Stator issues.

[posplayr]

I had already planned to replace the connectors on the R/R as they looked like they had gotten very hot. This probbly didn't do the original stator ny good. I had also planned on cleaning the grounds and doing resistance checks on them

Read through this

http://www.thegsresources.com/_forum/showthread.php?t=152769

[Steve]

No offense.....just saw you guys were talking about stators figured I would ask a stator question, Sorry!

Might sound logical, at first, but when the answers start coming, nobody will know which question is being answered.

.

[rasndas]

Very good thread and looks fairly simple to do. I always wondered about some of the grounds. Especially the one on the R/R which in my case is screwed into the plate which mounts the fuse box, R/R and solenoid. This plate is in turn bolted to the frame so I see lots of potential for poor connections and besides steel is not the best conductor either. Single point ground and soldered connections look like the way to go.

[rasndas]

Replaced the stator with the new elecktrosport unit this weekend. replaced corroded connectors and siglepoint grounded. Started bike and out put was 14.4 volts at about 2000 RPM. revved to 5000 RPM and voltge dropped to 13.1. Shut off bike and looked at all connections. Did this about 3 times with the same results. What finally occured to me was when the regulator was cool it put out 14.4 volts. as soon as it built any heat ( warm to the touch). Voltage dropped to 13.1. Looks like I will need a regulator also. I wonder if in the grand scheme of things something went south in the regulator first which then cooked the stator. Any thoughts?

[posplayr]

Replaced the stator with the new elecktrosport unit this weekend. replaced corroded connectors and siglepoint grounded. Started bike and out put was 14.4 volts at about 2000 RPM. revved to 5000 RPM and voltge dropped to 13.1. Shut off bike and looked at all connections. Did this about 3 times with the same results. What finally occured to me was when the regulator was cool it put out 14.4 volts. as soon as it built any heat ( warm to the touch). Voltage dropped to 13.1. Looks like I will need a regulator also. I wonder if in the grand scheme of things something went south in the regulator first which then cooked the stator. Any thoughts?

Unless it is getting very hot (it hurts to hold your hand on it +120 deg F) the R/R is OK . When the voltage goes up like that and then drops it is more likely a bad connection in the positive side of the charging system. Clean your fuse box out and connections on . This is detailed in the revised stator pages and described in the link I sent before.

What are your voltage drops from steps 2 and 3?

Finally STEP #3.) Perform Stator Paper Checks. The stator pages checks are not perfect, but they are designed to help you through a process of elimination in determining what is wrong with your charging system. The good news about doing steps #1 and #2 above first, is that when the stator pages say to check your connections you know you already have done it. Here is the update.


http://www.thegsresources.com/statorpapers4.php

Link to Revised PHASE A of Stator Pages:


ORIGINAL_STATOR_PAGES

The most important thing will be to make sure every thing checks out at 5000 RPM which is typical cruising speed. You might find that you will need to clean your fuse box to get the positive side voltage drops below 0.2V at 5000 RPM. In steps #1 above you should of gotten most of the connections between the R/R(+) to battery (+) in good shape except the fuse box.

[rasndas]

Had a chance to trouble shoot further this weekend and it appears the R/R unit is the problem. With the bike running at about 2000 rpm and the R/R cool voltage was 14.5 volts. After about 3 minutes the R/R warmed up (not hot just warm) and voltage dropped to 13.0 ( battery voltage). Using a cool can, While the engine was still running, I chilled the R/R unit down and voltage went back up to 14.5 volts. after about 3 minutes it warmed up again and voltage dropped to 13.0 again. Repeated this twice with the same results. One of the semiconductors in the R/R is toast.