Head Light Issue/Wiring Diagram

[Dave2610D]

Hi all...My headlights decided not to work lately. It's a YM2610D and the fuses have been checked, but have not checked the pull switch for the headlights (low beam/high beam)....having my doubts it's the switch, but hey anything can happen you know. Side note....when I turn on the key I do have turn signals working and the three red warning lights just to the right of the key are all working properly. The light in the RPM/HR gage that is on the dash does not light up when I pull out the switch for head lights as well.

Anyway.... Scratching my head and just can't seem to put my finger on it.
Any wiring diagram so I can trace the wires and see where they go?

Thanks for reading....David

 

[winston1]

Here is a diagram of the 276, don't know just how close it would be to your 2610. Even if you had a diagram of the 2610 it would be in Japanese and very hard to understand.

 

[kenmac]

a volt meter, or 12 volt test light should be able to help you locate the problem

 

[Dave2610D]

Here is a diagram of the 276, don't know just how close it would be to your 2610. Even if you had a diagram of the 2610 it would be in Japanese and very hard to understand.

This diagram will help me a great deal. I've gone over it and looks very similar to my tractor. I really appreciate that you shared this with me....Thank You Very Much ....Dave

 

[Dave2610D]

a volt meter, or 12 volt test light should be able to help you locate the problem

Kenmac, Thanks for the advice. Did what you said and traced it to the switch and only got a 8.5 volt reading from the terminal "B" (I will have to double check)...battery reading is 11.58 v, so I am suspicious it might be the ignition switch? Thinking that perhaps something in the switch might not be making as good of a contact as it should.

Could my lower volt reading from the light switch be something else I'm missing here? Thanks, Dave

 

[winston1]

Your battery should be reading over 12 volt, around 12.6v. 11.58 is not good.

 

[Dave2610D]

Your battery should be reading over 12 volt, around 12.6v. 11.58 is not good.

Thank you and yes know this straight up. My point was to show the volt reading difference. Tractor hasn't been run this winter.
I'm still tracing wiring ....will let y'all know.

 

[normde2001]

Yep, charge battery to 12.6 v and then check.

 

[California]

traced it to the switch and only got a 8.5 volt reading from the terminal "B" ... battery reading is 11.58 v,

Could my lower volt reading from the light switch be something else I'm missing here?

Headlight switches go bad. I had forgotten but I replaced mine on the YM240 as part of the renovation it needed when I bought it. The 'start' position was intermittent. The previous owner had just had the starter rebuilt locally assuming that was the problem, he wasted money on that when the problem was actually the switch.

After I installed a Hoye replacement switch I cut open the old one. I found it packed absolutely solid with dead pillbugs, partly insulating the contacts.

Disconnect the battery then use a multimeter to check resistance between in/out terminals of that switch. It should be minimal, in the range of one ohm on the most sensitive setting. If one output has notably higher resistance then replace the switch.

 

[Dave2610D]

Headlight switches go bad. I had forgotten but I replaced mine on the YM240 as part of the renovation it needed when I bought it. The 'start' position was intermittent. The previous owner had just had the starter rebuilt locally assuming that was the problem, he wasted money on that when the problem was actually the switch.

After I installed a Hoye replacement switch I cut open the old one. I found it packed absolutely solid with dead pillbugs, partly insulating the contacts.

Disconnect the battery then use a multimeter to check resistance between in/out terminals of that switch. It should be minimal, in the range of one ohm on the most sensitive setting. If one output has notably higher resistance then replace the switch.

Great advice. I've have pull out the switch with the wires still connected. I tested the voltage is a 8.5 volts while the battery is 11.56. Even though the battery is lower by 1 volt, I should in theory be getting 11+ at the wire that is supplying power to the switch, correct?

Meanwhile I have a battery charger on the marine battery that is in the tractor. I'll keep this tread posted as to what I find out. Thank you for the help California...is appreciated.

 

[California]

Yes voltage should be equal anywhere you measure it. There has to be a high resistance somewhere along the circuit to drop voltage that much.

One very common automotive (tractor) problem is a bad ground connection. I don't know if that applies here but it's something to examine.

 

[kenmac]

when checking voltage. remember to check the wire that is suppose to be hot with one lead and the other lead to ground.

 

[Dave2610D]

when checking voltage. remember to check the wire that is suppose to be hot with one lead and the other lead to ground.

Will do...Thanks

 

[Dave2610D]

I have a resistance of 2.2 from the neg post of battery to the bolt the is connecting the negative cable to the frame. This is a bad issue?

 

[California]

I would dismount the ground cable, clean all attachment points, and measure again. Might as well clean the positive cable too.

I think that should measure well under one ohm but if you're using the 'free with purchase' Harbor Freight multimeter, you may be within it's range of error. I recently borrowed a $200+ lab multimeter and found all four of my HF freebie meters showed a tenth to a quarter volt low, testing the 12 volt tractor battery. Think of that meter as a tool that can suggest an issue, not as a precision instrument!

 

[Dave2610D]

I would dismount the ground cable, clean all attachment points, and measure again. Might as well clean the positive cable too.

I think that should measure well under one ohm but if you're using the 'free with purchase' Harbor Freight multimeter, you may be within it's range of error. I recently borrowed a $200+ lab multimeter and found all four of my HF freebie meters showed a tenth to a quarter volt low, testing the 12 volt tractor battery. Think of that meter as a tool that can suggest an issue, not as a precision instrument!

Hi California, I'm using this multi meter....Klein Tools Auto-Ranging Digital Multi-Meter-MM4 - The Home Depot
I will do exactly by dismounting the cable and cleaning well. Meanwhile, I've checked the starter switch and it turning out fine as well the head light switch. I took that switch apart and was really clean inside so I was happy about that. While I was at it I dismounted the fuse box and cleaned all the contacts behind it where the wires clip on, plus the bus bars for each fuse. Turns out while I was going over things the wires were not on there perspective post, so that's all corrected now.
What I have done today as well was remove the head light fixture and will clean it. I checked the black ground wire noticed the connector a little dirty and have wire brushed that. I'll see what happens after I finish the ground cable from the battery and assemble all.

 

[California]

Sounds like you have covered all the bases.

That's a much better meter than my freebies.

 

[Dave2610D]

Sounds like you have covered all the bases.

That's a much better meter than my freebies.

My bride made sure to advise to get something not too expensive or too cheaply made when we were at Home Depot buying the multi meter.

Changing gears on you for a moment......noticed your location. My wife and I really enjoyed visiting your star July 2016 stayed at Half Moon Bay over at the Ritz. Hired a vindor and toured Napa. wow what a fine time we had. Beautiful State and gorgeous Napa Valley. Arranged a lunch for the two of us at Auberge Du Soleil, An Auberge Resort with special seats on the terrace. Had to save a few pennies for that trip but was it worth it. Yes

 

[California]

Glad to hear you enjoyed it here. We should probably go see what those nice places are all about, we never have.

We're on the periphery of that world-class Napa environment, over in Sonoma County, west of Napa. Some years my apples have gone into Martinelli Sparkling Cider, the stuff served at weddings to non-drinkers. The contractor who cultivates/harvests my apple orchard has a vineyard on his home parcel that feeds into Kosta Browne. Their Pinots sell in the $100 range!

My little place was bought by my grandparents as a modest retirement home for them with the apples carrying some of the cost. But recently these little places are getting bought up as summer homes at insane prices. I'm now one of the few remaining traditional orchards. Its a small piece of rapidly-disappearing traditional California, that I enjoy preserving.

 

[Dave2610D]

I finally assembled everything I took apart to check all ground wires. Lights are working now....hurrah !!!!