Changing & setting 6V points by Francois Roux
For a correct access and easy work, I advice to remove the front wheel as well as the mudguard.
Remove the protection case by unscrewing it.
Beware it's a delicate alliage, and when putting it back don't squeeze the screw too much, you might break it.
I needed to have it welded, and it's aluminium, so it's a bit hard to find a guy that could do it..
Remove the light brown bakelite cover by sliding the lever.
For easy work, I used an old piece of metalic hanger, to have the cover permanentely open.
There you are. Turn the engine with the quickstarter, so to turn the rotor and make possible the access to the 'hidden' screw.
Remove the screw and the rotor by pulling it forwards gently.
You can see the points, with the fix contact and the moving one.
Once again, turn the engine thanks to the quickstarter, untill the contacts are wide open. Note that the rod connected to the camshaft is not round. Therefore, opening the points means to have the contact of it, on the highest part of the camshaft rod.
Then for fun, you can measure the space between the contacts. Mine was 0. 7mm, while 0.45mm is recommended.
I decided not to tune them up but to change them directly.
Unscrew the left screw of the lower contact, it comes out easily. The other screw is for adjusting the correct gap. Leave it in place. You need to use a 6mm wrench to remove the fixing screw of the upper point.
Then pulling gently the point, will allow you to remove it easily with it spring.
Then, proceed exactly the opposite way to put back in place the new points.
Before putting the new points, use a soft tissue and some drops of solvant to clean the case from carbon dust. When screwed, adjust the space between the points by using a measurement guage and screwing/unscrewing slowling the lower tuning screw. According to what I read, it must be 0.45mm, so I used alternatively the 0.4 and 0.5mm guages to adjust everything properly.
You just need to turn again the engine with the quickstarter to make a 180 round and check the gap between the point with your guage. It must be the same 0.4-0.5mm. Put back the rotor after cleaning softly with solvant, the light brown bakelite cover and finally the dust aluminium cover. Crack your engine, and that's done!