Street/Golf Switch?

longld

My HD 1974 Electric has a switch between front seats that is labeled Street and Golf. It does not seem to make a difference in speed and looks like an owner add-on - any idea what this might be - will trace out wires soon - could be a way to switch on power to lights/horn to make street legal? All of my lighting is being rebuilt now so cannot do a quick test.

BGW

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longld

Ok, found it is connected to a seventh 12v solenoid that is mounted in front of another solenoid - appears to short across the S1 and S2 leads of the electric motor. I have tried all types of driving in both switch settings and cannot find a difference - have not tested to see if solenoid is actually engaging. None of the manuals I have show a seventh solenoid - appears to be a designed bracket - not a homemade job.....

Revolution

If would appear its not working.

Shorting the S1 and S2 connections is call field weakening or field shorting. It will increase the RPM of the motor at the cost of torque. Thats the short version. Heres the long discussion.

http://www.buggiesgonewild.com/elect...st-button.html

Revolution

Its not something you would want to turn on and leave on. Its more of a get up to speed with the switch off then turn it on for an increase in speed then turn it off as soon as you don't need it or you hit a hill and need torque again.

Having the switch on from a stop could damage your motor.

The link in my post above will cover all the pros and cons of using field shorting.

longld

Fantastic response - I saw that it was shorting the field coil but did not understand why? I am going to remove - too much risk and looks like I would have to work on the solenoid also. You could use a momentary push button but that could short out and......at my age, I am all about reducing risk - thanks again for sharing the expertise.