Re: Dumb Questions from a Newbie

Mon Apr 22, 2013 11:18 pm

It is fuel starvation and the clue is right here:

Smarg wrote:Drained the gas tank, the reservoir trap underneath and changed the fuel filter (a generic in-line type)


First there is not fuel filter aside from the fuel sediment bowl c/w screen and the carburetor inlet screen. This is a gravity feed system and unless an in-line filter is set up perfectly, it will restrict the flow of fuel to the carb and will cause the:

Smarg wrote:It actually runs now for only about 3-4 seconds then stops.


Smarg wrote:Yes, made sure I turned the little petcock back on underneath the tank.


Make sure that you open that petcock all the way. If not then the valve is not completely open and will also cause starvation issues.

The taking 5 minutes or so before it will start again might have a couple of reasons.

Now for the #1 spark plug. Squirt some good penetrating oil at the base of the spark plug. Good penetrating oil and NOT WD-40. Do this a couple of times - letting it sit for a bit an hour or so between squirts. Then carefully try to remove the plug again. I have had to use a cheater at times to break the rust free but you really have to be careful cause you could shatter the plug and that leads to a whole new kettle of fish.

Smarg wrote:The oil was really dark and old looking...gotta change it when I find out how.


At the bottom of the oil pan is a square plug.

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Take that out - make sure you have an oil collection pan below it.

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Then take the cover off of the filter element, remove the element. At the bottom of that fixture you will find a butterfly cap ... take that off too. Then you will end up cleaning out most of the oil. Let it drain for a few hours, better yet, over night. Then, you can change the filter element and the oil.

Once that is done, then suggest you put 1/2 can of SeaFoam in the crankcase and 1/2 can in the gas tank. This will help get rid of the carbon that is built up on the cylinders as well as lube and clean the valves. You will notice a lot of smoke, it will diminish after a bit and then disappear. You will be able to hear a change in how the engine runs - it will be smoother after a while.

Remember what I said before about taking a bit of time and reading the Owner's Manual?? All the answers are right there. Now mind you, no one minds answering the questions, it does help us learn to explain things better. But reading the manual will help retention of the information. Course, just trying to help.

Re: Dumb Questions from a Newbie

Mon Apr 22, 2013 11:25 pm

Don't over tighten the oil filter top. It can warp easily and lead to problems.

Re: Dumb Questions from a Newbie

Tue Apr 23, 2013 8:33 am

Barnyard wrote:The metering jet is the hex head found on the side near the bottom. Take it out and run a thin copper (soft) wire through it and shoot some carb cleaner through it.

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Wow. Can't get any better than that--even a picture. Thanks a bunch!!!

You know, I'm all alone out here with my old Cub, I just wish I had one of you Cub "Graybeards" here that would just say, "You idiot! Yep, there's your problem right there. Ya gotta do this, this and this... :lol: "

Re: Dumb Questions from a Newbie

Tue Apr 23, 2013 8:37 am

Smarg wrote:I just wish I had one of you Cub "Graybeards" here

Would love to be there, but that 32 hour drive would be a killer.

Re: Dumb Questions from a Newbie

Tue Apr 23, 2013 8:43 am

Remember what I said before about taking a bit of time and reading the Owner's Manual?? All the answers are right there. Now mind you, no one minds answering the questions, it does help us learn to explain things better. But reading the manual will help retention of the information. Course, just trying to help.


Yes Rudi, I know, I know. I've read every page you guys put on this thread. One of these days I'm going to the library and print the thing off.

Also, I was using WD-40 for the spark plug, so I'll get some penetrating oil.

Thanks! How far do you live from WA state? :mrgreen:

Re: Dumb Questions from a Newbie

Tue Apr 23, 2013 10:29 am

First there is not fuel filter aside from the fuel sediment bowl c/w screen and the carburetor inlet screen. This is a gravity feed system and unless an in-line filter is set up perfectly, it will restrict the flow of fuel to the carb and will cause the:


Hmm...yes, there was/is a lawn tractor-type filter that my father-in-law had apparently put in himself. He put it between the metal gas lines coming from the sediment bowl and the carb. When I restore this little beast I'll make it stock. Good call, Rudi. Thanks! :)

Re: Dumb Questions from a Newbie

Tue Apr 23, 2013 11:28 am

Get rid of the extra inline filter, even if you use a short length of rubber hose to replace filter till it can be put back original. BTW the threads on the carb and fuel bowl are NOT standard pipe thread.

Re: Dumb Questions from a Newbie

Tue Apr 23, 2013 1:49 pm

SHE RUNS!!! :{_}:

I did everything you guys said (gas, plugs, carb) and she started!!! WOO HOO!! Thanks a bunch!!! :D This site is amazing. Whoever thought of this site was a genius.

Okay, keeping with the title of the thread...before I go for a little ride, the front tires are half flat. I can't find any psi numbers on the sides of the tires. I'm assuming they are tube. What is a good pressure? Never having a tractor before, are the rear tires liquid or air filled?

Re: Dumb Questions from a Newbie

Tue Apr 23, 2013 2:43 pm

You know I never looked for that number but when they were full it is evident they are no longer half flat. I never wanted them to soft or too hard. I just use good ole common sense. I probable use around 28/30 lb. OOPs are AG tires or not?

Re: Dumb Questions from a Newbie

Tue Apr 23, 2013 2:56 pm

Smarg wrote: I can't find any psi numbers on the sides of the tires. I'm assuming they are tube. What is a good pressure?

About 20 psi in the front and 12 to 16 in the rear. Check out this page of the manual. http://www.cleancomputes.com/Cub/Cub%20 ... age-52.jpg

Smarg wrote:are the rear tires liquid or air filled?

That's a loaded question! :lol: They may or may not be loaded with liquid. That depends on the previous owner.

Re: Dumb Questions from a Newbie

Tue Apr 23, 2013 2:56 pm

beaconlight wrote:You know I never looked for that number but when they were full it is evident they are no longer half flat. I never wanted them to soft or too hard. I just use good ole common sense. I probable use around 28/30 lb. OOPs are AG tires or not?


Makes sense. Didn't know if they had to be a standard pressure. Thanks

Re: Dumb Questions from a Newbie

Tue Apr 23, 2013 5:17 pm

Smarg wrote:Thanks! How far do you live from WA state?


From Mapquest : 51 hrs 50 mins / 5299.21 kilometres My Place to Your Town

Smarg wrote:Yes Rudi, I know, I know. I've read every page you guys put on this thread. One of these days I'm going to the library and print the thing off.


I don't bother printing pages off anymore - I have one of my old laptops in the pole barn. When I need to check something, I fire it up and there it is. Also, it is wireless sort of - so I can log on at times. .... Printing it off will be useful, but if you have a printer at home, I would suggest just printing the relevant pages that you need at the time to take to the barn with you.

Sorry if I sound like a broken record ... but .. hey, Em and I raised us up 5 kids -- it sort of gets ingrained ifn you know what I mean :big give up: :lol:

I am glad you got her running. :applause: Feels good doesn't it to be able to accomplish that. :D Especially for those of us who are not mechanics, it really is an awesome feeling to be able to learn new skills. :-:-): Now as you go along, you will be refreshing those skills and in time it will all be second nature.

Have a look at this when you get some time : How To Upgrade A Cub Fuel System

Re: Dumb Questions from a Newbie

Tue Apr 23, 2013 5:43 pm

Push on the center of the valve stem, with stem most anywhere other than 12:00 and you will know if they are loaded! Always air up loaded tires at 12:00. Tubeless tires can be loaded, but usually not. Be wary of calcium chloride, it will rust out the rims if it gets out of the tube. Once you learn to tell the difference in stems you will know if a tire is tubeless, as some tubeless tires may be running tubes. Also loaded tires ride different, less bounce.

Re: Dumb Questions from a Newbie

Tue Apr 23, 2013 6:12 pm

Rudi wrote:
Smarg wrote:Thanks! How far do you live from WA state?


From Mapquest : 51 hrs 50 mins / 5299.21 kilometres My Place to Your Town

Smarg wrote:Yes Rudi, I know, I know. I've read every page you guys put on this thread. One of these days I'm going to the library and print the thing off.


I don't bother printing pages off anymore - I have one of my old laptops in the pole barn. When I need to check something, I fire it up and there it is. Also, it is wireless sort of - so I can log on at times. .... Printing it off will be useful, but if you have a printer at home, I would suggest just printing the relevant pages that you need at the time to take to the barn with you.

Sorry if I sound like a broken record ... but .. hey, Em and I raised us up 5 kids -- it sort of gets ingrained ifn you know what I mean :big give up: :lol:

I am glad you got her running. :applause: Feels good doesn't it to be able to accomplish that. :D Especially for those of us who are not mechanics, it really is an awesome feeling to be able to learn new skills. :-:-): Now as you go along, you will be refreshing those skills and in time it will all be second nature.

Have a look at this when you get some time : How To Upgrade A Cub Fuel System


Thanks a bunch, Rudi. I was hoping maybe you'd be in BC close by...51 hr drive? Woah! :shock:

I need to upgrade that fuel system, so thanks for the link too. ALL you guys are great...you, Barnie, dan, the whole bunch of yas. :-:-):

Re: Dumb Questions from a Newbie

Tue Apr 23, 2013 6:14 pm

danovercash wrote:Push on the center of the valve stem, with stem most anywhere other than 12:00 and you will know if they are loaded! Always air up loaded tires at 12:00. Tubeless tires can be loaded, but usually not. Be wary of calcium chloride, it will rust out the rims if it gets out of the tube. Once you learn to tell the difference in stems you will know if a tire is tubeless, as some tubeless tires may be running tubes. Also loaded tires ride different, less bounce.


Thanks Dan. By "loaded" do you mean liquid filled?