Wassell 6v positive earth DC regulator for my 1959 Tiger 110

[clive25]

Hi,

Just purchased a Wassell 6 volt positive earth DC regulator (ww10221p) for my '59 Tiger 110. The device has a green, yellow, red and black wire coming from it. The green and yellow no problem as they connect to the green/yellow on the dynamo as shown on Wassell's wiring diagram and the Triumph diagram. So far so good. However, this is where I become a bit thick!

1) According to their wiring diagram their black wire goes to the negative on the battery via a fuse where as the black on the Triumph wiring diagram goes to earth.

2)Their red wire goes to the 'field coil' (what's that?) where as the Triumph wiring diagram shows a purple wire coming from the original regulator and which goes to the light switch and then to the ammeter. No sign of any red wire from the original regulator!

I think you've gathered that I am useless when it comes to electrics - we just don't get on!. Can anyone explain to me in SIMPLE terms where the black and red wires should be connected to in relation to the original Triumph wiring diagram, preferably from someone who has fitted one to the same/similar bike. You can email me direct on clive.logan@btinternet.com. Many thanks. 

[Revband]

The wiring info supplied should tell you which colour wire on the unit is which, you will have one referred to as "D" one "F" one "E or positive" and one "A or negative".

"D" goes to the terminal marked D  on the dynamo "F" goes to F on the dynamo,  E or positive goes to the bike frame and A or negative goes to the battery negative through the ammeter.

These units can only be used on positive earth so if the battery is connected with the negative to earth you will need to reverse the battery leads to positive earth.

The field coil is inside the dynamo and connects to the "F" terminal on the end plate.

The original triumph light switch had a charge position as well as side and head lights this allowed the dynamo to be isolated when charging was not required, you can safely bypass this and take the wire direct to the ammeter with this electronic regulator.

[clive25]

Hi Revband ... thanks for taking time out to reply.

D (Yellow) and F (Green) are shown as being connected to the dynamo on both the Wassell and triumph wiring diagrams ... no problem there.

E is the RED wire which you say is to be connected to the bike frame. Does the E stand for Earth?

There is no A so I must assume that this is the BLACK wire shown on the Wassell diagram as being connected to the negative on the battery via a fuse.

The battery is connected with the POSITIVE to the earth. Does this all make sense? If so then I can wire up the Regulator? .... thanks again Revband.

[Revband]

Yes that makes sense the black wire must be negative if the others are as you say, E does stand for earth, just putting the black to the battery negative through a fuse  will charge the battery but the charge will not show on the ammeter, for the ammeter to show when the battery is charging the negative must go through it from the regulator to the battery.

[clive25]

Thanks again Revband ..... very much appreciated. I've been waiting all day for Wassell to return my call ... joke! Not impressed! Now I can continue finishing the wiring thanks to your help ...........cheers .........Clive