Burls

Thanks for the reply Brian. I have managed to work out the wiring and found the points were not conducting and also set with no gap. I now have spark and onto the next part of the puzzle the carby. It is very gummed up with dried fuel(white powder) so have been soaking for the last few days. Hopefully l can get it apart and don’t break anything

Pic of coil plate for reference. The yellow and the yellow/black wire come off the trigger coil the brown off the earth post on the plate and the black off the condenser

Some update l have contacted Ransome and have all the manuals l need but still no wiring diagram for the 4 wires coming from the coil plate. Compression is around 80psi so believe this would be enough to make noise -be it good or bad. So far l have not been able to get it to start due to it not producing a spark. I have tried a new plug and checked the coils, condenser and points for serviceability and they all look acceptable. I don’t have any tested to test coils or condenser. This is a non battery, non elec start model.

Hi all, new to the group, found whilst searching for mower info but l am also into RC and from the land down under l have acquired a Ransome mastiff 30”, which has not been used for about seven years, this maybe because it does start. ATM it does not have spark, plug checked and changed - no fix. There is 4 wires coming from the case, yellow, yellow black, a brown and a black. These went to a terminal block but that’s it. Does anyone know where or how these are routed?

Hi all, just jumping on the end of this thread, be interested to know how you went. I have a similar Mastiff but not cdi. I am currently looking for a diagram to show the 4 wires from the magneto. Colors are Yellow, Yellow/Black, Black and last one is Brown thanks in advance Burls