what should be voltage when standing still - MVAgusta.net
 
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post #1 of 10 (permalink) Old 01-15-2011, 01:23 PM Thread Starter
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what should be voltage when standing still

ok basically either something is wrong with my electrical system or i just have a bad battery.

1 week old bike, brand new.

voltage across terminals standing 12.5 or 13.34 just after taking off tender.

starting up = 10.4 or less regardless of standing voltage.

voltage after startup at idle 14.3
voltage after riding 15 minutes and now bike is idling and both fans are on the radiator 1090rr voltage = 13.3v
when you rev the bike up to 5k the voltage across terminals goes back up to 14.3v

is this all normal?

could it be a faulty alternator/voltage reg or just a bad battery?
thanks.
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post #2 of 10 (permalink) Old 01-15-2011, 01:30 PM
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Originally Posted by roadbiking View Post
ok basically either something is wrong with my electrical system or i just have a bad battery.

1 week old bike, brand new.

voltage across terminals standing 12.5 or 13.34 just after taking off tender.

starting up = 10.4 or less regardless of standing voltage.

voltage after startup at idle 14.3
voltage after riding 15 minutes and now bike is idling and both fans are on the radiator 1090rr voltage = 13.3v
when you rev the bike up to 5k the voltage across terminals goes back up to 14.3v

is this all normal?

could it be a faulty alternator/voltage reg or just a bad battery?
thanks.
That sounds about right. What model is this?

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post #3 of 10 (permalink) Old 01-15-2011, 01:37 PM Thread Starter
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its the new 1090, but the funny thing is that if the bike sits outside for a few hours on a cold day the thing won't start, you just get the click from teh solenoid and then i need a jump start.

so far its left me stranded outside 2 times on different days granted both days i rode the bike then parked it at work for 5-8 hours in 30F weather and then tried to start it going home and no cranking at all. all the regular lights/fuel pump on but nothing as far as starting. needed jump start both times to get home.
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post #4 of 10 (permalink) Old 01-15-2011, 02:33 PM
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check the starter relay page E-27.....

run 12V directly to the starter, BE CAREFUL, connect to the starter then the battery, leave the key off

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post #5 of 10 (permalink) Old 01-15-2011, 03:46 PM Thread Starter
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what should i be checking for with the starter relay?

is there any way to tell if the starter relay is malfunctioning?

so by connecting the starter directly to the battery the starter should just turn but the bike won't start since the key is off right?
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post #6 of 10 (permalink) Old 01-15-2011, 07:29 PM
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Quote:
Originally Posted by roadbiking View Post
ok basically either something is wrong with my electrical system or i just have a bad battery.

1 week old bike, brand new.

voltage across terminals standing 12.5 or 13.34 just after taking off tender.

starting up = 10.4 or less regardless of standing voltage.

voltage after startup at idle 14.3
voltage after riding 15 minutes and now bike is idling and both fans are on the radiator 1090rr voltage = 13.3v
when you rev the bike up to 5k the voltage across terminals goes back up to 14.3v

is this all normal?

could it be a faulty alternator/voltage reg or just a bad battery?
thanks.
Sounds right to me, take it back to the dealer, B4 you mess something up and loose your warranty. My money is on the battery being stuffed.

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post #7 of 10 (permalink) Old 01-15-2011, 07:56 PM Thread Starter
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i told the dealer this stuff and he is saying bring the battery back and exchange it, guess he wants to try the easiest thing to fix first.
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post #8 of 10 (permalink) Old 01-16-2011, 10:05 PM
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Battery open voltage should be 12.8 1 hour after taking off t a maintenance charger.
Your voltages all sound good, except for that 12.5 after coming off charger. That is not a good reading. Battery capacity is dropping to quickly. Probably not maintained while awaiting your purchase. May be recoverable with a proper de-sulfating charger (optimate3+).

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post #9 of 10 (permalink) Old 01-17-2011, 03:53 AM
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roadbiking - Bike is "1 week old bike, brand new." = Dealer responsibility don't mess with it just get replacement battery because it doesn't sound healthy to me either...
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post #10 of 10 (permalink) Old 01-17-2011, 04:44 AM
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Originally Posted by Donsy View Post
Sounds right to me, take it back to the dealer, B4 you mess something up and loose your warranty. My money is on the battery being stuffed.

+ 10 on wot Donsy said.

Don't start messing with heavy duty current around that solenoid..take to dealer..their problem not yours
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