You know Unkie I thought along the same lines with the groove in the float bowl at first as it looked too neat, it could still possibly be that, but when I got thinking about it before I put it back on was it is lower than the tell tale hole for the tickler and thought it was just another place for crud to get in and fuel to spill out while you are throwing it around in the scrubbery, but if you have the same fish well who knows? yes something changed with the coils or at least the locating pins? yes I noticed the wheel on the wrong way
I just checked the nut and yes it has a chromed brass nut underneath on the port so thank you for picking that up and I will rectify it when cleaning it down, I dont think I will need to do anything as far as rebuilding the engine as it runs too well to be worn, and when I reasemble after cleaning I will be able to time it better before putting the head back on, it was just a guess of 3mm BTDC by shinning thw torch down the spark plug hole and using a Tallyhoe paper in the points, an old trick from the harley shovel heads and XT/TT yammy 500 days
a hacksaw blade to set the points gap (18 thou) and a Tallyhoe paper for timing
If not the best score, definatly the second best (I am a bit partial to my Auto)
