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 Post subject: Joyner 250 dirt devil Blue Flames out exhuast port
PostPosted: Tue Jul 13, 2021 12:21 pm 
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I have a Joyner 250cc dirt devil i just put in new rings and piston. i adjusted the valve's and now when i get it to start it will shoot out blue flames out the exhaust port. and when i put the muffler on it gets real hot and smoke's by the exhaust port is this normal. any help would be greatly appreciated.

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 Post subject: Re: Joyner 250 dirt devil Blue Flames out exhuast port
PostPosted: Tue Jul 13, 2021 7:34 pm 
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Too rich and igniting fuel in the header.

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 Post subject: Re: Joyner 250 dirt devil Blue Flames out exhuast port
PostPosted: Tue Jul 13, 2021 11:07 pm 
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PGH wrote:
Too rich and igniting fuel in the header.



ok how to i fix this?

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 Post subject: Re: Joyner 250 dirt devil Blue Flames out exhuast port
PostPosted: Wed Jul 14, 2021 5:55 pm 
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Check for blocked air filter

Check for leaking fuel tank petcock

Check for carburetor float and slide moving without drag

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 Post subject: Re: Joyner 250 dirt devil Blue Flames out exhuast port
PostPosted: Thu Jul 22, 2021 9:15 pm 
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i got a key switch how ever i'm not sure how to wire it. didn't come with the plug just 3 terminal's 1 2 3 how do i wire this up?

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 Post subject: Re: Joyner 250 dirt devil Blue Flames out exhuast port
PostPosted: Thu Jul 22, 2021 9:23 pm 
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Three wires - So power, ignition and starter. You will need to trace those wires.

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 Post subject: Re: Joyner 250 dirt devil Blue Flames out exhuast port
PostPosted: Fri Jul 23, 2021 9:05 am 
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You can use a multimeter on the ignition switch contacts to determine when continuity/connection is made between the different terminals. In the cranking position, I believe all terminals should be connected. In the Run position, only two terminals should be connected. Run the starter wire to the terminal on the switch that stops making connection in the run position. Run the other to the ignition. Run the last to power. Hope this makes sense and I didn't screw anything up.


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 Post subject: Re: Joyner 250 dirt devil Blue Flames out exhuast port
PostPosted: Sat Jul 24, 2021 4:09 pm 
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ok so would this be right

1 - Power
2- CDI
3- Starter

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 Post subject: Re: Joyner 250 dirt devil Blue Flames out exhuast port
PostPosted: Mon Jul 26, 2021 1:17 pm 
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So no one knows the answer?

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 Post subject: Re: Joyner 250 dirt devil Blue Flames out exhuast port
PostPosted: Mon Jul 26, 2021 2:34 pm 
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1, 2, 3 mean nothing to me. Here's why. Without testing the switch for continuity, nobody would be able to answer.

Here's what you have to do to figure it out. Get a multi meter put it to continuity test. When you will touch both leads from the multi meter, it will beep. This is what you need to figure it out.

Your switch have 3 states, OFF, ON / Accessories and Start position. You have 3 wires, you call them 1, 2, 3.

This is an example. It doesn't mean your switch is exactly at the same place as I did. You have to test it.
Attachment:
IMG_3377.JPG
IMG_3377.JPG [ 459.63 KiB | Viewed 104 times ]


I put the state on the left and I put the 3 wires on the top.

1. When my switch is off, I have no continuity anywhere. This is why you do not see any line with the dot.

2. When the switch is on, the red wire and the white wire give me continuity. Mean the voltage / current flow. Green wire got nothing on it.

3. When the switch is at the start position, I have continuity on ALL 3 wires. This is why you see a line going thru all 3 wires and the dot.

Now you need to make a logic for all 3 wires. You need to find the common wire, the wire that bring the power to the switch. In my case, I have 2, red and white. But the logic say that red is usually the +12 from the battery. This is the logic use across electric / electronic plan. But I could use the white wire and the result would be the same. It would only be harder to figure it out down the road when you have to trace your wires.

I also notice that the white wire have power on it in 2 state, when the switch is on and also at the start position. It mean I have to use this wire for the CDI and also any accessories on my machine. Let say I use the green wire it would cause a problem. I would only have power to the CDI when the switch is at the start position. Soon I release the switch to the on position the engine will not run.

As for the last wire, green. Well I only have power to this wire when the switch is at the start position. Happen that I only want power to the starter when the switch is at the start position. Work really good because soon I release the switch to the on position the started will stop spinning because I don't have power thru. But because I put the CDI on the white wire, the CDI will still receive power and the engine will still run.

When I will put the switch back to the off position, the CDI will not have power anymore and the CDI without power will stop the engine from running.

This is all the logic you have to go thru.

Here some questions for you.

1. Where did you buy this switch?

2. They didn't give you the wires diagram for it?

3. Is this switch rated for what you use it for? I am asking because if the switch is not rated for that kind of power, you will burn it.

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 Post subject: Re: Joyner 250 dirt devil Blue Flames out exhuast port
PostPosted: Wed Jul 28, 2021 12:33 pm 
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1 - i got the switch from ebay here is the link https://www.ebay.com/itm/401673435951?ul_noapp=true

2 - No i emailed them and they don't have one

3 - it said in the description it's for joyner so i assumed it would work

ok wiring

red - from battery

red- battery relay ( yellow wire coming out the smaller wire on it)

black - rectifier i think that is what it's called it the metal box with fine's on it

turn switch and 1 and 2 are on

Starting 1 2 and 3 on

so do i put black on pin 1 then the red from the rectifier on 2 then relay on 3?

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 Post subject: Re: Joyner 250 dirt devil Blue Flames out exhuast port
PostPosted: Wed Jul 28, 2021 1:52 pm 
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Ok, this is a switch they use long time ago. They change it for the one with 3 wires and a connector. But this is the same principal.

It might be a little bit long but if you follow it will work. I will also explain things so you can understand better how it work. FYI, i am using the info you gave to figure it out. If your info are wrong, it will end up wrong but from what I see, it make sense.

ignition Switch:
1- Battery Positive +12
2- Go to the CDI Black wire +12 volts. You shouls also have a Black-White, this is the kill switch. Also, it will be on the connector with 2 wires.
3- Goes to the starter solenoid, the wire should be Red-Yellow. You should also have a Green-Yellow, this one goes to ground. It should be in a white connector with 2 wires in.

The regulator, you are right, the thing with fine is the regulator.
Red is Positive +12 volts
Green is ground
Black wire should go on pin 2 of the ignition switch. This wire is actually use to read the voltage when your machine is running. It trigger your regulator to charge the battery or not. The black wire is use to protect the battery from overcharging.
3 yellow wires are AC, as long as they match the 3 yellow from the harness it will work.

At this point your machine should start. Well on the electrical side of it.

As for anything else, light and accessories, they will all go to pin 2. As long as you plug them correctly with +12 volts.

Before you start, make sure everything I say apply to your machine. If not, post some pictures of where you are confuse. If you don't, you might cause other problems and nobody here will be able to help anymore because we won't know what you did wrong and which part(s) you might have damage or burned. This is not a run, take your time and take note as you do it. If you do it wrong, you will get in more trouble.

This is with the info you gave. The problem is that earlier you didn't give enough info with 1, 2, 3 for someone to answer you clearly and make sure you have the right info.

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 Post subject: Re: Joyner 250 dirt devil Blue Flames out exhuast port
PostPosted: Wed Jul 28, 2021 5:09 pm 
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i'm not getting any wire's from the cdi the black is from the rectifier the red is from the red/yellow relay and the other green is from battery.

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 Post subject: Re: Joyner 250 dirt devil Blue Flames out exhuast port
PostPosted: Wed Jul 28, 2021 5:34 pm 
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Without seeing what you see it's a little bit more complicated. This is why I said post pictures of what you see earlier if you are confuse.

1. People will be able to see what you see and check if the part you have in front of view is the part that should be there.
2. I will take your picture(s) and use Photoshop to point and put note or just tell you from the picture you posted.

The red that switch to red-yellow should be red-yellow from one end to the other end. Keep track of that, this red is the starter relay, not the battery +12 volts.

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 Post subject: Re: Joyner 250 dirt devil Blue Flames out exhuast port
PostPosted: Wed Jul 28, 2021 9:37 pm 
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can some one delete this post Sorry wrong post should of had my glasses on.


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