I have a Ford Tractor and JD Lawn Tractor

[JC-jetro]

so are you saying the 2 brass parts laying on the red O is the main jet and the bottom piece is threaded and can be removed with a screw driver if there is enough room( there is), then the longer piece falls free? Then you clean the 2 tiny holes with a piece of copper wire. This cleans the main jets?:confused2: I do have a mechanical fuel pump that workes off the cam shaft with a pushrod. I replaced it 2 seasons back, I guess it could have went bad again but the last time it was leaking fuel from a vent. It is not leaking now.

Yers Ray, you are correct. Now what you see is Honda carb and I'm not sure if you have the second metering tube in there or not. Concept is the same. If you look at the 3rd picture you see two holes, the one on the side is where needle valve along with the float closes or opens fuel flow in to the bowl. The hole in the middle is the main jet. You might have just the jet as I have on my other small engines. if you do not have enough room down below it , then you might use a stubby short screwdriver. unscrew it counter clockwise and clean it. I would also put the small dia tube on the carb cleaner can and shoot carb cleaner thru the hole to clean it up if you have some varnish there. if you do not put gas stabilizer in the fuel over winter storage can cause issue with the carb.

JC,

 

[jinman]

Mine is a Kawaski water cooled 2 cy 17 HP rider. Ray

That's the problem. Your John Deere has a Polish engine.:laughing:

Sorry Ray, I couldn't resist making fun of your typo. In my opinion, you need to get that carb off and do a disassembly/cleaning of all jets and orifices. Having to half-choke an engine means the vacuum has to be increased to draw fuel into the engine. There's a good chance that fuel may not even be drawn in the normal way. I had a similar half-choke problem on an old mower and found that it was sucking fuel from a vent rather than the main jet orifice. Having to choke the engine is a sure sign of blockage making fuel feed nearly impossible or at least way too lean. I think any external treatment or even seafoam treatment in the gas is not going to be satisfactory. Seafoam is a good preventative, but your engine needs a 911 emergency repair. I think you'll have to remove it from the engine to be completely successful.

Is your JD dealer too far away or too expensive? They would surely have the most expertise in these engines and carb rebuild kits.

 

[rayikeo2]

Successful Repair, Thanks to everyone and JC's pictures. I took the carb bowl off and was able to spray clean the inside of the carb without removing it (the carb) from the tractor. What I found was little black rubber particles from the deteriation of the inside of the fuel hose from the filter to the carburator. I was able to spray it out of the carb and I have replaced the hose and filter. Yesterday I had put some sea foam in the tank and the air intake. I do not know if it had any part of cleaning the carb, but is sure didn't hurt anything. Put it all back togather and it started right up, ran smooth so I mowed my yard without a hitch. I want to thank everyone that gave me suggestions. Ray I.
Note 5/1/10 Sea Foam on sale at Orileys, buy 2 get one free.

 

[Gale Hawkins]

Ray that is good news. I would not have thought about a fuel line rubber breaking down like that.

I buy Sea Foam by the gallon for old internally dirty fuel systems and engines but as jinman pointed out it NEVER fixes a physical blockage or damage.

 

[JC-jetro]

Successful Repair, Thanks to everyone and JC's pictures. I took the carb bowl off and was able to spray clean the inside of the carb without removing it (the carb) from the tractor. What I found was little black rubber particles from the deteriation of the inside of the fuel hose from the filter to the carburator. I was able to spray it out of the carb and I have replaced the hose and filter. Yesterday I had put some sea foam in the tank and the air intake. I do not know if it had any part of cleaning the carb, but is sure didn't hurt anything. Put it all back togather and it started right up, ran smooth so I mowed my yard without a hitch. I want to thank everyone that gave me suggestions. Ray I.
Note 5/1/10 Sea Foam on sale at Orileys, buy 2 get one free.

Good deal Ray,

I have done the on several occasions without complete dis-assembly of carb and it worked just fine like yours did. Take the carb off and you need gaskets and overhaul kit. Taking the throttle link and governor is not always easy. I leave total removal and overhaul when all fail.


JC,

 

[rayikeo2]

JC, We can always count on you for some expert advice, Thanks:thumbsup: Ray

 

[jinman]

Nice job Ray. Many of us cannot remove any part of the carb without taking it off our engines. I'm glad you found your blockage to be easily found and removed. I think ethanol in gasoline is responsible for many cases of rubber hose and other rubber parts deteriorating. I am having problems with the rubber seat on the float valve on my JD mower with a Briggs engine. When the valve sticks shut, I just put 30 psi air on the carb inlet hose and blow that little puppy open.

...and I think it's pretty darn funny that you left the JD forum and came to the NH forum where you found help from JC who coached you through the repair.:thumbsup:

 

[rayikeo2]

Nice job Ray. Many of us cannot remove any part of the carb without taking it off our engines. I'm glad you found your blockage to be easily found and removed. I think ethanol in gasoline is responsible for many cases of rubber hose and other rubber parts deteriorating. I am having problems with the rubber seat on the float valve on my JD mower with a Briggs engine. When the valve sticks shut, I just put 30 psi air on the carb inlet hose and blow that little puppy open.

...and I think it's pretty darn funny that you left the JD forum and came to the NH forum where you found help from JC who coached you through the repair.:thumbsup:

Jinman, I have found the JD Forum is very reluctant to give help and I know they have the answers. They were however more helpful this time than the time my fuel pump went bad because the gas cap was plugged and nobody would tell me that might be my problem. The vacuum created in the tank ruptured my fuel pump diaphragm. I knew the good old boys at Ford/Newholland would help me. Thanks Jinman :0)