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Mar 09

Posts: 46

Bannerman says:

GT 550 Indicator problem

Hey all. Some help needed.... I have a 1988 kwak GT550 and am having an issue with my indicators. They basically turn on, but will only blink when at quite high revs. I am assuming that it’s a relay problem, but not too sure. Any thoughts folks?

This is a problem on both sets of indicators by the way.


Thanks all

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  • Posted 5 years ago (17 May 2010 15:07)

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Apr 09

Posts: 1928

hawk750 says:


Clean the terminals up on the relay & make sure it's not touching any metal, then run a new earth wire to a new nut & bolt, I ran mine to a No.plate bolt.

If still the same get a new relay (about a Fiver) & make sure the relay doesn't touch the frame or any metal parts.

[This Reply has been modified by the Author]

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Mar 09

Posts: 937

RoadieRoger says:

Winkers not winking

Could also be down to low voltage on your battery . When my Suzuki CS50 has to be kickstarted when the battery is low , if you try to indicate in the first mile they stay on and won`t flash . When the battery has recovered a bit they work OK . Avoid budget batteries as they don`t last !

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Jul 09

Posts: 1351

davemdixon says:

Old bikes = bad earths

9 times out of 10 its a bad earth.

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Feb 09

Posts: 3737

agree with

the chaps above:sunglasses:


Any oxidization or on any contact, or lack of contact, can change the resistance of the indicator ciruit, the relay relies on resistance to make the lamps light at an equal flash rate.


Hense the reason that they flash quicker when one lamp is out in the circuit.


It could also be a relay on its way out, but bad connectin is the first and cheapest check


As mentioned above, check connections and also look for signs of age on the lamps ( Signs of overheating).


Hope this elps:biggrin:

[This Reply has been modified by the Author]

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Mar 09

Posts: 46

Bannerman says:


Thanks all for your excellent help as always everyone. I found out that a new relay was only £4. So, two minutes work on ebay and a quick relay was bought. Seems to have done the trick.


Thanks again

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Mar 10

Posts: 653

bazablue says:


poor earth or earth wire break

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