Dies in 20 minutes CC30 H

wekjo

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Aug 1, 2014
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Take a piece of cloth cut in 8" diameter circle, remove the fuel tank cap and replace with cloth held on with rubber band. If motor then works fine for long periods you may then want to get a new OE gas cap. Have had this problem on mowers and cars way back into the 70s. Usually a blocked fuel line issue. Most recently last summer with a Broadmoor. Run great for variable short periods then die, however disconnect fuel line from pump input nipple and gas would come out of line, and remove fuel line on output side of pump and get a gusher. Watched a youtube video from "individualized repair" guy showed a zero turn with same problem, gas oozes thru the blockage which makes mower seem to be working fine until a consistent high demand like spinning blades and operational speed has been put on it. So pulled my tank out, more than a little work,and discovered a small piece of paper coiled into a cone like form stuck in the end of the little fuel inlet to gas line, and a dead bug.
 

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Brucewayne

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I bought a used Cub Cadet CC30H, it starts and runs well for about 20 minutes, then it misfires and dies. I have fresh fuel, new fuel & air filter, new spark plug and oil/filter change.
After about 10 minutes it starts and does the same again. I don't hear a hiss after it dies and I loosen the fuel cap so doubt that's plugged. When I replaced the fuel filter I did install a paper element filter vs a red screen type, could that be a cause.
Did you install the filter in the direction of the arrow?
 

Yorston Bill

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I finally got the filter replaced, used a red 150. Ran the mower yesterday with no issues. Hopefully this issue is resolved. Thank you all for your suggestions, if the problem re-emerges I will return to tis thread and try again.
 

jabCaudills

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I bought a used Cub Cadet CC30H, it starts and runs well for about 20 minutes, then it misfires and dies. I have fresh fuel, new fuel & air filter, new spark plug and oil/filter change.
After about 10 minutes it starts and does the same again. I don't hear a hiss after it dies and I loosen the fuel cap so doubt that's plugged. When I replaced the fuel filter I did install a paper element filter vs a red screen type, could that be a cause.
 

jabCaudills

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Oct 30, 2016
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I bought a used Cub Cadet CC30H, it starts and runs well for about 20 minutes, then it misfires and dies. I have fresh fuel, new fuel & air filter, new spark plug and oil/filter change.
After about 10 minutes it starts and does the same again. I don't hear a hiss after it dies and I loosen the fuel cap so doubt that's plugged. When I replaced the fuel filter I did install a paper element filter vs a red screen type, could that be a cause.
 

jabCaudills

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Oct 30, 2016
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Lots of good suggestions, but I would like to add fuel solenoid... It looks like a battery attached to the bottom of the carburetor.

(Remove it with a 1/2" box-wrench... maybe 9/16", but it has to be thinner than the typical quarter inch. (Lay it flat on the table. It's about 1/4" inch tall. It has to be about 3/16" or 1/8" tall after grinding it. You won't use it much afterward, but hold onto it, because we use ours once per week repairing similar engines.)

Test it by using a 9-volt battery... (YouTube has lots of examples of this.)
 

slomo

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You guys having this fuel starvation issue. Recommend buying a new style, pain in the rump, fuel can. Those old ones with open tops slash missing caps got to go. All they do it let trash into your can passing it to your mower tank. Not to mention water and E-10 issues. Your can might be good. Just install a new style spout. I "think" they also keep the fuel fresher.

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