2002 Honda vfr 800 charging issue

so my battery died while i was deployed as i was stupid and didnt leave my battery tender on it, i came back and rode it for a few days after i had the battery charged up.

but now after i start and run it , the battery seems dead and it wont restart, could it be a bad battery? bad starter solenoid? the stator not recharging the battery while running? im at a real loss as i dont really deal with electronics on vehicles im more of a wrench turner.

does anyone have what the battery volts should be? or any way how i can test where the fault in my system is?

 

Take the battery to a Auto parts and have them do the load test. Your battery might be toast and need to be replace.
Stay calm we will get your bike back and running. Before we go any deeper check the battery for voltage report back

 

A fully charged battery should be 13.2 volts dc. Battery has 6 cells @ 2.6 vdc each. Less than 12.5 volts after charging, battery has problem.

Check other threads on electrical problems, check all connectors for corrosion which limits current and produces heat. Check for discoloration on any connector, especially the 3 conductor connector for the stator wires.

Charge battery, do NOT try and start with jumper cables from another vehicle.

 

I always recommend a new battery if is over a year old and discharged for more than 90 days. If one of my bikes even gives me a hint that the battery is gonna give me a problem I will toss a new battery in it if two or more years old. Batteries are not expensive enough to off set the f'n hassle of being 200 miles from home with pushing as your primary option. Change that first and check from there if problem persists. My two pennies.

 

+1 on Toe comments.

Before getting worried about things like dead RR's and fried Stators, the first thing you need to do is check the health of your battery, and as necessary replace it. If the problem persists after the battery has been replaced or tested OK then post up again.


Given the bike has been sitting for a long while, it is quite likely the battery was fully discharged. So despite having the battery recharged it may have been damaged and is no longer be able to hold its charge and just needs replacement.


Hopefully the following will help you work out whether its time to replace the battery:


Beg borrow or steal a multi-meter, set the dial to test for DC volts, then choose a voltage range above the notional 12 volt of the bike systems - so set to something like 20 volts (or more). Red lead on + battery terminal Black lead on - terminal.

A healthy charged battery without any load will put out around 12.7-13.2 volts. Numbers will drift down as the battery ages. However if you also have any constant drains on your bike - like an alarm system to contend with, I would consider fitting a replacement once the standing volts regularly hit 12.8.

If the standing volts seem fine, then skip the next bit, but if the numbers seem borderline, then you can carry out a crude but reliable assessment of your battery health as follows -

To test battery: (original Yuasa type) - remove from bike and trickle charge overnight with a decent Optimate type digital charger until it is fully charged. The digital chargers won't over charge/cook the battery. So next morning ...

- End of charge volts should be 12.7-13.2V
- Connect a load to the battery (any old 21W indicator bulb should provide enough drain)
- Check voltage every 30mins or so and see how long it takes for the battery volts to drop to 12.3V
- Less than half hour = Totally dead battery - bin it!
- About one hour = Virtually dead battery - needing replacement now!
- More than one hour 30 = battery is still serviceable - but will need replacing soon
- More than two hours = Good battery.

If you are still not sure about the battery this website will tell you pretty much all you will ever need to know about motorcycle batteries.. http://www.whitedogbatteries.com/

Good luck



SkiMad

 

Wow thank you everyone for the quick reply. I took it to the auto story battery tested at 12.19 volts . and under load testing it said bad battery . so next question is any recommendations on batteries ?? This one was a ETZ12S AGM super start power sport from O'Reillys . the only stores here in MD are auto zone and advanced auto but I do not believe either carry the correct one unless someone can supply a different battery part number

 

Go to Amazon they ship to your door
Yuasa battery http://www.solomotoparts.com/gsearch.php?mode=search&page=1
Ballistic battery also great one if you need to drop several pounds (Will not work well in extreme cold weather)
http://www.solomotoparts.com/Ballistic-Battery-8-Cell-EVO-2-Lithium-1lb-10oz/

 

AGM Gel battery on fleabay for 35 bucks has done me right for a year and still spinds motor over just as fast as 1st time

 

Thank you ! Does anyone know if the 9bs series battery will work it has the same cranking amps and volts just 1 ish less amp hours . and its a tad shorter than the 12s battery

 

The YTX9-BS was the OEM battery fitted on my Street Triple which has a much smaller 675cc engine. Even new it was marginal in performance and especially if you don't use the bike daily, it did not take long before it struggled to start. When I got fed up having to use jump leads to start the damn thing, I went the other way and managed to put the bigger VFR battery into the Street Triple and its night and day better, first time every time.

The smaller battery will probably be OK if you only ride in the summer, but when the temperatures start to fall you will regret not having that extra Cold Cranking capacity 120 compared with 180. Compare the two battery specs on page 8 of this list and you will see there is a big difference

http://www.yuasaeurope.com/images/u...y_Application_and_Specification_Catalogue.pdf

Please don't go for the smaller lead acid battery!

If you really want something which is physically smaller and also a lot lighter, then I suggest you look at equivalent or larger capacity Lithium Ion Motorbike Battery. As you will see they are not cheap and make sure you read up on the pro's/cons of lithium batteries such as this one http://www.ebay.co.uk/itm/331103953357




SkiMad

 

2.6V / cell is above the maximum charging voltage, 2.45V per cell is recommended @ 20°C/70°F.
A lead/acid battery has 6 cells @ 2.13V each when fully charged. Resting voltage in a fully charged l/a-battery is 12.78V

 

You are right, should have checked first, memory isn't what used to be.

 

If youre in a bind, Walmarts carry that battery size for about $54 FYI and Walmarts are virtually everywhere.