Andy wrote:

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PGM's predominantly die when the RC Valves cannot rotate freely due to poor maintenance... I will put 50p on it!

There's nothing to stop you guys discussing it still, but what will the outcome be? Is someone going to manufacture a tiny M-max sized box which will plug in-line between the harness and RC servo that will "pop" before the PGM if it detects a current draw out of range? Are the black boxes going to be mass produced and marketed specifically for each model, and sold at a price that makes it appealing to everyone to go to the trouble of buying and fitting it? The opening post hints at the fact that a solution could be worked on that will benefit the WHOLE NSR community.

Personally I just can't see the point!

I bet if you could magically "see" all the dead PGM's and the reason for their failures, the number that died because of a "feedback signal/resistance" issue is virtually non existent!

Andy,

I agree with you that over 95% of failures are related to gummed up RC valves and lack of maintenance. The others......we probably won't find out what it is and don't really care as you would just swap out components and junk the bad bits. In real life, how many people will actually spend quality time looking after their bike and making sure it does work properly. There are enthusiasts like yourself that do that, but also we have those that don't understand that all things need love and attention.

I was recently asked to have a look at an MC21 that had free moving RC valves but was suspected of blowing a PGM. When we put a working one in, it made the working PGM release the "magic smoke". Knowing that the RC valves are free moving you have to try and determine what else is causing the problem, and how to verify the cause without it becoming an expensive exercise.

So my post was intended to get valid opinions and brainstorm, all in a technical context.

Separate to this, I had discussed issues with PGMs and servo motors face to face with someone from this forum, and one of his faulty servo motors actually had sheared off a couple of teeth in the gearbox, causing it to seize.

And yes, if the solution to the problem of blowing PGMs for 9x% of the times can be found by off the shelf components, I am willing to post that up and let others decide if they want to do it or not.