Did a voltage check and when tuning the ignition switch with probes plugged into the connector the multimeter gave me 12v, so I thought I would give a shot at fixing / service the pump.
The main culprit was the pump points as once cleaned and touching I got continuity between the positive and ground. I also added a Hack to prevent excessive arcing coming off the points.
here you wish to read more about the pump hack follow the link. it breaks it down.
http://hankeln.net/freizeit/nt650v5/fue ... de_en.html
So first thing to do it is remove the pump from the bike. Then undo the little brass screw on the cover . When you open it up you should have something like this
I have marked the positive wire with red circles and the ground/negative with a green circle. The red circles is where you want to connect your diode if you want to do the hack/mod.
In the next picture you will see the pump points, if you look close enough you might be able to see how dark the points are.
the next step is to clean the points. A simple emery finger file will do. you don't need to aggressive just need to a 10-20 swipes and it should be shiny again. Pictures Below
If you want to do the hack/mod you will need to buy silicon diode 1N4007 . they are 99p off ebay for a pack of 10.
Make sure you solder it the right way round, the grey solid circle should be soldered to the incoming wire, I also used a pliers to conduct heat away from the diode when soldering. Also you want the diode to be higher than the joints so the cover can go back on easily. When done you should have something like below
I then used resin to insulate the connections to prevent a short circuit. Picture Below.
Leave the resin to dry or you can use a glue gun if you are in a rush.
re-assemble and re-install on the bike.
If you want to see how to hack works, you can watch the following video.
https://www.youtube.com/watch?v=ABd-Leis9xw
