Question about 2004 Yamaha YZF-R1
ELECTRLYTEBATTERY WONT CHARGE
Posted by Anonymous on
Hi, Anonymous in order to check out any main electrical system, you have to start with a fully charged battery 12.5 volts or better, and be able to pass a load test if necessary. "WARNING" never plug or unplug any electrical connector with the engine running !!!
1. Check battery terminals for damage or corrosion, check battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
2. Check the voltage drop at the battery when you hit the starter button, anything below 9 volts you might have a faulty battery.
3. Check voltage at the battery with the bike running at 3,600 RPM should be 14.3 to 14.7 volts. If you are not getting these numbers, you might have a faulty voltage regulator.
4. Make sure voltage regulator is "GROUNDED" and functioning properly, watch the video below on how to test a voltage regulator.
5. Unplug the connector to the alternator and hook your multimeter leads to the alternator (pin/socket selection does not matter) set the multimeter to AC volts, at an idle the multimeter should read 16 to 20 volts AC. at 2,000 RPM 32 to 40 AC volts, 3,000 RPM 48 to 60 AC volts. If you are not getting these numbers, you may have a faulty rotor, follow step 6
6. Set the multimeter to OHM'S, connect one lead to the alternator (any pin/socket) and the other to a ground, the multimeter should read infinity. Connect both leads to the alternator multimeter should read 0.1 to 0.2 OHM'S. If you are not getting these numbers, you have a bad stator.
7. Check all wiring in the charging circuit for worn or chaffed spots and all wiring connectors in the circuit for corroded, broken, or loose pins/sockets, which is the # 1 offender.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
battery is not charging pls help
2004 2005 Yamaha YZF R1 Service Manual R1 Moto Data Project
OEM parts for Yamaha
Posted on Aug 18, 2016
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Posted on Jan 02, 2017
Hi and welcome to FixYa,
No charge to the battery could be caused by:
To determine which, initially visually inspect the wiring and its connectors from the stator to the rectifier/regulator combo. Thereafter, a DVM/VOM is required to measure the AC voltage output of the stator (~30VAC), the DC voltage output of the regulator (~14.5VDC @ 4000RPM) and engine off battery voltage of ~12.5VDC. It maybe to your advantage to have the battery load tested as well.
Good luck and thank you for asking FixYa.
Posted on Nov 08, 2009
Please check for power on the starter side of the start solenoid - remember to press the start switch when measuring. Should be 0 until you press the switch, then should be 12 V on the DC scale.
Need more help, post here. I want to help you get this fixed.
Thanks for posting at FixYa.com
Posted on Dec 23, 2009
Testimonial: "tnx it help me a lot"
SOURCE: yamaha r1 2007 showing false
i did unplugged my servomotor of my r1,due to damage caused by recent flooding.as i switch on the key,it indicates number 17,18.What do this number stands for?Also,will it harm my engine,disengaging that servo?
Posted on Mar 14, 2010
SOURCE: have 2005 yamaha roadstar wont
Here are a few things to try to help you diagnois your problem.
1.Check for corrosion on battery terminals and the fuses.
2.Fuses are good - Did you check the fuse on the top of the solenoid?
3. Take a screwdriver and jump the solenoid wires to start the engine. If it starts, then your starter is good. (could be a bad solenoid - but lets check some wires first)
Your solenoid operates when you hit the start button.
Your start button won't work until you turn the on/off switch on.
Your on/off switch only has power when you turn the key on.
4 Use a test light to test the following:
Right Handlebar switch house - Test to see if you have power to on/off switch - Turn your ignition key on & off to see the testlight come on - if light comes on that means your igntion switch is good. If no light, the problem is in the igntion switch. or the main fuse to the igntion switch is bad.
If the light came on then you have power to one side of the on /off switch - test the on /off switch by turning it on and off. When switched to on you should have power to the other side of the on/off switch which is sending power to the rest of the bike which includes your starter button.
Test your start button with the test light by putting the test light on the solenoid - Turn key on - turn on/off switch on - push start button and see if the test light lights up. If the test light lights up that means that your solenoid fuse may be bad. It is located right on the top of the solenoid. If the fuse is good then that means your solenoid is bad. Replace it with a new one.
If the Test light did not come on then your starter button is not making contact and needs fixed or replaced.
So follow the power with the test light until through each component until you come to the faulty one.
NOTE: If its a blown fuse, check your wiring. You'll have to find out why the fuse blew and fix it or your fuse will just blow again. Could be a short somewhere, installing a battery wrong will blow fuses.
Posted on Dec 03, 2010
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