Yamaha YS624 Lightning problem!? Help! - Snowblower Forum : Snow Blower Forums
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post #1 of 20 Old 01-10-2015, 12:41 PM Thread Starter
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Question Yamaha YS624 Lightning problem!? Help!

Hi!
I got a Yamaha YS624 around year 1995-1997 i have bought light for it but it is two cables out from the alternator one yellow and one blue. Is it + and - or what?

can anyone help me find out whitch i should use for my light?

Adding a pic with so you can see.



Regards
Tommy
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post #2 of 20 Old 01-10-2015, 12:53 PM
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What do the wires test out at? Can help you a lot if you test the wires with a meter.

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post #3 of 20 Old 01-10-2015, 01:15 PM Thread Starter
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What do the wires test out at? Can help you a lot if you test the wires with a meter.

When i test it with meter switched to Vac - 200 it shows: 43. Even if i switch + and -. There is no - in front of the numbers.
post #4 of 20 Old 01-10-2015, 01:24 PM
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When i test it with meter switched to Vac - 200 it shows: 43. Even if i switch + and -. There is no - in front of the numbers.
Try testing each wire separately using the engine as the negative.

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post #5 of 20 Old 01-10-2015, 01:27 PM Thread Starter
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Try testing each wire separately using the engine as the negative.
Ive tryed with solid engine negative but then both cables shows 0 on the multimeter
post #6 of 20 Old 01-10-2015, 01:32 PM
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Are you also testing using the DC setting? I don't mean to pepper you with questions, but it's all part of the trouble shooting.

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post #7 of 20 Old 01-10-2015, 01:38 PM Thread Starter
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Are you also testing using the DC setting? I don't mean to pepper you with questions, but it's all part of the trouble shooting.
Yep, ive tryed alle the functions on the meter, it show 0 on all exept Vac witch = 44. both with engine as negative and not. I only get 44. But if I connect the led light to both wires it lights up, no matter witch cable i use as negative. no problem, im glad to get help

(sorry for my bad english, from norway)
post #8 of 20 Old 01-10-2015, 01:42 PM
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When you connect your LED and get it to light can you please then test the wire that it is connected to and tell us the voltage? So you will be telling us the voltage under load.

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post #9 of 20 Old 01-10-2015, 01:51 PM Thread Starter
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Originally Posted by superedge88 View Post
When you connect your LED and get it to light can you please then test the wire that it is connected to and tell us the voltage? So you will be telling us the voltage under load.

When i try the led with one cable and negative to engine i get no light.
But if i try both + and - on the led connected to both cables (blue and yellow on snowblower) it lights up. even if i switches the cable with eachother.

does that mean it doesnt matter witch cable i use for + and -?
post #10 of 20 Old 01-10-2015, 01:58 PM
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Originally Posted by [email protected] View Post
When i try the led with one cable and negative to engine i get no light.
But if i try both + and - on the led connected to both cables (blue and yellow on snowblower) it lights up. even if i switches the cable with eachother.

does that mean it doesnt matter witch cable i use for + and -?
What that means is that you are dealing with an AC circuit which switches positive and negative at about 40-60hertz, so it does not matter which wire you connect the positive or negative to. With the LED connected to this circuit please test the wires so that we know what voltage the circuit is providing under load. What is the wattage of your LED light? Does it have a built in rectifier to keep the LED flickering with the alternating current? What is the rated voltage range of your LED?

Snowblowers I own.
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