ok tonight's instalment, put the advance cable and HT pickups and leads on the original mag span it up lovely spark from both plugs and then succeeded to drop it on the floor no problem I thought landed on carpet gear end first..... fitted and timed but bike would not start, nothing, zilch.
Checked and yep no spark, so removed mag stripped it down and checked everything and all was ok resistances etc but I found that when I tightened up the points centre screw the primary windings were shorted out, if I didn't do the screw tight so it was just nipped it was fine and sparked Tighten it up and boom no spark (can anything else go wrong)(and it took a long time to find this out) so out of desperation I tapped the screw once tight with a mallet and it seems to be working ok but there is obviously some damage to it somewhere.
Re fitted mag, refitted carb, kicked, started and yep you guessed it not running quite right and rear cylinder once again much hotter than front...... removed plugs and front plug sooted up again removed carb and fuel in inlet manifold.
Was about to give up again for the night but grabbed a spare carb I had, fitted the jet and fload chamber etc from the original carb started her up and it seemed to be running not to bad, left it running and low and behold both cylinders about the same temp left running for a bit then stopped removed plugs and both looked about the same (front maybe a tad blacker but only just)
After a dance around the garden I removed the carb thinking it would be dry in the inlet manifold but there was still fuel In there so I am completely stumped as to why a carb that worked fine last year has decided to just soot up the front plug....
Lets see what tomorrow and maybe a ride out brings.