Where do you buy your carbs.

[D_Mac 8,619]

33 minutes ago, ebinmaine said:

Closely check the BOTTOM of the shaft and its corresponding hole for wear. 

The top is a relatively easy fix. 

The bottom, not so much.  

 

If ya need a couple washers for the top lemme know.  

 

 

Going to need more then a couple of washers. It will also need the throttle shaft, throttle plate, plus the washers. Might just order one tomorrow.

[ebinmaine 67,550]

19 minutes ago, D_Mac said:

Going to need more then a couple of washers. It will also need the throttle shaft, throttle plate, plus the washers. Might just order one tomorrow.

 

That'd be the best way to go I believe.  

[D_Mac 8,619]

So i ordered the new carb today from  Isave. Should be here by the end of the week. My question now is this new carb has the connection on the throttle that looks kinda like a tie rod end. My old set up dosnt have that. It has the little metal rod with the little plastic bushings. I want to use the new set up but im not sure what secures the end of that tie rod looking connection to the gov. arm ? After you slide it through the hole is there a fastener to secure it?

[pfrederi 17,741]

Small E clip on governor arm end

[Wheelhorse#1 1,666]

I have had good luck with flea bay.Shop around.Rebuild kits are availabe as well as OEM throttle shaft kits.I don't like the off shore models but that's just me.

[ebinmaine 67,550]

5 minutes ago, Wheelhorse#1 said:

Rebuild kits

I've tried a couple of aftermarket kits for the Kohler carburetors. 

I've found that either the base gasket or the splash shield doesn't seem to be as good of a quality as the OE manufacturer kits. 

I still have a few of those on the shelf but if you have an aftermarket kit that's a lot less money AND good quality I'd be interested in knowing where you get them.  

[D_Mac 8,619]

So my new carb should be here tomorrow.  Ordered one from isavetractors. Hopefully the free 310-8 will be mowing grass this weekend. Excited to get that carb on and get the tractor home for a good cleaning.

[D_Mac 8,619]

Got my order today. Came pretty late in the day so I will try to get it on tomorrow afternoon. Shipping was quick. Can't wait to try it. More to come.

[Skwerl58 704]

I received my carb from iSaveTractors and it runs great. The 90 degree fuel fitting was leaking after I used it so removed it and they sent me a new fitting. Threads stripped on the fitting but carb is fine. The tractor seems to running a lot smoother and the governor is not searching as much with this carb. I am holding on to my old carb for a rebuild but it has excess wear at the shaft and the butterfly (flap) is loose at the screws, surprised it hasn't fallen off. Thanks Eric on the offer for the bushings but right now I will pass due to the wear. 

[ebinmaine 67,550]

10 minutes ago, Skwerl58 said:

I received my carb from iSaveTractors and it runs great. The 90 degree fuel fitting was leaking after I used it so removed it and they sent me a new fitting. Threads stripped on the fitting but carb is fine. The tractor seems to running a lot smoother and the governor is not searching as much with this carb. I am holding on to my old carb for a rebuild but it has excess wear at the shaft and the butterfly (flap) is loose at the screws, surprised it hasn't fallen off. Thanks Eric on the offer for the bushings but right now I will pass due to the wear. 

 

If ya need parts lemme know. 

Not sure what's here but I'd be glad to take a look.  

 

 

[D_Mac 8,619]

Well very disappointed.  Put the carb on that I got from Isavetractors and same thing. Runs only with the choke closed. Minute you try and open it the engine dies. Pulled the fuel line off the elbow on the carb and it does pump gas into a jar. Fuel filter was replaced and was full of gas. Guessing the pump isn't pumping enough gas ?  

[SylvanLakeWH 25,594]

Does that have a vented gas cap? Petcock open all the way?

 

Just a thought... 

[D_Mac 8,619]

Yes petcock open fully.

[ebinmaine 67,550]

Don do you have a primer bulb on it?

 

[D_Mac 8,619]

No primer. Sprayed it several times with starting fluid, each time it would fire and die unless I closed the choke. With choke closed it will stay running until I try to open it or shut it off with key.

[ebinmaine 67,550]

10 minutes ago, D_Mac said:

No primer. Sprayed it several times with starting fluid, each time it would fire and die unless I closed the choke. With choke closed it will stay running until I try to open it or shut it off with key.

 

Do you have a loose gas tank you could hang higher than the engine?

If it runs from gravity feed I'd be suspect of the fuel pump.  

 

[SylvanLakeWH 25,594]

 

My C105 likes / needs the primer bulb pumped and then runs like a champ...

 

One additional thought - Maybe already addressed but - Filter screen in the tank partially blocked?

 

 

[ebinmaine 67,550]

8 minutes ago, SylvanLakeWH said:

Filter screen in the tank partially blocked?

If I remember correctly that tractor sat...

The filter screen is almost certainly bad.  

[D_Mac 8,619]

Didn't sit. Previous owner said it was running until the throttle plate came loose of the carb. He had a repair shop come and pick it up and looked it over told him needed a carb. PO decided he didn't want to repair it and I picked it up from repair shop. I have no history with it other then what he has told me. He told me it was running. Engine running at high rpm due to the plate off. He shut it off immediately. After I got it we pulled the head to check for damage. There was no damage. Put on new head gasket.  100+ compression test. Changed oil, fuel filter, gas line from fuel pump to carb. Rest of the line looked good. New battery, new carb.Tractor was well cared for. That's pretty much it. Tank is under the seat. I can try and find a screen.

Edited June 10, 2023 by D_Mac

[ebinmaine 67,550]

7 minutes ago, D_Mac said:

100+ compression test

Is there no ACR in later Kohler single cylinder engines?

I wasn't aware that a Kohler single could have a compression test.  But I've never dealt with one newer than 1975 or so. 

 

9 minutes ago, D_Mac said:

Rest of the line looked good

I'm not saying this IS the problem but I assure you it NEEDS to be changed. 

Fuel lines often degrade from the inside to outside. 

 

 

I'd try the primer bulb and/or the hanging elevated gas tank. 

Verify that engine will run by gravity.  

 

[wallfish 17,002]

Old gas will do that. Assume it's ethanol pump gas in it.

Run it on some new fuel from another tank directly to the carb and gravity feed it.

I once had bad gas within 2 days after getting it. What a PITA because it was the last thing I thought about and spent hours trying to figure out what was going on. Would only idle with choke on. Die on any other condition.

It's certainly possible to have a bad new carb but I've used at least 6 of those and all fired right up with minimal adjustments needed after and all are flawless runners.

Put it on a known runner to verify it's good or to eliminate the carb as the problem or confirm it is the problem

[D_Mac 8,619]

I can't believe I would get 3 bad carbs in a row. This is the 3rd carb I have had on this machine. One wouldn't run at all, other 2 run when choke closed. 

[ebinmaine 67,550]

26 minutes ago, D_Mac said:

I can't believe I would get 3 bad carbs in a row. This is the 3rd carb I have had on this machine. One wouldn't run at all, other 2 run when choke closed. 

I'd wager... 

The one that wouldn't run at all was likely bad or badly gunked up. 

The other two have help from something upstream causing a seemingly bad carb.... That isn't.  

[wallfish 17,002]

20 minutes ago, D_Mac said:

I can't believe I would get 3 bad carbs in a row. This is the 3rd carb I have had on this machine. One wouldn't run at all, other 2 run when choke closed. 

It's something else but it can easily be verified by putting it on a known running engine if you have one. Rule it out then move on to something else

Not enough fuel, bad fuel or too much air getting in are the main causes of that == running only with choke on condition.

Does it run to high RPM when it is running with the choke on? Or only idles? 

 

[D_Mac 8,619]

3 brand new carbs. The third being one from isavetractors. Tomorrow we will drain the tank, clean the screen, use fresh non ethanol gas. If it still won't run it has to be fuel pump. Correct?