VW TRIKE WIRING

 
 
 

WHY SHOULD I USE RELAYS?

Why switch an electromagnet just so it can control another switch? Why not just use one regular switch? One important application is illustrated in the diagram below.

 

 

When the ignition key is turned all the way to the "start" position, it allows electricity to flow to the starter solenoid (relay) which then connects the battery to the starter motor. So why do we need this solenoid "middle man" ? Couldn't we just eliminate it and connect the ignition wires to the + battery terminal and the other wire to the starter motor? The important point here is that the electromagment is using a small amount of current to control a large amount of current to the starter motor. (Remember that the electromagnet and the switch are NOT connected electrically). Have you noticed that all of the wires (except the ignition wires) are purposely drawn with thick lines? The reason being that some circuits (such as the starter) in a car require a tremendous amount of current. (If you look at an automobile's battery cables, you will notice they are quite thick.) Connecting the ignition wires to the battery and then to the starter motor would cause these thin wires to conduct much more current than they were designed for. These wires would become very hot and the insulation would start to smoke. (The same would hold true for the ignition switch) or the switches on your handlebars.  After starting the car for just a few times, the wires and the switch would be in bad shape.

          We do have a second choice. We could use thick battery cables for the ignition wires and use a heavy duty ignition switch. This isn't very practical either. Do you think it would be easy to squeeze cables into the steering column and to squeeze in a heavy duty ignition switch too? Therefore, the use of a solenoid is the most practical solution.

 
 

FUSE/RELAY/STARTER

ANOTHER VIEW OF THE STARTER DIAGRAM WHICH INCLUDES A ELECTRICAL FUEL SHUT OFF VALVE
   

 

 

 

 

Follow this link to purchase the Fuel Shutoff Solenoid

12 Volt Multi Fuel Shut Off Valve

 

 

 
   

BOSCH AND MOTOROLA EXTERNAL REGULATOR ALTERNATOR WIRING

 
   

Volkswagen supplied Alternators and Voltage Regulators from two sources during this model year period that utilized External Voltage Regulators. The Motorola Voltage Regulator (See Figure # 1 below) is no longer available, but the Bosch Regulator (Bosch 30 049)(SeeFigure # 2 below) can be used with either Alternator if the mini-harness/receptacle supplied with the Voltage Regulator is utilized. Please note the slight (but important) differences in the two diagrams below. Note that the Blue Wire coming from the Motorola Voltage Regulator

  

 

   

 

 

GENERATOR WIRING GUIDE

REAR WIRING

 

 

   

RUNNING AND BRAKE LIGHTS

GAUGES
   

   

EXTRA LIGHTS

TURN SIGNALS
   

   

            TACH WIRING

AMP METER

Have your maximum alternator output tested. Choice of improper ammeter rating and/or wire size, and any loose connections can cause dangerous overheating, which could lead to a fire in the vehicle. Ammeter and wire should have a capacity of at least 10 amps more than your vehicle's maximum alternator output.

1.  . Disconnect negative (-) battery cable. (Wear safety glasses.)

2. 10 GA wire or larger must be used

3. IMPORTANT: Verify that base nuts on both meter terminals are tight.  Tighten base nuts prior to installing terminal lugs and wires. 

s CAUTION

DO NOT CONNECT THE AMMETER ACROSS THE BATTERY

Example wiring of a typical Ammeter installation Consult vehicle Mfr. for specific wiring details and safety considerations.