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#1 frenchy OFFLINE  

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Posted February 25, 2013 - 08:08 PM

Trying to get my ignition working. Lights on works, switched power works but ignition doesn't have 12V when I crank. Currently by passing the safety switch. How does the start position get power to it?

#2 superaben OFFLINE  

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Posted February 25, 2013 - 08:23 PM

What are you working on?  A lot depends on what engine, what machine, and what setup you have.  In particular, is the motor electronic ignition or condenser/points/magneto?

 

Ben W.



#3 frenchy OFFLINE  

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Posted February 25, 2013 - 08:25 PM

Mf14 with new Kohler command ch-620 engine. I have red as constant, yellow as switched power, white as lights, black is ignition start and blue is PTO.

#4 frenchy OFFLINE  

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Posted February 25, 2013 - 08:36 PM

Another piece of info, I voltage tested the ignition start wire and when I turn the key I only get about .10 V. Is that normal? I'm guessing no

#5 DougT ONLINE  

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Posted February 25, 2013 - 08:37 PM

This is a repower? Does that have an external coil w/points or is it electronic ignition? I'm thinking the commands are electronic but without looking it up?? Does your switch have an M or an I term on it?



#6 DougT ONLINE  

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Posted February 25, 2013 - 08:38 PM

Another piece of info, I voltage tested the ignition start wire and when I turn the key I only get about .10 V. Is that normal? I'm guessing no

What are you calling the ignition start wire? Are we working on spark or cranking??



#7 frenchy OFFLINE  

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Posted February 25, 2013 - 08:40 PM

Crank sorry. It's a repower. It was a Kohler k321 now it's a 2012 CH-620. I'm using the old switch and just using the wiring that was there and disconnected the built in switch on the engine.

#8 Amigatec OFFLINE  

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Posted February 25, 2013 - 08:42 PM

If its a mag DO NOT put power to the ignition. You will blow the mag. If it points and an external coil like a car it uses 12v. It it has a mag it WILL NOT have power to the mag.
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#9 DougT ONLINE  

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Posted February 25, 2013 - 08:46 PM

The S term on the switch should go to the solenoid for the starter and have 12v in crank. You will need a switch with an M term for the spark. Using one with an I will ruin the mag. I think there should be a tutorial on switches and basic wiring pinned somewhere


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#10 frenchy OFFLINE  

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Posted February 25, 2013 - 08:54 PM

The old engine had a mag. This one I'll have to check

#11 DougT ONLINE  

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Posted February 25, 2013 - 09:23 PM

If it had the mag, you should be alright. It should show 0v when the switch is on. Here is one of the posts for the switch  http://gardentractor...itch-letter-id/

There's another one on here with good basic info too. I'll keep looking.



#12 frenchy OFFLINE  

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Posted February 25, 2013 - 09:39 PM

According to what I've read it's a CDI electronic ignition. Now does that mean it's magneto or ignition coil?

 

here's the diagram for the new engine. The wires i have from my switch are:

 

White - Lights

Blue - PTO

Red - Constant

Yellow - Switched

Black - Crank

Green - Goes to amperage meter

Other black cluster - ground

 

The only one that I can't find a place for is the yellow. If you compare my chassis wiring to above I have the following hooked up... in parentheses is the diagram notation :

 

Yellow - Not connected

Black - Starter tang (M)

Red - Main Solenoid Pole (N) Also has purple from regulator connected and main battery lead

 

Those three are the only switched connections that are left and i'm unsure of. The lights are connected and work in the acc position, the PTO works in acc, and on positions.

 

Does that help?

 

 

Screen Shot 2013-02-25 at 8.29.38 PM.png

 

Screen Shot 2013-02-25 at 8.42.05 PM.png


Edited by frenchy, February 25, 2013 - 09:45 PM.


#13 frenchy OFFLINE  

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Posted February 25, 2013 - 10:09 PM

went out to the garage and pulled the switch out. I do have an "M" tang on it. That tang had yellow and blue coming out of it. Both of those have live power in Acc and On. The "G" tang is going to the white wire which is lights, The "A" tang is the red wire that is going to the main power lug on the solenoid, the "S" tang is the black wire that goes to the crank tang on the solenoid.



#14 frenchy OFFLINE  

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Posted February 25, 2013 - 10:58 PM

Attached is the MF14 wiring diagram for reference.

 

Screen Shot 2013-02-25 at 9.55.13 PM.png

 

 



#15 DougT ONLINE  

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Posted February 25, 2013 - 11:11 PM

The S tang going to the starter is right. Look at F in the diagram. That shows a white wire going to the kill circuit at the switch term AI in the diagram. That should be the M tang. The M tang on the switch should have continuity to ground with the key off and show 0v and open with the key on. You should have a G tang on the switch that goes to ground.Do you have a B tang on the switch? That should be the main power wire that you have going to A. A is usually aux and it or L can be used for lights.






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