Hey all, question about battery and charging system

[Rikoman]

Hi guys, how's everybody?

so, I got stuck in the middle of riding (dead battery) with the street triple R 2013, boosted the battery and went and bought a new one, a slow charger and a voltmeter.

charged up the battery all night, connected everything, started the bike and tested for voltage around the 4k-4.5k rpm
cold bike showed between 13.7-13.8 and climbed to 14.2-14.25 - but after a few min the voltage reading started to go down and down until I got left with around 12.2-12 volts......

before I start ordering all kind of stuff and taking apart the engine cases, I would like to hear some pro advice from you guys ..

thanks in advance,

Liran

 

[triumph david]

Since the batt. was charged up it may be that the elect. system voltage regulator just dropped down to 12V+- . Take it for a ride use all electrical equipment and just watch it for a few days if you weren't having any charging problems before the batt swap its probably ok.

 

[Rikoman]

Since the batt. was charged up it may be that the elect. system voltage regulator just dropped down to 12V+- . Take it for a ride use all electrical equipment and just watch it for a few days if you weren't having any charging problems before the batt swap its probably ok.

Thank you for your reply buddy appreciate it
I’ll have a go at it !

 

[ManInTheJar]

Hi guys, how's everybody?

so, I got stuck in the middle of riding (dead battery) with the street triple R 2013, boosted the battery and went and bought a new one, a slow charger and a voltmeter.

charged up the battery all night, connected everything, started the bike and tested for voltage around the 4k-4.5k rpm
cold bike showed between 13.7-13.8 and climbed to 14.2-14.25 - but after a few min the voltage reading started to go down and down until I got left with around 12.2-12 volts......

before I start ordering all kind of stuff and taking apart the engine cases, I would like to hear some pro advice from you guys ..

thanks in advance,

Liran

I had a similar situation on my 13 STR. When I checked it the charging voltage was falling with time which indicated a faulty regulator, I also did a diode check which seemed fine but I replaced the regulator anyway using a secondhand Shindengen FH020 from a BMW SB1000R with less then 2000 miles on it. This fixed the charging voltage but I also replaced the battery as it was charging up really quickly on a battery charger which is a sign of a dodgy battery. All was well for the rest of last season but when I serviced it this year the charging voltage was non- existent, I found the stator had failed, maybe due to stress caused by the previous faulty regulator. A new regulator fixed it and all is well again.

The official service manual gives a detailed procedure for checking the charging a system but the resistance readings are so low you need a high quality multi-meter to perform the checks and even then my faulty stator passed the resistance test despite being burned to a crisp.

My advice would be to replace the battery first as a seven year old battery is sub-optimal. If this doesn't fix it then find a compatible used Shindengen regulator off a late low mileage bike. I would also remove the alternator cover, a spoonful of oil will run out, and check the coils for burning especially the ones near the connector. The stator cover needs a good grip and a bit of force to remove in order to overcome the magnetic force.

If the stator is goosed replacing it on that year involves a bit of modification to the connections if you use an aftermarket stator. PM me if you need to go down that route and need details.

 

[ManInTheJar]

Oops I should have said a new stator rather than regulator at the start of this season.