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tallen4392

C-81 no crank

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Was using my c-81 today started right up after 4or 5 min just quit no will not turn over but will start with power put to the starter I checked all the wires and connections look good when  I turn the key only the battery side of the selonide is hot should I have power to the small wire when I turn the key the thing always started right up like today  but today it just died hard to figure out any ideas ???? Thanks

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Is there a fuse somewhere that could cause this that is what it felt like I could not find one 

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Yes, you must have 12VDC  at the small terminal on the solenoid when the switch is in the start position.   Connect a jumper wire from the + battery terminal to the small lug on the solenoid. The solenoid should click in and the starter should turn.   If it doesn't, the solenoid is bad.  If it does crank, then the solenoid is OK and it is not getting power from the switch.  If you have a good wire from the solenoid to the switch with good clean connections, then the switch must be bad.    If the tractor runs OK then you have power to the switch, but the switch is not connecting power to the start terminal.

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With any electrical problem the first step is to clean and tighten ALL electrical connections including grounds. A bad ground connection is often overlooked and is as important as any other wire. Not sure if your engine is on a "shaker Plate" but lots of '79 to mid '80s :wh: had the isolation mounts and the ground wire from the frame to the engine could give these symptoms.

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I spent hours checking tightening all I could did not see anything from engine to frame will check tommorow was wondering if the small wire on the selonide should get hot when you turn the key only the battery side is hot when u turn key 

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Yea that’s what I thought that wire is dead when you turn the key just weird because it started right up like always then died after a few now no power to that lug but if it lost power to that wire it should of stayed running correct

I saw your post after thanks 

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The brake switch prevents cranking but has nothing to do with ignition. Is the PTO off? Are you sure the 25 amp fuse between the battery and amp meter is good and the fuse holder is clean? Withe the key on dose the amp meter show discharge when the lights are turned on? The amp meter could also be the problem. The start/ignition switches on garden tractors has a brass disk with little humps pressed into it which is under spring tension and is moved with the key. Could be the key switch.

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No headlight on it pro is off I will check the fuse tommorow did not see a fuse is it something u can see or do I have to take amp meter out  thanks for the tips 

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The amp gauge works there is power coming out of the back of ign switch at the two orange wires when key is turned to start has black ground strap on motor to frame and are tight can I just run a wire from back of ign to wire on selonide I don’t know why there is no power there the wires look ok

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Can I run a wire from the back of lgn switch Red start wire straight to the selonide and by pass the the pto interlock switch I don’t run a deck on the machine at all 

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1 hour ago, tallen4392 said:

Can I run a wire from the back of lgn switch Red start wire straight to the selonide and by pass the the pto interlock switch I don’t run a deck on the machine at all 

Presuming the switch is not the problem you could get by with the PTO switah bypass.

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Thanks the red wire on the switch is hot at the back of the switch  when key is in start  position

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Anyone know where the clutch interlock switch is near the pedal or at the back of the tractor  

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It should be just inside the pedal.  The ear the rod is connected to slides across a ball that makes the switch.

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There is a picture of the 105877 switch on this page. Click on the picture and the page it takes you to click on the 3rd picture.

Garry

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There are 3 photo's of the 104680 pto switch on this page. Click on the picture. One half controls the ignition and the other the starter circuit. The last picture is the switch connector and wiring.

Garry

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thanks a lot where do they hide that pto switch I looked  but it is bitter outside here I will look again tomorrow did not see it it must be behind the side cover I am thinking

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4 minutes ago, tallen4392 said:

thanks a lot where do they hide that pto switch I looked  but it is bitter outside here I will look again tomorrow did not see it it must be behind the side cover I am thinking

You will need to remove the battery and look back in the tunnel.

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I cannot find any switch on or near the  clutch pedal or anywhere else in that area could it be somewhere else ????

 

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