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Old 09-22-2009, 12:15 AM
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spencer087 spencer087 is offline
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Not enough fuel????

OK. i have a john deere xt120 trimmer. thats the main problem. the second problem is that it seems to not get enough fuel? i have cleanede it three times now. if i slightly choke it i mean barley it runs fine but whe choke is offf anf i open it up then it bogs and dies because of too much air. it would seem to me that this would be a simple adjustment but theres one problem. NO ADJUSTMENT SCREWS!!!??? i dont know how i can adjust the carb on this trimmer
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Old 09-22-2009, 12:26 AM
jhawk60 jhawk60 is offline
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Are you sure it's not getting enough fuel, or could it be not getting enough air to do anything but barely idle on partial choke? Have you tried running it with the air cleaner off?
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Old 09-22-2009, 12:27 AM
topsites topsites is offline
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A worn spark plug will make it do that, too, replace that.
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Old 09-22-2009, 12:31 AM
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spencer087 spencer087 is offline
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when i barley put it on choke it is restricting air which makes it run better. so its either too much air ornot enough fuel. and spark plu is possible although its a almost brand new spark plug and i replaced it when it started doing this a few onths back got sick of it after a few days and use it off and on every so often since it works at partial throttle. spark plug had alot of white buildup on it when i looked at it earlier. i have forgotten what this means though. not enoug fuel i beieve?
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Full Service: Lawncare Landscaping
Tree Service Brush Hogging Snow & Ice
417-300-2760
-2010 Dodge 3500 6.7 Diesel 4x4 DRW
-2004 Dodge 3500 5.9 Diesel 4x4 SRW
-2000 Dodge 1500 5.9 4x4 Off-Road
-2008 John Deere 2320 Utility Tractor with various attachments
-2007 John Deere 717a
-2006 Kubota ZD21
-2008 Trailer Express 16' Open Utility
-2010 Trail One 16' Enclosed
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  #5  
Old 09-22-2009, 12:41 AM
jhawk60 jhawk60 is offline
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I had a Shindaiwa trimmer that did this, had to choke it a little to keep it running. If you opened the choke or touched the throttle it would die. Popped the air cleaner off and it ran fine. Replaced the filter and it was good to go.
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Old 09-22-2009, 12:46 AM
Shasta Lake Landscaping Shasta Lake Landscaping is offline
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Make sure all carb. screws are tight, also did you check spark arrestor screen in the muffler?
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Old 09-22-2009, 12:48 AM
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spencer087 spencer087 is offline
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all screws tight spark and cleaned the spark arrestorscreen. this is a very weird issue i know
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Precision Lawns & More, LLC
"One call for All outdoor service needs"
Full Service: Lawncare Landscaping
Tree Service Brush Hogging Snow & Ice
417-300-2760
-2010 Dodge 3500 6.7 Diesel 4x4 DRW
-2004 Dodge 3500 5.9 Diesel 4x4 SRW
-2000 Dodge 1500 5.9 4x4 Off-Road
-2008 John Deere 2320 Utility Tractor with various attachments
-2007 John Deere 717a
-2006 Kubota ZD21
-2008 Trailer Express 16' Open Utility
-2010 Trail One 16' Enclosed
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Old 09-22-2009, 01:57 AM
MikeKle MikeKle is offline
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It could also be that little vent tube. I had an echo that was doing the same thing and I tried everything, even replacing all the fuel lines without any luck. then I noticed that vent tube,(kinda looks like a very small fuel filter) I took it out and repalced it. It ran fine after that? I had never even noticed it before. But I dont think every trimmer has these?
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  #9  
Old 09-22-2009, 06:28 AM
heather lawn sp heather lawn sp is offline
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In-tank fuel filter/pick-up will restrict the fuel flow. Filter shold be replaced at least annually. You are right there are no adjustments on these carburetors
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  #10  
Old 09-26-2009, 11:24 PM
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brucec32 brucec32 is offline
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Having the same situation with an echo blower. Cleaned carb, exhaust, fresh fuel properly mixed, new fuel filter, pulled the vent cap, new properly gapped plug. Ran it w/o air filter. Nothing improved.

runs well slightly choked. Much slower at normal setting. And again, no carb screws to adjust it with.

I am noticing some oil buildup in the metal carb intake/choke area when I remove the rubber air intake from it. What is that an indicator of?

All other 2 cycle stuff is running fine, so it's not a fuel problem. Compression is 65 psi. Other echo blower that runs perfectly and has low hours was only 60! I'm not sure what the spec should be but that makes me think it's not a wear problem.

Stumped.
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