Jump to content
Sign in to follow this  

91 Honda XR250L is not charging the battery

Recommended Posts

I replace the rectifier twice, the stator twice and I'm about to install a used flywheel off ebay. I've done all the necessary test, which I think I did properly. I'm using a Cen-Tech Digital Multimeter. For the DC test on the battery I'm see no increase when runningicon1.png (12.2 volts when running and 12.5 when not running). When I test the rectifier after the stator AC power goes through it (running) I get about 4 to 6 DC Volts. When I test the 3 Pole Stator wires (running) I get about 6 to 10 AC Volts. Now when I'm using the Meter I set it to ACV 200 for the Stator test and DCV 20 for the Battery volts test. I know I should be getting 13.7 to 14.4 DC Volts when I test the battery when running and I should be getting 50 to 80 AC volts from the stator when running. I found a used flywheel on ebay for 22 bucks and I'm about to put it on, but also would like a second opinon what could be the problem. My other Question is could the stator it self be grounded out by something on the bike from making it only put out the little of volts.

Share this post


Link to post
Share on other sites

When you test the 3 pole stator wires you should be getting a LOT more ac volts than what you are. Somethings up with the stator. Is it brand new? Aftermarket or oem?

Share this post


Link to post
Share on other sites

Test the stator under load with a 60w light bulb. Disconnect the three yellow wires from the reg/rec. (it doesn't matter which order you reconnect them later). Test each of three pair of yellow wires with the light bulb. Rev the engine. The bulb should come to full brightness on each phase (pair).

Share this post


Link to post
Share on other sites

When you test the 3 pole stator wires you should be getting a LOT more ac volts than what you are. Somethings up with the stator. Is it brand new? Aftermarket or oem?

Yeah I replace the stator with a junk yard one first and the second one is brand new aftermarket. There both putting out the same ac voltage, between 4 and 7 volts. which i knows its supposed to be 50 to 80 ac volts

Share this post


Link to post
Share on other sites

See what happens after you replace the flywheel. Hopefully that works.

Share this post


Link to post
Share on other sites

Problem solved! It was the flywheel!

That is not uncommon. The magnets get weak and will not raise the voltage up to where it needs to be. Some older

manuals cover this. Now days the manufactures skip this info so you will seek the dealer to fix the issue. See link.

http://www.pentonrac...cts.com/pvl.htm

Edited by ohio rusty spokes

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Reply with:

Sign in to follow this  

×
×
  • Create New...