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Old 28 December 2003, 12:11   #1
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Yamaha PTT solenoids

Found out the hard way when opening one to try and clear a dodgy contact (it would only run down and not up) that they are non-repairable.
Anybody have any idea
a How much a new one costs and where from
b If I can get a secondhand one somewhere when I recover from my shock at the price
It is from a 97 model 70hp so it is the single type solenoid with two wires rather than the two seperates with three wires.
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Old 30 December 2003, 19:38   #2
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Found with some difficulty that you can repair them, bit of solenoid rewinding and some soldering and it works. This was after finding out a new one was 130!
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Old 31 December 2003, 07:26   #3
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Well done. That's what I like to hear. Just get in about it and sort it.
For you and anyone else who may need to rewind something, here's an address of a specialist wire supplier. The coatings do vary, depending on the application.

The Scientific Wire Co., 18 Raven Road. London, E18 1HW. The old tel. no. was 0181 505 0002. I can't remember how the London prefix has changed. No doubt, someone can post a correction.
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Old 31 December 2003, 13:12   #4
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I would think i'll now be: 020 8 505 0002
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Old 31 December 2003, 13:17   #5
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direction

Is it not the switch that is faulty rather than the solenied or motor , if you try the two wires that come back from the motor and change their polarity across a battery it will prove this
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Old 31 December 2003, 14:25   #6
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The original problem was that one of the large contacts inside the solenoid was not making so although the solenoid operated both directions, power was only going to the motor for "down" and none when going "up"
I burst the solenoid coils and connections when opening as they are supposed to be sealed and ended p not only cleaning the contacts to fix the original fault but rewinding the solenoid coils to give enough wire to resolder the outside connections to. Now there is one turn less on each coil but in practice this won't be noticed (there are several hundred)
At least I didn't have to shell out for the new one!
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