Hi, I have a 1986 honda shadow vt 1100 c. when thermoswitch went out bike gets hot, (Fixed switch), one cylinder goes out no power, even After fixing fan switch.. when checking ohms for pulse generators they should be 450-550 ohms (from the book).. I get 400-405 ohms..Is this enough to have to change them??? Or is there some other problem?? I had the coils bench tested and had a load put on them they seem fine..thank you for your time....