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Misc: Charging Systems Series ‘C’ Rapide Battery Not Charging


Dave61

Well Known and Active Website User
VOC Member
Ok thanks.
So the ignition key system I have is a bonus really. Will wire whatever I get into this. There’s a red light mounted in the headlight too for ignition on and charge which is handy too.
On a general point, (should know this really) how do you stop the engine on a standard Vin. Decompression lever?
Yes, decompressor stops it, must say I haven't run mine yet but didn't like the idea of not being able to switch it off.
Handy you've already got a Red light already.
 

BigEd

Well Known and Active Website User
VOC Member
VOC Forum Moderator
......................
Just wondering as a security point, how the BT-H is disengaged from the ignition system.
Would have thought a key and a tamperproof make and break switch would be needed.
A magneto is a self-contained unit that does not have an external power supply. There is usually a wire that earths out the unit to kill the engine. You can have a kill button on the handlebars or some people put the kill wire to earth through a switch or a switch with a key.
 

danno

Well Known and Active Website User
Non-VOC Member
A magneto is a self-contained unit that does not have an external power supply. There is usually a wire that earths out the unit to kill the engine. You can have a kill button on the handlebars or some people put the kill wire to earth through a switch or a switch with a key.
Thanks. Yes, I did realize about the magneto being self contained but didn’t know how it was stopped.
I think an electronic ignition would probably be best as I have the switch and light already in place.
Can certainly see the power saving benefits of the CDI unit though.
Off to get the Alton now.
Once fitted I’ll check to see how the charge is.
 

stumpy lord

Well Known and Active Website User
VOC Member
BT-H vs Grosset.
Did read here that the Grosset ignition is true fit & forget. Don’t think it comes with coils though.
Apart from the ignition, I don’t have much to power on the Rap. Lights, indicators and Grosset starter. I always use the kick, mainly due to the starter sounding like it’s struggling a bit.
 

stumpy lord

Well Known and Active Website User
VOC Member
with the Grosset starter fitted I never use the kick starter, no need to as the electric starter is more than adequate, but their again I have a NormanWalker alternator fitted norm
 

danno

Well Known and Active Website User
Non-VOC Member
with the Grosset starter fitted I never use the kick starter
Yes, that’s my intention.
I’ve read about the Walkernator a couple of times but it doesn’t seem to be as readily available as the Alton.
From what I gather it’s a Citroen 2cv alternator.
 

vibrac

Well Known and Active Website User
VOC Member
The BTH is an electronic magneto replacement it has nothing to do with the wiring of the bike it is possible to connect the cutout wire to a separate switch if you must rather than a button personally I cut it off
 

vibrac

Well Known and Active Website User
VOC Member
Thanks. I’ve read that the coils may burn out if ignition is left on.
Not sure how long this takes.
I assume electronic ignition systems use a key barrel switch to turn on as with a conventional setup.
I have one mounted in the headlight for the Rita.

Just wondering as a security point, how the BT-H is disengaged from the ignition system.
Would have thought a key and a tamperproof make and break switch would be needed.
there is a cut off button wire I suppose if you wanted to you could wire that via a key to ground it ON to be off if you follow. but why bother if its gona be nicked it will be a van job no low life would start kicking a Vincent twin or understand following a grosset starter procedure:eek:
 

oexing

Well Known and Active Website User
VOC Member
I would think pulling the valve lifter till the crank has some speed could help the Grosset starter have an easier life ?? The 70ies Guzzi singles , Nuovo Falcone, had a small starter so this was recommended.

Vic
 

danno

Well Known and Active Website User
Non-VOC Member
I would think pulling the valve lifter till the crank has some speed could help the Grosset starter have an easier life ??

Vic
Yes, that’s how I used to use the starter.
 
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timetraveller

Well Known and Active Website User
VOC Member
Walkernators are built to order so not on the shelf and due to a recent change in the type of alternator used it has taken quite a while to modify the kit to take the new alternators. You would have to wait weeks or months compared to an off the shelf Alton However they are much cheaper and produce more than double the power.
 

vibrac

Well Known and Active Website User
VOC Member
Obviously never had a starter with coil ignition that backfired when turning the key on..
 

stumpy lord

Well Known and Active Website User
VOC Member
Walkernators are built to order so not on the shelf and due to a recent change in the type of alternator used it has taken quite a while to modify the kit to take the new alternators. You would have to wait weeks or months compared to an off the shelf Alton However they are much cheaper and produce more than double the power.
and are a true fit and forget kit. I like many others went through many years struggling with dynamos. until Norman came up with his kit, and cured all my generating troubles.
stumpy lord
 

danno

Well Known and Active Website User
Non-VOC Member
and are a true fit and forget kit. I like many others went through many years struggling with dynamos. until Norman came up with his kit, and cured all my generating troubles.
stumpy lord
I hope I won't be struggling with an Alton at the price. Difficult to know how many watts is sufficient but I suppose it’s the ignition that’s the main thing as lights can be changed to LED.
At 90w it’ll hopefully be a big improvement over my 6v Miller dynamo and JG converter setup.
 
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timetraveller

Well Known and Active Website User
VOC Member
I think that the Alton is a lot more than 90 watts. The alternators I use now are able to produce 40 amps, 480 watts at 12 volts, 572 watts at 14.3 volts but you should never need that even with heated clothing etc.
 

oexing

Well Known and Active Website User
VOC Member
What is the ratio of the poly-V belt drive on the walkernator, I guess less than 2:1 ? So I don´t think it will provide that wattage at cruising speeds - but certainly a lot more than the Miller.
I provided a few numbers of my brushless motors tests at various loads and corresponding revs at the crank. Can somebody point me to some files with Alton performances ? Still searching. The Alton has a gear set inside still, I guess ?
Anyway, a walkernator would never be acceptable to my eyes, spoils the classic looks a lot. But there must be customers with all that power requirements today, I am not one of them.

Vic
 

danno

Well Known and Active Website User
Non-VOC Member
Anyway, a walkernator would never be acceptable to my eyes, spoils the classic looks a lot. But there must be customers with all that power requirements today, I am not one of them.

Vic
Yes, I was going to say about the appearance. I didn’t realize the Walkernator was belt drive. I think there’s a pic in this thread.
That’s what you’re paying for with the Alton. It retains the classic, original looks and is discreet.
 

Sakura

Well Known and Active Website User
VOC Member
I personally regard the valve lifter system as pretty suspect and probably the least thought out part of the engine. Francois says its use is unnecessary when starting and I never use it with the electric starter. It may be necessary with the bored out, high comp motors but I have no experience of one.
 

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