[Ducati] ignition pickup 93 900ss

[Rich Roberts]

Seriously if I had such a failure I would pull alt case cover and take a look. If no loose rotor flywheel nut that would be a surprise and very lucky for you. I would still replace with Nichols nuts while in there. One thing common to these pickup sensors and on some models you had two is that they are very sensitive to shimming, the distance betwen sensor and the nubs on flywheel it is detecting. And not the way you think, actually too close is as bad as too far away. Years ago when mapping my 955SP at BCM, Bruce noticed an occassional miss, it was not even much of a problem, just every once in awhile a miss...most would not even pay it any mind, but Bruce had an idea what it was, we reshimmed the rpm sensor with one other shim and the miss went away. Who would have thought, I thought it was in the map. I hope Leslie is filling Bruce's shoes, all you had to do was spend a couple of hours with Bruce and lots of intersting things you could learn, and I already knew a thing
 or two. Course the point is the clearance between those sensors and the flywheel is not bery much, so when flywheel starts moving around a bit guess what it hits first????? Give up???? I take it you have pulled sensor out of cover and looked at it? I think it is just a hall effect sensor, electromagnet. if something has been rubbing or hitting it will be pretty evident I would think. If not you are likely okay. Course it could still be a loose nut and rotor has simply moved further not closer. it is all on a spline so I think at first it will move out a bit and then over time it will start to wobble a bit.

Guerin Green <guegreen at westresearch.com> wrote:  
Alright, I have an open circuit on one of my ignition pickups.

I pulled both loose, and they look ok. The wire's pretty oil-soaked 
(no kidding) but they look okay. I've seen a few distributor pickup 
fail (bad wires) from the constant movement of ignition advance, but 
strike me as still functioning.

So, does anyone have any experience with these failing?
A) Could it be in the wire run(outside the cases)?
b) The pickup is just a magnet, right? It doesn't look like there's 
much that could go wrong there. Or is there?
C) Any tips on running the wire on replacements?

And:
Any one have a source for these that may be in stock?
Same for left side gasket cover and the rubber boot for the clutch 
shaft...

Any thoughts would be greatly appreciated.

You can mailto: publisher at northdenvernews.com

PS-- Anybody going to the STAR school at Pueblo in May?




Guerin Lee Green

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