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Testing turn signal flasher

10 Jun 2019 13:46
Fpalbrecht
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Testing turn signal flasher #1
The turn signals on my 1978 Dt400 work but don't flash. I'm guessing it's the
Nippondenso fu637sd flasher unit. But not sure. Could it be anything else? Can you test the flasher unit?
Thanks

2016 Yamaha Super Tenere
2009 Honda Goldwing
2003 Honda Superhawk
1999 Suzuki DR350
1978 Yamaha DT400
1974 Yamaha RD350

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10 Jun 2019 14:27
MarkT
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Testing turn signal flasher #2
The original flasher requires the correct load to flash. If you've replaced the bulbs with lower wattage or aren't running front and rear signals they won't flash.

Make sure the ground to the flasher is good.... other than that or wrong/missing bulbs mentioned above it's likely the flasher unit.

P.S. If replacing, you need either an exact OEM replacement ($$$) or a TWO-wire modern replacement. The third wire on the OEM flasher is a ground. Most modern three-wire flashers use the third terminal for a "dash" light and will short out if you plug it into the three-wire Yamaha plug. Pobit on ebay makes a kit with a two wire flasher and mounting rubber or you can probably get a 6v 2 wire flasher at a good auto parts store..

1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
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10 Jun 2019 16:50
Fpalbrecht
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Testing turn signal flasher #3
I bought K&S technologies front and rear signals. I'll check the ground and all connections. What watt bulbs should I be using?
Thanks

2016 Yamaha Super Tenere
2009 Honda Goldwing
2003 Honda Superhawk
1999 Suzuki DR350
1978 Yamaha DT400
1974 Yamaha RD350

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10 Jun 2019 17:23
KennyV
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Testing turn signal flasher #4
This what I use. I also have the K&S turn signals on my XT500 and replaced the 12v bulbs that they come with, with these,
shop.advanceautoparts.com/p/sylvania-112...1129llbp2/10031107-P

71 Z50 Minitrail
72 RT2
74 250A
78 XT500E
06 F650GS Dakar
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10 Jun 2019 17:56
Fpalbrecht
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Testing turn signal flasher #5
12v bulbs? I'll have to check! Hopefully that's all it is.
Thanks

2016 Yamaha Super Tenere
2009 Honda Goldwing
2003 Honda Superhawk
1999 Suzuki DR350
1978 Yamaha DT400
1974 Yamaha RD350

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10 Jun 2019 18:59
MarkT
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Testing turn signal flasher #6
Yes, the K&S come with 12v... they fit newer models too... good chance you just need 6v bulbs as Kenny suggested. :Buds

1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
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12 Jun 2019 07:59
Fpalbrecht
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Testing turn signal flasher #7
You guys are great! That was it. Put in 6v bulbs and it works fine. I love the inneter-web, lol.

2016 Yamaha Super Tenere
2009 Honda Goldwing
2003 Honda Superhawk
1999 Suzuki DR350
1978 Yamaha DT400
1974 Yamaha RD350

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12 Jun 2019 16:05
KennyV
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Testing turn signal flasher #8
I'm happy I could help!:likey

71 Z50 Minitrail
72 RT2
74 250A
78 XT500E
06 F650GS Dakar
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