Question about 1991 Yamaha FZR 600
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Posted on Jan 02, 2017
SOURCE: charging system
I think 13.26 is very good for a bike of it's age. Especially charging a bigger cell battery such as a car battery! I wouldn't worry to much about your charging system looks to be doing just fine. almost sounds like your bike needs to be taken out for a Relief of sitting run.
Posted on Nov 10, 2008
I posted back in your initial post here. A few ideas to consider/try:
Posted on Feb 13, 2009
You need new regulator and new battery.The battery works as a filter as well.If it is in bad condition it does not filter anything and in high rpm the current is very high.
Posted on Jun 09, 2009
Common problem with poor quality parts, the regulator is the problem, the generator is working other wise you would not have fried the wiring, you answered your own question. someone telling porkies to get more money from unsuspecting client?
The regulator controls the voltage not the generator, the generator only supplys the voltage it cannot overcharge unless the regulator is not working properly, simple!
Posted on Jul 28, 2009
SOURCE: Bike won't start, battery bulged
Chances are it is the rectifier/regulator which is a sealed unit that has to be replaced if faulty. A bad one can cook your battery as well as your light bulbs and wiring. To check this connect a VOM across your battery terminals while the bike is running. If normal you should see about 13.5 volts. If your voltage climbs up to the 18 to 22 volt range or higher you must replace the part before you do further damage. Also be aware of the dangers of over charging a battery as it can explode and cause personal injury. If your battery has been cooked you will have smelled sulfuric acid and the battery will become hot to the touch. If that is the case you will also have to replace the battery as well as it will no longer hold a charge. When this happens the battery will bulge and this is called plate bow. By replacing both the battery and the rectifier/regulator you should be as good as new. In very rare instances it could be the stator which could cost a lot more but chances are its just the rectifier/regulator. I've seen them for very cheap prices on Ebay.
Posted on Aug 01, 2009
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