FZR400 - won't stay running without booster pack

FZR400 Forum

Moderators: Site Director, FZR Forum Moderators

Site Newbie
Posts: 20
Joined: Sat Aug 30, 2014 6:50 am
Location: Ontario, Canada

FZR400 - won't stay running without booster pack

Postby Straycat » Mon Jan 21, 2019 8:35 am

Hi Guys, I know the battery on my FZR400 is weak (and im getting a new one). I fired it up today using a booster pack on the battery. It started ok, and ran ok until I shut the booster pack off and then it dies immediately.


Why does low voltage cause it to stall immediately ?

Just the battery ?, Reg/Rec ? (which I can only properly test once a new battery is in otherwise im just getting a reading from the booster pack)

User avatar
100+ Posts
100+ Posts
Posts: 139
Joined: Sat Apr 04, 2015 6:45 pm
Location: Ontario, Canada

Re: FZR400 - won't stay running without booster pack

Postby snydes » Mon Jan 21, 2019 8:51 am

Check voltage coming from stator on the battery. Should be around 14V. If not, check actually voltage directly from stator measuring across each pole (AC system). If ok, the you're regulator or rectifier may be bad. If it's the original one I'd just replace it. People commonly go to a newer R6 full aluminum style.
But also, get the new battery it may not even be able to take a charge anymore


Return to “FZR400”

Who is online

Users browsing this forum: No registered users and 1 guest