Thanks to all for excellent comments :-).
First I agree that I can not trust the resistance measurement to much and after practicing the horn push a number of times it look better. After all if one use the horn very seldom it is not surprising that things does not work properly all the time.
I will improve the earthing of the push house to the steering column and I will also consider to exchange the two horns from 2001 with new ones and look for some with lower power level as the normal 60 -70 Watts
Once again thanks to everyone. Talk Morgan is really wonderful!
BR. //. Hakan
