contact felt

Dellortoman said:
What happens when you get to 60,001 km?
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You keep riding but when every year or so you check the points, you notice that they are pretty worn and could do with a change.
So you put new ones on and put the old ones on the shelf, just in case.
Paul
 
michipons said:
Do you mean electronic don?t last so long??
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Not at all Miguel, though electronic ignition only breaks down once, then you need an electronic phone and some satellites to get you home.

What I mean is that since most Laverdas don't run for more than a few hours a year, if that, reliability of components has no more meaning of any sort.

Paul
 
Witt DMC1 ignition on the 3CL has clocked up over 178.000 since 1988.
So much for old wives' tales....

Gerald
 
in 1972 a certain Mr Dave Minton, then a free lance journalist and prolific in "Motorcycle Sport" rode Slaters demonstration bike down to Breganze for a look see at the super secret 1000 triple prototype, his bike (750SF) was fitted with a Boyer transistorised ignition, he spent several hours in the hills on the "lets kill the journalist route " which Chris Booth and I enjoyed being led by Pierro, just the three of us, in 2018, dave was riding a triple and Pierro a very worn 750SFC, he was of course wined and dined, and stayed overnight, he then rode back in one single day (something that I have done a fair few times on TOG, 1000 miles), when Slaters opened up the bike to give it a service before the next journalist tried it out, they found that the electronic ignition had gone and was replaced with stock, this was without Daves knowledge, devious, spying  little waps, as we all know, the triples never did have points for production bikes, (question, did they in proto form?) but the twins, for road bikes always did. Phil Todd's involvement with Boyer ignitions came much later and initially was to replace the broken Bosch systems on triples. I fitted a Boyer system when I built my Egli (1979) which was direct from Boyer and configured for a Norton Commando (not one of Phils) big mistake, as max advance is not enough for my twin and it felt flat at high RPM, and would probably have been damaging, so back to points and all was well.
CLEM
CLEM
 
Paul Marx said:
electronic ignition only breaks down once, then you need an electronic phone and some satellites to get you home.
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Not necessarily. I've had two electronic ignition systems fail on me (a Bosch BTZ and a DMC1) but they both failed in a gradual sort of way and gave me plenty of warning that they were on the way out. I wasn't left stranded.

Electronic components will sometimes fail suddenly, but it's just as likely that they'll slowly go out of spec as they age, and you'll notice a change of behaviour of the ignition system. Perhaps a miss at high rpm or some other weird effect, but you still get home.

The only ignition I've had that let me down entirely was a points system. One of the little tungsten contacts broke off and I didn't have a spare set of points with me. It was on a 2-stroke twin that was almost impossible to ride on one cylinder because the motor was too peaky. I t was a struggle to rev it enough to get sufficient grunt to get moving. I could take off downhill or on the flat, but when I got to a set of uphill traffic lights, I was knackered. So rather than burn the clutch out, I found a phone box (pre mobile phone era) and called someone with a trailer to come and get me.
 
I have rarely "had" to replace a set of points. We used to replace them as practice if they were in stock as part of service but they were well re-useable. Being a mechanic in outback Australia you didn't have stock, but a lovely fine oilstone to dress the contacts back to new, a tiny pit maybe left in the surface was nothing to worry about. It was standard practice to dismantle, grease the pivots etc. If they were badly burned the condenser was replaced. Standard practice for car mechanics was replacing points and condenser at every service.
Are you saying Clem that the factory stole the Boyer system from Slaters?test bike that Phil had ridden over on?
 
No,
I am saying that the factory stole the Boyer system from the Slater demo SF that Dave Minton rode to Breganze on.
CLEM
 
Gerald said:
Witt DMC1 ignition on the 3CL has clocked up over 178.000 since 1988.
So much for old wives' tales....

Gerald
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So has my SF2 on points. And it starts with 8 volts or less in the battery.

Paul
 
CLEMTOG said:
No,
I am saying that the factory stole the Boyer system from the Slater demo SF that Dave Minton rode to Breganze on.
CLEM
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And Minton (my error, I did see it was DM) never noticed any difference on the ride home (+1 to Mr Marx).
I remember a Minton report from riding the triple at that time, it sprung an oil leak from the cam cover if it was the same one. Piero was furious that it had sprung a leak, and Minton had Buckley?s of keeping up with the SFC regardless which was not surprising in Piero?s back yard.
 
No. Don't need to.
If when I hit the starter button it goes whooon vroom instead of  hihihi vrooom, there's no more than 8 volts.
No voltmeter, no cell phone with satellites, no visa card. Just vrooom and go.

Paul
 
Paul Marx said:
No. Don't need to.
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