Mechanical and Technical For mechanical and technical discussion


 
Old February 24th @ 10:03 am   #1
buellrider's Avatar
 
From: In that old blue chair...

Motorcycle: FXB12RR
A friend of mine has a '97 Blackbird. His battery will not hold a charge. He has to put it on the charger about every 4th day. New battery was installed and he rides it daily.

Anyone know of issues with these bikes???

 
 
Old February 24th @ 10:13 am   #2
Road Block's Avatar
 
From: Las Vegas

Motorcycle: 99 Black Bird CBR1100XX
Don't know, could it be the Rectifier?
 
 
Old February 24th @ 10:20 am   #3
SynCitizen's Avatar
 
From: Syn City

Motorcycle: "R1"
Quote:
Originally Posted by Road Block View Post
Don't know, could it be the Rectifier?
+1... first thing to check


I had a similar problem with my R1. I first checked all the charging system and everything was within specs, then installed new battery, same issue, turns out it had a bad cell (sam of sams cycle exchanged batteries with no hassle). Put in new battery and picked up a trickle charger. With the connectors mounted to the battery it's now easy to hook it up everyday and the battery stays at peak and no more issues.
 
 
Old February 24th @ 11:32 am   #4
2upFZ1's Avatar
 
From: NLV - Lone Mt & Clayton

Motorcycle: 2002 Yamaha FZ1
Best bet it to get a charger that has a desulfating circuit in it. Most batteries that lose their ability to hold a charge is due to sulfation on the plates. The circuit sends a high frequency pulsating charge to disolve the sulfates back into the battery acid/water.

Yuasa & Battery Tender have several models with that built in, but not all of them. I have a charger from Shumacher that has it. Best thing I have bought. My Acura sits most of the year and after charging it overnight (the desulfating is automatic) the battery is good to go for another year.


But for your friends XX to kill a new battery, it's got to be something in the charging circuit. Rectifier or Stator. Here is the page from the FZ1 repair manual about checking the stator. I can't say that it would be the same for the Blackbird, but it'll give you an idea.
Attached Thumbnails
Battery issues...-stator.jpg  
 
 
Old February 24th @ 03:14 pm   #5
buellrider's Avatar
 
From: In that old blue chair...

Motorcycle: FXB12RR
Thanks guys I'll pass this on to him. He's lurkin' and "skeered" to post up. I don't know why.

Come on Chris...post away.
 
 
Old February 24th @ 03:28 pm   #6
Mr Pheer's Avatar
 
From: Tatooine

Motorcycle: a jet
Honda's have alot of rectifier and other electrical problems.

On a VFR, its not a question of if the rectifier will go out, but when it will go out. Or when will the wiring harness melt.

If you get a VTX that doesnt have grounding issues, you got lucky. Easily fixed, but dealers always say "never heard of this problem before" - they say the same shit about the VFR electrical problems.

Dont even get me started on cam chain tensioners...
 
 
Old February 24th @ 09:20 pm   #7
 
From: Vegas

Motorcycle: Honda CBR 600 F4
I recently had charging issues too. Get ahold of a volt meter. set it to read dc volts. turn the bike on and touch the leads to the battery terminal. rev the motor. it should read somewhere between 14 and 15 volts. Then check the stator coil resistance.
 
 

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