FZRSupport: the FZROnline Archive

Hey
I think my alternator is screwed

So far what i have done is
Disconnected the positive terminal of the bike, and tested for leaks
(no leaks)

Measured the voltage across the battery, and it didn't raise as i revved it

Tested the white leads going in to the regulator/rectifier
i read 30-60vac across each pair when revving

How ever the Alternator is coils on the fly wheel, and is a non moving part, therefor rarely breaks

Is there any other test i can do to determine the problem?

Thanks
Richard

if we had some clue from you about year/ and market model (ie your location in your personal profile ) it would probably help.

the Wiki has a section on trouble shooting the charging system which would be of use may be..............

Oh sorry, wasn't thinking
FZR250 2kr 1988

As discussed on FZR250.com, 30-60vac on all 3 legs = a working alternator. If your battery isn't charging, then it's either the battery, the VRR, or the wiring in between. There may be a 'leak', a short that drains the battery without passing enough current to actually blow a fuse.

BoD wrote:Oh sorry, wasn't thinking
FZR250 2kr 1988

B,
Well that is a start but where ?
Bikes are not built in Japan to one spec the spec varies as to what market it gets sent to USA has diff emision specs to Europe . Lights are wired permanently on in some countries and manual in others.

As for the engine electrics they are the same basic layout ie alternator/ Volt regulator/ battery charging system.so:- take a look in our very extensive WIKI for electrical trouble shooting.

In this case they WERE built to one spec, as the FZR250s were JDM-only. All examples found elsewhere are grey imports.

Don,
cool , just wonder how a Uk owner would get on with the lights pointing the "wrong" way for the DMV

(can't delete my own bloody double posts?!)

IIRC, the Japanese share the trait of driving on the wrong side of the road with you chirpers...