F4i - Main Forum Main F4i discussion board

A fried electrical connector and a few questions

Old 05-25-2018, 06:56 AM
Junior Member
Thread Starter
Join Date: May 2018
Posts: 8
Default A fried electrical connector and a few questions

Hello all,
New to the site, so thanks in advance for the help, and thanks for all Iíve already learned reading old posts.

i have an 02 600 F4i, new to me this spring. I started having charging issues a while back and Iíve tracked it down to the connector coming out of the stator being fried (at least thatís ONE problem that Iíve found so far.). Seems like it could be THE problem though. So I have few questions regarding that:
1. Is it possible to buy just that connector and splice it in (both sides are fried, of course.) Iíve been looking at parts sites and canít seem to find just that. Also, any recommendations on parts sites?

and 2: why did this happen? Should I be looking at the stator and r/r as well?

a little more info on the bike: the PO installed after market headlights that are super powerful... also a power commander. Not sure how much juice those use up, but the lights definitely use a good amount. Could they be overloading the charging system and have caused that connector to cook?

thanks to all
Old 05-25-2018, 08:43 AM
CaBaRet's Avatar
Super Moderator
Join Date: Oct 2016
Location: UK
Posts: 2,051

Here is one time that you can use Chinese
The Stator and the reg/rec can kick out a lot of heat , but check them out first before you spend anything.
Attached Files
Old 06-10-2018, 02:01 AM
Join Date: May 2018
Location: KC Missouri
Posts: 36

The reason this happens is because that connection handles a good amount of current. It is AC current coming out of the stator (yellow wires), I'm not 100% positive what the f4i has for voltage, but it's in the neighborhood of 50volts AC on each yellow wire before it goes to the rectifier to get turned into dc and lowered to 13.5-15v. Over years between all the ac current flowing through that connection, and general wear and tear (dust, moisture, etc) the terminals become corroded. Once the connection starts to go bad, it accelerates it's wear and gets worse fast, until finally the connection isn't good enough, and the connection starts to generate heat inside the plug because it has a high resistance.

This can also damage your stator (less likely) and your rectifier (more likely), although it doesn't always damage them.

I'm not sure where you can purchase a f4i specific replacement plug, you'd have to cut the old wires off, and replace the actual spade terminals. You also have the option of using ANY sort of male/female plug you want, just keep in mind, you want something that will have a GOOD SOLID connection. And when you reconnect them, you want to pack the plug with dielectric grease.

Another option is to solder the yellow wires directly from the stator to the rectifier. This is the best option connection wise, and their wires are separate of the main harness. The only issue is then your stator and rectifier are connected together until you cut or desolder them.

Whatever you do ,the end goal is a SOLID connection that can handle 50v+ ac on each yellow wire, and over 500watts of power through the 3 yellow wires combined. Also make sure you strip the wires back until you have FRESH copper wire, don't reconnect corroded, green/black wires. You want FRESH COPPER!

My charging system was fine, but my connection for hte yellow wires was all burnt up on this 2001 f4i I picked up. Since I'm re-doing my entire wire harness, I'm going to go ahead and solder my stator directly to the rectifier.
Old 04-19-2019, 06:42 PM
Junior Member
Thread Starter
Join Date: May 2018
Posts: 8

I'll post this somewhere that might be more obvious for people looking for info like this, but I wanted to share a great resource- It turned out that my r/r got fried the same time that that connector from the above post did, and I read a lot about the oe r/r failing a lot. After a lot of hunting I found this source, and the guy- Jack- is super friendly and helpful and has access to some great r/rs and makes custom harnesses and mounting hardware for them!
Related Topics
Thread Starter
Last Post
F4i - Main Forum
12-11-2016 04:31 PM
CBR 600F3
12-03-2013 11:08 PM
CBR 1000F "Hurricane"
07-17-2013 05:22 PM
F4i - Main Forum
03-30-2010 04:48 PM
F4i - Main Forum
12-23-2008 05:36 PM

Thread Tools
Search this Thread
Quick Reply: A fried electrical connector and a few questions

Featured Sponsors
Vendor Directory

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.