Steve Saunders Goldwing Forums banner
Status
Not open for further replies.
1 - 13 of 13 Posts

·
Premium Member
Joined
·
279 Posts
Discussion Starter · #1 ·
I have installed a mini denso alt on my bike, does any body know which plug pin is for the exciter? also what gauge for the charging wire? thanks.
 

·
Junior Grue
Joined
·
8,153 Posts
For the charging wire 10 gauge will do and if possible make it RED so you know it's live.

For the exciter the alternator should have a I terminal which should go to a switched ignition source.
 

·
Premium Member
Joined
·
948 Posts
Go to Autozones website, look up the alternator that you have, probably '95 Geo Metro. There is a diagram there that shows what the pins are for. The ignition pin is the exciter. The lamp pin can be used for an idiot light by connecting it to one side of a light and connecting the other side of the light to another positive power source. I used 12 gauge wire for the output and connected it to the battery side of the starter solenoid. 10 or 12 gauge is fine, compare that to the size of a wire inside of a 50 amp fuse or the size of a 30 amp dog bone fuse.

Scott

Picture those terminals making an upside down U , the terminal on the left is the ignition terminal, the terminal on top is a dummy, the terminal on the right is the lamp terminal.
 

·
Premium Member
Joined
·
948 Posts
I believe that while tack welding my brackets the voltage regulator was fried. If this happens to you it is easily replaced on the back of the alternator.

Scott
 

·
Premium Member
Joined
·
279 Posts
Discussion Starter · #7 ·
1984alt wiring

First I want to thank you guys for putting me on the right track. I looked at a 10 gauge and thought it was too big. the parts store has red 10 gauge with hook ups on both ends, six dollars. you cant beat that with a switch.:)
 

·
Premium Member
Joined
·
2,790 Posts
8 ga wire is what the recc size is,better to to safe than have a problem later
 

·
Premium Member
Joined
·
279 Posts
Discussion Starter · #9 ·
wiring for alt 1984 interstate

Does the charging wire go straight to the battery post? I have read some post about putting a fuse in line for that. cars are straight to batt and no fuse.
 

·
Premium Member
Joined
·
948 Posts
I connected the charging wire to the battery side of the starter solenoid because I don't like a stack of terminals on the battery. I didn't use any fuse. The bike is protected by the main fuse at the solenoid. Batteries and alternators aren't usually fused anyways.

You can connect the charging wire to the battery or the solenoid, either works.

Scott
 

·
Premium Member
Joined
·
948 Posts
I also added a ground wire from a screw on the alternator body to a bolt on the bike frame that holds the bracket for the rectifier/regulator. There are other wires grounded there also. It would be awful chasing down an electrical problem in the future that might be caused by a bad ground at the alternator.;)

Scott
 

·
Premium Member
Joined
·
250 Posts
For the ignition wire we used the blue wire at the stock regulators connector. Run it to the plug on the back of the alternator. There are two terminals at that plug on the alternator. One goes to the blue wire and the other was for a idiot light that would be in the dash of a car telling you that something is wrong in the charging system. We also used a #8 wire to the battery with a 50 amp circuit breaker in line. Good luck. You will not be sorry you went this route.
 
1 - 13 of 13 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Status
Not open for further replies.
Top