Kbear Posted July 27, 2022 Share Posted July 27, 2022 2007 VFR800. What is causing my battery to overheat? Could smell it [battery] yesterday. Link to comment Share on other sites More sharing options...
Member Contributer Bren Posted July 27, 2022 Member Contributer Share Posted July 27, 2022 Elektrikery!! If its getting very hot could be your reg/rec supplying too much load because it's kaput. About 18 years ago riding down 2 up from the UK to Switzerland on my beloved 94 Africa Twin my reg/rec went out on the French motorway. Got recovered and brought to a car garage who just swapped in a new battery. A few days later at a campsite in Switzerland there was liquid spitting out of the bottom of the bike, the battery was boiling and spewing out fluid! A visit to an (un)friendly Honda dealer had me a new battery, reg/rec and an empty wallet 😭 Switzerland is notoriously expensive! Link to comment Share on other sites More sharing options...
Member Contributer ducnut Posted July 27, 2022 Member Contributer Share Posted July 27, 2022 Best to get a voltage reading at the battery, while the bike is running. It would seem, you have an overcharge situation. Link to comment Share on other sites More sharing options...
Member Contributer Terry Posted July 27, 2022 Member Contributer Share Posted July 27, 2022 100% agree that this is a failed regulator. If the battery is cooking, you are also overloading other components in your electrical system. Link to comment Share on other sites More sharing options...
Kbear Posted July 30, 2022 Author Share Posted July 30, 2022 Thank you guys. Been really busy lately. I will be ordering a new voltage regulator very soon and will go from there. Thank you so much for the input it is really appreciated! Link to comment Share on other sites More sharing options...
Member Contributer Dutchy Posted July 30, 2022 Member Contributer Share Posted July 30, 2022 Order a small voltmeter at the same time and locate it somewhere on/near the dash. Link to comment Share on other sites More sharing options...
Member Contributer ducnut Posted July 30, 2022 Member Contributer Share Posted July 30, 2022 5 hours ago, Kbear said: Thank you guys. Been really busy lately. I will be ordering a new voltage regulator very soon and will go from there. Thank you so much for the input it is really appreciated! Don’t order just any R/R. There are countless threads/posts on the topic, on this forum. Do your research. Link to comment Share on other sites More sharing options...
Member Contributer Tirso Posted July 30, 2022 Member Contributer Share Posted July 30, 2022 6 hours ago, Kbear said: Thank you guys. Been really busy lately. I will be ordering a new voltage regulator very soon and will go from there. Thank you so much for the input it is really appreciated! What to buy and how to install https://vfrworld.com/threads/photos-of-no-drama-r-r-from-roadstercycle-com.54584/ I installed my rectifier on the rear subframe. https://www.vfrdiscussion.com/index.php?/forums/topic/98541-5th-gen-needs-new-regrectifier/#comment-1126648 I don't carry passengers or anything heavy on my bike so I'm not worried about drilling into the über stout rear subframe. You can read about cheaper/used options on pg2 this thread. https://www.vfrdiscussion.com/index.php?/forums/topic/99594-1998-to-2000-conversion/page/2/ Have fun! Link to comment Share on other sites More sharing options...
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