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Discussion Starter #1
Title says it all,Put new carb and checked all hoses, fuel pump seems to be

fine and filter is clean although not new. I considered vapor lock and back

pressure from tank. I loosened gas cap and it seemed to help. at one point

when it started to surge, I jumped off and shook tractor back and forth to

move gas around and see if pickup or anything was clogged. It ran for about

15 min or so, then died again

Another clue, if I choke the heck out of it when this starts, I can just about

keep it running.

BTW $212 for a carb...awesome huh. 2 barrel
 

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David I had a very similar sounding problem with my JD 210. Tractor would run fine then loose power. I could keep it running by manipulating the choke. I was one step away from buying a new carb. I decided to get a condenser, points, and a coil. After I installed those items the machine ran like a top. Just a suggestion hope this helps. I also had to reset the carb adjustments to the factory settings after I installed those items.

Good luck. Hope this helps.
 

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Some of those fuel cap vents would plug up. You can pop it apart and clean it. I've seen some weird white goop in there. If that's the problem, when it dies you can remove the gas cap and you'll hear a swooosh sound.

If it continues, you may want to just replace the hose from the tank to the pump.
 

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Discussion Starter #4
Thank you very much, I have 25hp 2 cyl and 1 coil per cylinder and also a module on the side of the motor. It is a 2006 I believe and the ignition is solid state. Could one of the coils be overheating, seems strange from my experience, but with 2 coils, it should stay running but rough. Does this make sense to you as well?

Thanks for quick reply
 

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Discussion Starter #5
EngineTech...Thanks for the tip, I asumed venting issues as well, so loosened cap and it ran fine for awhile, then started surging again. I am going to bypass tank and stick a clean filter and hose in remote mounted tank with a gallon of fuel, old car trick. see what it does and get back to you. Thanks again.
 

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My grandfather has a troybilt GTX with a kohler command 18. It is also a solid state with two coil packs. This tractor was the first time we encountered a problem with coils. With the coils acting up it may not fire at the correct time. You may have both coils going which will cause the problem.

I went to two different dealers in two different states to figure out my 210 problem. Both places said I had a fuel issue. I asked one dealer to take the tractor and fix it. They wouldn't even look at the tractor. I did change out the inline fuel filter and the fuel shut off with mesh filter(located in the tank). This did not solve the problem. Dealer also told me to replace the carb.

Good luck I hope this helps.

Karl
 

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If the fuel delivery system is check and ok move to electrical (coil, spark plug wires etch...).

Always start by the basic, get a shop manual if possible.

Sometimes electrical composante when heat by the engine comes short-circuit.

If you have the engine identification number (FHxxx, FDxxx) I could try to find the shop manual.
 

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Discussion Starter #9
OK, EMBARRASMENT GALORE HERE, I did not need a carb, or a filter or

anything. As it was acting up, I was spraying gas into the carb. Helped alot.

So, I said 'Let's check the fuel lines', tried blowing air trough the fuel line, first

right into fuel pickup, then just before filter. Air seemed like it was blowing

back in my face. So...and here it comes...upon visual inspection, I stuck my

big head under the back of the tractor, looked up at gas tank and realized

the fuel line had wiggled it's way from the factory routing location to a point

that the line was stuck between the tank and the body, not totally cut off,

but enough. Pulled line out, tried air...PERFECT! Forced air into filter side, and

fuel tank expanded. Now when it runs perfectly. I rode it for hours.

TIP :IT SEEMS THAT THE FUEL FILTER ON MY TRACTOR ALWAYS LOOKED 1/2

FULL, NEVER THOUGHT ANYTHING OF IT, NOW, WITH LINE MOVED, FILTER

LOOKS EMPTY, WHICH MEANS IT IS SOLID FUEL FILLING ENTIRE FILTER. A

VERY EXPESIVE LESSON, BUT WELL LEARNED, HOPE IT HELPS ANYONE ELSE

WITH THIS PROBLEM. WHY AND HOW IT RAN WELL FOR OVER AN HOUR EACH

TIME IS BEYOND ME...BUT, THIS AFTERNOON, IT ACTED UP IMMEDIATLEY

UPON STARTING, NEVER DID THAT BEFORE. OK GUYS LET'S HAVE SOME INPUT

WHY AN HOUR AND THEN KAPUT, WHAT WAS HAPPENING TO THE LINE AFTER

THE HOUR THAT CAUSED MOTOR TO ACT UP...??????

ANY BODY WANNA BUY A USED JD CARB FOR A 155C:fing20:
 
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