdf
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Husqvarna 142e will not stay running. Going through the sequence of full/half choke it will start and run at high rpm when choked. Even after warmed up, it will die within a few seconds after dropping the...


Hi,
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You've cleaned out the whole thing - so it's not air that's the problem. It's running - so it's not a spark problem - it's a fuel problem.

If you have a fuel filter - change it out or clean it properly. If the fuel line is clear, then you need to adjust the running setting of the carb - there are usually 2 setting knobs -one for idle - one for running / mix.
You need it running richer till you get it going - then trim it back to stop it smoking and get a good rev.

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Hope my suggestions solved your problem.

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