The Red Wire

[Solze1267 202]

Yesterday I decided to get my wife's barn find Raider 12 out and go over it. Everything checked out good but one wire was out of place. It has a Kohler k301s in it and the red wire from the key switch ( labeled M) and it wasnt hooked to anything. I looked at the wiring diagram and it just shows it going into the engine behind the flywheel cover. My problem is I have no idea where it is supposed to go ( I didn't have time to take the flywheel of yesterday). Was wondering if anyone could shine some light in where it is supposed to be so I can get her tractor running.

[Achto 29,229]

12 minutes ago, Solze1267 said:

Was wondering if anyone could shine some light in where it is supposed to be so I can get her tractor running.

 

A Raider can have magneto or battery ignition. Sounds like you have a magneto ignition. With a mag ignition a wire will run from the "M" terminal on the switch to the coil. The "M" terminal will be grounded when the switch is in the "Off" position, this is how you shut the engine off. If this wire is currently disconnected, your engine should run but you will have no way to shut it off. Other than touching that wire to ground, pulling the plug wire or choking it to flood it out.

Edited September 27, 2021 by Achto

[pfrederi 18,558]

Does your engine have a coil (looks like a 7 oz beer can that has the other end of the spark plug wire in the top...or dues your spark plug wire just apperar from under the engne shroud.

Edited September 27, 2021 by pfrederi

[Solze1267 202]

It does not have an external coil it comes from behind the shroud

[pfrederi 18,558]

There should be a wire harness that come out of the engine just over the starter motor.  Should be 3 wires in it two probably white go to the regulator.  The third wire goes to the M terminal on the switch. When it is grounded by the ignition switch it kill the spark.  Never apply voltage to that wire!!!

[Solze1267 202]

So I looked over the tractor when I got home…I haven’t taken anything apart yet. I’m an idiot when it comes to electrical stuff…..will a magneto style coil still use points and condenser…I found that the red wire was cut from a connection that tied it/the key to a set of points and a condenser on the front of the engine. I guess I have to dig deeper and figure out more.

[gwest_ca-(File Mod) 11,389]

Some magneto systems use points and condenser.

Magneto ignition systems are self-powered. They do not use any battery power and if they do get it they burn up.

The lone ignition wire when grounded to the chassis shuts the ignition off.

 

Battery ignition systems require battery power to energize the ignition coil. Interrupting the power supply shuts the ignition off.

 

If you post the tractor model number and the numbers off the engine data plate they would put us all on the same page.

[953 nut 59,238]

5 hours ago, Solze1267 said:

It has a Kohler k301s

What is the Spec # for the engine, that will let us know what ignition it has.      What is the story behind the "Barn Find"?   When you got it was it a runner?  

[Solze1267 202]

@953 nut I will get the spec number tomorrow when I’m in the shop. As far as the tractor….I found it locally and it was 90% complete with a rot free deck. The Mrs wanted one not restored and after I washed the grime off all it needed was a coat of boiled linseed oil and it looked amazing. I was lucky and found NOS and used but matching condition parts to complete it. It wasn’t running but turned free by hand. It survived this long and still looks great so we both won…she got her patina/barn find tractor and I got one I can mow with!

Edited September 28, 2021 by Solze1267

[Solze1267 202]

Just got to the shop to get some info. @pfrederi I checked the harness coming from the shroud by the starter and it only had 2 wires in it….it looks like there could have been a third but it was hard to say. @953 nut here is what I believe the tag says…it’s kinda hard to read. Model K301 S  serial number c68007( I believe) and spec number 471478. I am not sure if it’s the original engine to the tractor.

[953 nut 59,238]

1 hour ago, Solze1267 said:

spec number 471478. I am not sure if it’s the original engine to the tractor.

Spec number for the '69-70 Raider 12 would be 47147C, could the last figure be C rather than 8?

[Solze1267 202]

No it’s either an 8 or a B

 

[Gregor 4,847]

Serial # seems to be missing a digit.

[Solze1267 202]

Best picture I could grab the tag is kinda hard to make out even in person

[953 nut 59,238]

Take a look at the model number tag (probably under the dash board) to determine the year/model you have. Here is a selection of wiring diagrams that my help solve the mystery.    

https://www.wheelhorseforum.com/search/?&q=Raider 12 wiring&type=downloads_file&search_and_or=and&sortby=relevancy

[Gregor 4,847]

[Solze1267 202]

Looking back at the tractor tag and the one file @953 nut posted it is a late 68 which matches the tractor and the engine I have. It will have the Bendix starter with points and magneto. So the red wire in question should hook up to the magneto in one way or another if I'm understanding it correctly.

[pfrederi 18,558]

4 hours ago, Solze1267 said:

Looking back at the tractor tag and the one file @953 nut posted it is a late 68 which matches the tractor and the engine I have. It will have the Bendix starter with points and magneto. So the red wire in question should hook up to the magneto in one way or another if I'm understanding it correctly.

Yes and peel back the covering on the wires coming out of the shroud  Really should be 3.  2 for the charging system one to ground out the magneto...

[gwest_ca-(File Mod) 11,389]

Spec number 47147B was used in the 1968 model 1-7235 Electro 12.

https://www.wheelhorseforum.com/search/?q=1-7235&quick=1&type=downloads_file

[953 nut 59,238]

On 9/29/2021 at 8:58 AM, Solze1267 said:

So the red wire in question should hook up to the magneto in one way or another if I'm understanding it correctly.

I don't own this model but the red wire may be attached to the points to ground the mag. when the key is off.

[Solze1267 202]

Gonna get a puller this weekend to get the flywheel off and do some cleaning/troubleshooting and see where it goes from there..thank you guys for the help and I will keep you posted on the progress

[Solze1267 202]

Update. Put the red wire to the points hookup....got the flywheel off and cleaned up the contacts, put it all back together and boom I have spark.... but it's weak. I know the battery I put in it is older and weak when it comes to cranking amps so I'm gonna get a new battery and clean up the carb and fuel pump and cross my fingers. I will be the first to admit I am not a small engine guru....I learn by doing and from the help of you guys on here. Thank you again for all your help.