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Old 04-06-2011, 01:31 PM   post #1 of 20
thegrapesodaman
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Default Simplicity 6216 help!

Well, first off i'm new to this board so i'm hoping i can get some help. I have a couple of questions.I recently picked up a simplicity 6216 in non-working condition. i had to free up the vari-drive system and do some wiring work. now that it is running and driving i need a few pointers.

Question #1: The tractor runs really good with the choke mostly out. i had the fuel pump and carb rebuilt and a new vacuum line installed by a local small engine repair guy an it still runs bad, does anyone know what that could be? a lack of vacuum maybe..? but both cylinders have 120psi of compression.

Question #2: I have the opportunity to get a 42" snow blower attachment for this thing, but it is from a 7116.. Would it work with some modification? (I can make brackets and weld pretty good if needed) well those are my main questions for now, so i hope i can get some help!

Thanks
Jack
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Old 04-06-2011, 02:01 PM   post #2 of 20
windfish
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Default Re: Simplicity 6216 help!

Welcome and congrats on getting the 6216 moving again.

Question 1 should just be the carb. If it runs fine with the choke out, means its getting the incorrect fuel / air mixture. And the carb controls this.
http://www.briggsandstratton.com/eng...he-carburetor/
There's a screw that adjusts the fuel mixture, one that adjusts the air, and one for the idle speed. Set each to the recommended starting level and adjust from there, its mostly trial and error.
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Old 04-06-2011, 02:12 PM   post #3 of 20
thegrapesodaman
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Default Re: Simplicity 6216 help!

Windfish,
I just went out and let the tractor warm up and messed with the screws for a while now, starting at 1 turn out and going out using 1/2 turn intervals and the problem doesnt seem to change, but get worse. even when the screw is border line falling out it still doesn't get enough gas.
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Old 04-06-2011, 02:28 PM   post #4 of 20
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Default Re: Simplicity 6216 help!

The 42" blower head will work but the hitch is wrong. You need the under the belly hitch. You wouldn't want to try to fabricate the hitch.

For the carb issue, find the briggs numbers (should be on the left cylinder cover, stamped)and download the manuals. Some of the carbs have two screws, idle and high speed. Some just have one, idle with high speed pre-set from the factory. The pre-set seems to run lean at high speed (emissions) I'm assuming.
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Old 04-06-2011, 02:34 PM   post #5 of 20
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Default Re: Simplicity 6216 help!

These are for the two screw set up. But looks like it will work with both.
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Last edited by ezliving4ume; 04-06-2011 at 02:39 PM.
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Old 04-06-2011, 02:35 PM   post #6 of 20
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Default Re: Simplicity 6216 help!

O *** that thing has had a tiller on it before!!!!!!!!
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Old 04-06-2011, 02:36 PM   post #7 of 20
Justy37
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Default Re: Simplicity 6216 help!

With air screw in and fuel screw in.. Turn each a 1/4 turn to start with. If it starts, then while running adjust air screw. But careful of any moving parts.

If that doesn't fix it, could be improper float, or float adjustment. I've replaced the float on my agco allis once or twice already.
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Old 04-06-2011, 03:28 PM   post #8 of 20
thegrapesodaman
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Default Re: Simplicity 6216 help!

How can you tell that it had a tiller? and justy, i'll check the float
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Old 04-06-2011, 06:41 PM   post #9 of 20
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Default Re: Simplicity 6216 help!

I had the same problem on my landlord ( of coarse horizontal engine and diffrent setup) but i just let the choke stay out on it and it ran just fine after warm up.
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Old 04-06-2011, 07:25 PM   post #10 of 20
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Default Re: Simplicity 6216 help!

You can tell it had a tiller due to the black hitch on the back and the hole cut out in the back with the bracket beside it.

You need to go to simplicity's web page and down load the parts and opertors manuals. They will help a lot. I don't know what your plans are for her but I can tell you when operating correctly you won't find a nicer entery level garden tractor.

O and I bet if you look thru the square hole in the back you will see two pulley's. I drive with a belt and one small 3" with no belt. This is the tiller drive pulley
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Old 04-06-2011, 08:09 PM   post #11 of 20
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Default Re: Simplicity 6216 help!

Grape; Welcome and nice tractor. I agree with the gang likely a carb adjustment.

But to aid your diagnosis, let's talk about it. 120 PSI; good compression; sounds like you are sure of a reliable spark as evidenced when choke is closed and it runs smooth.

So you have an Air/Fuel mixture problem. When the mixture is right into the cylinder head....not the carb...it runs well.

When you close a choke of course (we all know but I am trying to make sense) you make the air fuel mixture richer. Because you reduced the Air flowing into the horn or main opening in the carb.

Fuel stayed the same, (or mostly the same) flow; but when the air was reduced you then had an optimum mixture. So you have a situation where either too little fuel is entering or two much air is entering the cylinder head when the choke is wide open. When you close the choke (or pull it out) the fuel/air is more in sync and it runs right.

What could cause these effects? If you have too little fuel it would most likely be an carb adjustment or a clogged fuel filter or a vent clogged in the Gas cap. Make sure you check those.

If it is not an adjustment consider too much Air; Air likely is not too much through the main carb opening; rather it would come from a leak, a vacumn leak that allows air to enter a gasket between the carb and the head or from a loose vacumn hose or fitting. You said a new vacumn hose was added make sure it is tight and sealed and in the right place. Use a rubber hose against your ear and around the engine when it is running. Do you hear a vacuum leak? Be careful around moving parts.

Hope my running on helps you to track it down. Sounds like something simple, just have to detect it. I am pulling for you
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Old 04-06-2011, 11:05 PM   post #12 of 20
thegrapesodaman
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Default Re: Simplicity 6216 help!

well i was looking online today and i realized i was missing a part or two from my air filter assembly/housing! i'm missing what seems to be called the fuel spray shield..? and i looked at a used assembly on ebay and it also had a part that i dont (the silver part to the left) is that part important and would it effect the running this bad?

Thanks
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Old 04-06-2011, 11:09 PM   post #13 of 20
thegrapesodaman
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Default Re: Simplicity 6216 help!

Oh! and i'm looking for any attachments for this tractor, so if you know anyone who has anything for this tractor please let me know, oh and i'm especially looking for a set of chains, 23x10.5x12.. i dont know if i got that right but, rim size-12 tire width-10.5 tire height-23 and a snowblower
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Old 04-07-2011, 09:10 AM   post #14 of 20
ezliving4ume
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Default Re: Simplicity 6216 help!

Well it couldn't hurt any thing to have the fuel spray shield in place. The carb adjustment pages I posted should fix your issue. with the fuel air mix or atleast let you rule out the carb adjustment.

Any way this is a picture of the hitch you need for the blower.
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Old 04-07-2011, 09:16 AM   post #15 of 20
ezliving4ume
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Default Re: Simplicity 6216 help!

You mite want to look into getting the guards for the two outer arbors. The guards will keep the belt from jumping off. like this
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"THE BITTERNESS OF POOR QUALITY REMAINS AFTER THE SWEETNESS OF LOW PRICE IS FORGOTTEN"
My tractors:
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The LandLord
Why Purchase Simplicity:
http://www.mytractorforum.com/showth...6380&highlight
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