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Neutral light not turning off in gear

Started by 350smoker, August 25, 2019, 04:53:11 PM

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350smoker

As the title says my neutral light doesn't turn off when I put the bike in gear. Any ideas?

Organicjedi

Obvious question but, have you checked the wire and the plastic switch?

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350smoker

Brand new neutral switch and wire installed with the powerdynamo I put on

350smoker

I'm having lots of light problems though the blinkers only work when both brakes are on and the tail light on illuminates with front brake. Brand new rear brake light switch also so idk

2 Stroke Jamoke

The neutral switch is working the ground side of that circuit.  When you shift it interrupts the ground and the light goes out, you must have a short to ground on that wire somewhere that is completing the circuit without the switch.

350smoker

How do I figure out where the short is? I'm an electrical idiot. shits like black magic to me

2 Stroke Jamoke

Look around the switch , around the powerdynamo backing plate, that's a known pinch area. Then check up at the headlight and where the light itself is. Theres no secret trick, you just have to inspect the harness and connections. These bikes are old and wires get brittle and crack. Look for pinch points too around the steeringneck. Cheers

350smoker

I unplugged the brorn wire for it at switch and it went off if that means anything

2 Stroke Jamoke

You can always run a new wire from the switch to the light

350smoker

Ran a new wire and it works thanks so much! Now to figure out why my brake light is only working with the front brake.

2 Stroke Jamoke

 :righteous: glad you got it! Give the rear brake light switch a look, it shares power with the front brake switch so I would say the harness is probably working properly. Could be as simple as the connection. You can use a voltmeter to test the switch and see if it's working (continuity) good luck!

350smoker

I'll check for continuity on the rear brake switch tomorrow! Im also going to fire up the bike for the first time tomorrow, I'm super excited!

quocle603

Having this similar problem myself. It just appeared out of nowhere when I went riding the other day. Been having some electrical problems ever since. I will try to right a new wire to see if it helps.

Were your other lights dim and did your neutral light get dim when you revved the bike up?
Do not underestimate the power of a two-stroke.

1975 Yamaha RD350 (modified), 1973 Yamaha RD350 (stock), 1971 Suzuki T500, 1981 Yamaha XS650 HS2, 1982 Honda MB5, 1980 Puch Maxi, 1979 Puch Magnum, 1993 Tomos Bullet, 2003 Malaguti Firefox F15 LC

350smoker

All my lights were fine nothing was dim. Neutral light just wouldn't turn off turns out it Hadden gotten pinched by the power dynamo assembly

quocle603

#14
Looks like I have to figure out what is going on with my issue. I am messing with it tonight.

UPDATE: Brush was worn down and made the spring hit the slip ring causing it to come off of the rotor. Piece of the cooper slip ring wedged between the neutral switch wire and caused it to short out.
Do not underestimate the power of a two-stroke.

1975 Yamaha RD350 (modified), 1973 Yamaha RD350 (stock), 1971 Suzuki T500, 1981 Yamaha XS650 HS2, 1982 Honda MB5, 1980 Puch Maxi, 1979 Puch Magnum, 1993 Tomos Bullet, 2003 Malaguti Firefox F15 LC