Likely it needs valve lash adjustment.
SOURCE: cub cadet lt1050 poor running
when you cleaned the carb was the needle replaced. also what is the compression on this engine. if a unit has low compression they will sometimes only run on full choke. is there good fresh gas in this unit. No water..(if in doubt trow it out)
SOURCE: cub cadet 7254 with a 25 hp kawasaki running rough when hot
your carb needs to be either rebuilt or replaced. it is crudded up with lacquer.
SOURCE: my cub cadet tank stops running 5-20 minuts after
Yes you may need a carb kit. It is not good practice to by-pass the fuel filter. The orifice in the jet is very small.
But anyways, There Could still be a blockage inside the carb, a small leak at the manifold, or the jet is worn out.
Let me know how it goes.
SOURCE: my cub cadet mower LT1042 will not start. It acts
Just had the same problem with our LT1042 and it was the fuel shut off soloniod. Could not buy just that piece so we took it off and cut off the piece that went up on the carborator and put it back on. Started right up. Now it back-fires when we shut it off but it runs.
SOURCE: Starts with choke but will not run when choke is
I've noticed the Echos are cold-blooded and a decent warm-up time is required. You indicate the fuel mixture has to be somewhat rich to keep the engine running. This indicates the needle jets need tweaking to acquire the proper mix (if applicable) or else the fuel pump diaghram is not functioning properly and needs replacement according to the symptoms.
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
This is the link to determine the part numbers of the kits. Zama has a great site and informative links:
http://www.zamacarb.com/pdfs/QuickKit_CR2010.pdf
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