Author Topic: New toys!! CR750 A.C. Generator and electrics question (Read 1531 times)

napoleonb · « **on:** March 27, 2016, 06:25:45 am »

Hi Guys,

Couldn't resist posting some pics of my new toy.

These I already bought a few years back, kept 2 and gave away the others to a friend of mine.

Homologation pic borrowed from Carsten W.Conrads excellent site.

I do have a few questions tough, I have an unmachined copy of the generator cover so I should be able to mount it on my bike.
Also which part number have I bought, there is a -970 and -971 but what's the difference?
However when I go through all the electrics (being a complete noob in this field) do I have to adjust some other parts as well?
The partslist makes mention of a few altered parts:

11631-300-970 Cover Dynamo (in my possession unmachined)
30200-300-970 Cam, Point   (pic from Carsten)
30505-300-970 Sub Cord, Coil
30700-300-970 Terminal Assy. A
30710-300-970 Terminal Assy. B   (in my possession)
31100-286-971 Generator Assy.
31100-300-970 A.C. Generator Assy.
32100-300-970 Harness, Wire
35300-300-971 Switch Assy. (pic from unknown)
98069-60711 Spark Plug *D1OES*
98069-62410 Spark Plug *D12E*

I could find some pics of the switch assy, but the other parts and how they should be connected keep me wondered

Pics borrowed from Carsten W.Conrads for the cam point

So in short, can I use my standard ignition coils or do I have to switch them for others and if so for which type?
My engine setup is a fairly standard K7, do I have to switch sparkplugs?
Does anybody out there have the other parts I'm lacking for sale or could I borrow them in order to make a study of them and copy them if possible?
Lots of photo's are always welcome of course!

Bill/BentON Racing · « **Reply #1 on:** March 27, 2016, 07:25:36 am »

kmb69 will be jealous, but he'll have some info for you! Lol.

napoleonb · « **Reply #2 on:** March 27, 2016, 07:44:14 am »

It was quite a long shot, it was "mis-advertised" in my neighboring country and really hoped it wasn't a hoax.
Bought some CBY350 cable's, a clip-on and an NOS CR750 clutch-cable, CR750 throttle-cable, a used CR750 piston A and B as well as some other small parts.

754 · « **Reply #3 on:** March 27, 2016, 08:50:11 am »

Good find, who makes the unmachined cover?

kmb69 · « **Reply #4 on:** March 27, 2016, 09:02:25 am »

Man, I am SO jealous! Nice CR parts right there.

Honda wired the stator directly to each coil and the switch is on the ground side.
The stator/rotor has to be "timed" to deliver the coil power at the correct time.
Of course the fixed advancer has to be timed to fire at the right time. 35 degrees BTDC if I recall correctly.

Sure would like to have one of those NOS advancers in my hands to make a perfect replica. Anybody have one for sale?

kmb69 · « **Reply #5 on:** March 27, 2016, 09:05:22 am »

Quote from: 754 on March 27, 2016, 08:50:11 am

Good find, who makes the unmachined cover?

Carsten W. Conrads, I'm pretty sure.

napoleonb · « **Reply #6 on:** March 27, 2016, 10:32:09 am »

I got mine through Simon Tappin, but Carsten also makes them if I'm not mistaken.
It sounds like quite an ordeal to make this work on my bike, will have to figure out the best way of machining the cover without having to redo it.
Just took a look at my cover, and this seems to be made for 3 mounting points, instead of the 4 I've got on my generator perhaps this explains the -970 and -971 codes.