Just come back in from the garage after putting it all back together. Same fault as before straight into cool down, then after 3 spin ups the ready light came on so did start up procedure & blow me she fired up perfectly onto gas & then onto fuel,shut it down due to being inside garage.
It did cool down sequence then ready for restart. Started perfectly again about 5 or more times.
Had a break then retried, again straight into cool down sequence but again after 3 or 4 spins ready light comes on & she fires up perfectly.

It seems that the overtemp sensitivity is to close too ambient temp. e.g. as soon as gas fires up within a second or two the fuel pump starts to ramp up.

Question, Inside on the pcb board is the mag sensor plus associated diodes, then there is the connector block for the thermocouple wires & along side it a white block with screw on its side. Is this screw for temp adjustment ???? or for something totally different.

Any help will be appreciated.

Thanks
John