Ignition pick-up coil / Crank position sensor (nerdy AND boring) - Page 13 - Triumph Forum: Triumph Rat Motorcycle Forums
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Twins Technical Talk Technical Talk for Hinckley Triumph Twins: Bonneville, T100, Speedmaster, America, Thruxton, and Scrambler.

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Old 12-13-2012, 12:16 PM   #121 (permalink)
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Resolved

Fitted new ignition pick up coil gapped to .8 and all is well.

Points to note.

The steel guide for the wiring is like a razor and repostioning the cable to gain slack damaged my outer sheath. Made good with self amalgamating tape, hope it stays put! Well worth deburring if possible.

I used Kawasaki liquid gasket on the rubber to alloy joints and it was fiendishly expensive and messy as it is very runny. But no leaks!

Bike started first time this morning, best ever sub zero start, I am putting that down to the Nology coil.

Recomended torque for the pickup coil screws was about a twentieth of what it took to shift them. maybe they use araldite as thread lock, answers on a post card? I gave them an extra tweak anyway because The torque wrench clicked at just past nipped and I don't trust the things especialy where anything liquid is used on a thread.
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Old 02-16-2013, 07:42 AM   #122 (permalink)
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information speedmaster

Forgetto Hello, (sorry for my English), I'm from Spain and I have a Speedmaster carburetion 2006, a few months ago, I came fallon a piston. sometimes you do well and others not, I led the workshop, we have checked the coils and are well, we have changed the spark plugs and still ingual, the mechanic told me that failure is the CDI. But I saw on your site that can be pick-up. From Spain have told me that you understand much about the subject.
Can you help me?
thanks
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Old 02-17-2013, 05:49 PM   #123 (permalink)
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Have they tried measuring the sensor resistance before they blame the problem on the igniter or CDI box?. It's an expensive item to change without being sure.

Han comprobado la resistencia del sensor antes de condenar el modulo CDI de encendido?. Es una pieza demasiado cara para condenarla antes de eliminar el sensor.
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Old 02-18-2013, 11:45 AM   #124 (permalink)
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sensor resistance you mean pick-up, as you explain in the beginning?
if you please to explain it, I'd tell my mechanic
regards
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Old 05-08-2013, 01:45 PM   #125 (permalink)
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IMPORTANT NOTE ON RESISTANCE VALUE

But note that on later bikes, after VIN number 437493 they've changed the specification and part number of the pick-up coil. Old number was T1290131, new one is T1296505.

There are some mechanical changes as well, but the new resistance value is of the order of 217 Ohms rather than the 600 Ohms of the old one.
I added this info from Forchetto from another thread
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Old 05-13-2013, 03:29 PM   #126 (permalink)
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Thanks Forchetto for posting these topics you've saved me a lot of time and money.My thrux wouldn't start and we've managed with tune ecu and a good mechanic to narrow it down to this.

You get a cheers too Haggis for the part numbers!
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Old 07-28-2013, 09:15 PM   #127 (permalink)
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Thanks Forchetto very interesting and helpful
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Old 09-02-2013, 01:42 PM   #128 (permalink)
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Forchetto, I want to thank you for your great info...I have a quick question for you.
I made the LED tester for the pick up coil as you described, and it worked. However the light was extremely weak...in your opinion, is that a symptom of something or to be expected?
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Old 09-02-2013, 11:15 PM   #129 (permalink)
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Quote:
Originally Posted by WorGaz View Post
in your opinion, is that a symptom of something or to be expected?
Normal, I think. There's very little energy generated by that coil, after all the ECU only needs a small signal.
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Old 10-14-2013, 10:13 AM   #130 (permalink)
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Forchetto,

Amazing research, I recently started having simmilar issues with bike shutting off. Checked for spark and nothing, let her sit for 15 to 20 minutes and started back up. I have changed the coil, tested pick coil and its around 520 cold. I have not checked gap, but would you recommend changing unit since I will need to get in there anyways? also what would be next if issue continues the CDI?
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