I had same problems with my Eutikia SM
For rendom start look at red cable on start
motor: the connection may be slack/oxidised. Anyway remove and
fasten it. The contact MUST be perfect and steady.
For rendom shut down look at solenoid. Replace
it or spry antoxidant inside from top. You have to remove the
black rubber cover button. Than push it many times.
I hope that may help.