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 Post subject: 1988 750 sport pickup sensor
PostPosted: Sat Jan 02, 2016 3:46 am 
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Joined: Thu May 16, 2013 10:07 am
Posts: 18
Location: Australia
model: 750 Sport
year: 1988
Hi Guys,

Got a faulty pickup sensor, done all the diagnosis as recommended in other posts as well as measuring resistance across each sensor, 100 ohms and pulsing on turning her over, versus open circuit and no pulse on the faulty pickup, tested it all the way up to the 2 joiners right at the sensor. Also swapping pickup connectors at the CDI moves the problem to the other cylinder.

Had a quick look on Stein Dinse and can't seem to find a replacement, although i have yet to email them, did find one on eBay 400 ohm, seller reckons not to put them on a Bosch cdi, mine are both Procom engineering replacements for the original Kokusans.(replaced 2 years ago)

Does anyone who has come across this issue before have any tips before i move forward, just a bit concerned that the pickup blew in the first place, seems unusual, maybe the old 100 ohm sensors didn't match the new cdi although the bike used to run great with them, but then failed after i left the bike sitting for around 18 months. Must mention though that i did replace the CDI's after a nephew reversed polarity on the battery and blew one of the CDI's, maybe that damaged the pickup and was just a matter of time before it failed.

Appreciate any input !

Cheers

Mick


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 Post subject: Re: 1988 750 sport pickup sensor
PostPosted: Tue Jan 26, 2016 12:16 am 
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Joined: Thu May 16, 2013 10:07 am
Posts: 18
Location: Australia
model: 750 Sport
year: 1988
Just answered my own question, ordered the 400 ohm pickup sensors which were the same physical size as the old ones, soldered them to the original cables (they are polarity sensitive) followed the wiring chart provided by the seller bike started first time and runs well !


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 Post subject: Re: 1988 750 sport pickup sensor
PostPosted: Tue Jan 26, 2016 5:52 pm 
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paso grand pooh-bah
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Joined: Wed Apr 09, 2008 9:57 pm
Posts: 1014
Location: Manchester, England.
model: 907 I.E.
year: 1992
:thumbup: Well done sorry none of our Sport owners could get back to you in time. but as they say

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 Post subject: Re: 1988 750 sport pickup sensor
PostPosted: Mon Feb 01, 2016 7:32 am 
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Joined: Thu May 16, 2013 10:07 am
Posts: 18
Location: Australia
model: 750 Sport
year: 1988
Thanks Englishstiv, at least i learned something i suppose, and maybe this will help someone else out one day.


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 Post subject: Re: 1988 750 sport pickup sensor
PostPosted: Thu Jul 13, 2017 8:50 am 
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Joined: Fri Jun 30, 2017 9:17 am
Posts: 6
Location: Italy
model: 750 Paso
year: 1987
Buongiorno a tutti , ho una ducati paso 750 del 1987 . Non riesco a fare funzionare un cilindro , non la candela non riceve l'impulso . Il meccanico mi ha detto che il problema sono i pickup . ho comprato i pickup dell'immagine con i fili bianco e rosso , ma la moto continua a non funzionare . Mi potreste dire dove posso comprare quelli originali o che funzionano ? Il problema sembra essere la resistenza , 220 quella consigliata , 400 quella dei pickup in foto . Mickyfinn per favore mi puoi dire come hai fatto a regolarli ? Grazie a tutti , Enzo .


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 Post subject: Re: 1988 750 sport pickup sensor
PostPosted: Thu Jul 13, 2017 9:25 am 
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paso grand pooh-bah
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Joined: Sun Jul 18, 2004 12:00 am
Posts: 5084
Location: southern Germany
model: 750 Paso
year: 1987
Enzo, quale cilindro non funziona?
Anche se la resistenza e la doppia la moto di mickyfinn funziona. Se capisco bene il tuo cilindro che funzionava prima funziona ancora. Cosi i pickup nuovi non possono essere il problema.
La prima cosa che dovresti provare e di scambiare le candele, quella del cilindro orizzontale con quella del verticale per vedere se il cilindro non funzionante cambia. In caso che non ha effetto fai lo stesso con le bobine d' accensione e poi con i due moduli CDI Kokusan. Cosi elimini che uno di quezzi pezzi e il vero problema.
Poi misuri anche il voltaggio alle bobine (cavo arancio).
Controlla anche la resistenza degli pickup vecchi.
Facci sapere i risultati.


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