Could be a combination of all of the above. Could be
bad wiring from the ignition switch(giving low voltage
when hot), could be a sticky solenoid, could be
corroded wires at the solenoid. Could be a dragging
starter. Could be the ground strap on the
transmission. I fixed mine(1980 Westy)by rebuilding
the starter and solenoid, plus cleaning all the wires
and grounds.(two years ago) After doing all this I
have not had a hot start problem in two years. Didn't
need the hot start kit.. Phil

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