Roadside jump start

[dangerdog]

man i just learned getting ready for work this morning that there is no getting an AE in gear when its dead. This seems like an unexpected drawback. Is there something i just overlooked in my morning stupor? If the batteries dead, the bikes dead.

Also cosign with the thread starter. I had never attempted to access the battery, i scratched my head wondering wtf the battery was after i took off the seat.

 

[mdisher]

It's only two cap screws and a plastic rivet on the upper right hand cover to get to the battery for a jumpstart.

You do carry hex wrenches with you don't you?

 

[buf2phx]

Not sure if yer askin' this...but FJRs do bumpstart when battery is low. Personal experience.

It's good to know it's a least possible.

I've bumped my 03 ZZR1200, but that's not fuel injected.

It's gonna come down to how low the battery is. Somwhere around 9 volts is about what is required to operate the ECU. So,low battery-you've got a shot,stone dead battery-you're screwed.

Mike

 

[lazbm]

Since riders love farkling, this issue lends an opportunity for a new one.

One could install a remote battery terminal under the seat like some cars do under their hoods when the batteries are in the trunk or under the seat and not easily accessible.

Come to think of it, the fuse blocks that many install under the seat could act as that remote terminal depending on how it is wired (I haven't used one, so I could be off here).

 

[user 213]

Remote terminals for battery jumping need to be very heavy gauge wire, like battery cable wire, (hint, hint). As FredW said, you're only going to melt stuff if you try to do a traditional jump start through a socket or aux. fuse block. That much power through small gauge wires makes a lot of heat. You can back charge the battery through small gauge wire though. And for your bike's sake, use an inline fuse!!!

Switched power means it's on with the key. Un-switched power means it's on all the time. It should be obvious that you need to have an un-switched power port or circuit to back charge the bike through if you want to do this. And no, the cig port in the glove box won't work for this, it's switched, and very lightly fused.

There are remote terminals designed for direct connection to the battery. RV places usually carry them. Seems like I saw some on a Alaska bound bike once, (not a FJR).

I've bump started the FJR. I've also jump started it from the cage. (12v is 12v, don't believe otherwise. The bike will only draw what it needs.) I think there is a minimum voltage required to fire the injectors, but don't know what that is. If it's stone dead, you probably need to trickle charge the battery some before attempting a bump start.

 

[lazbm]

Remote terminals for battery jumping need to be very heavy gauge wire, like battery cable wire, (hint, hint). As FredW said, you're only going to melt stuff if you try to do a traditional jump start through a socket or aux. fuse block. That much power through small gauge wires makes a lot of heat. You can back charge the battery through small gauge wire though.

The disclaimer was "... depending on how it is wired (I haven't used one, so I could be off here)." :glare:

 

[user 213]

The disclaimer was "... depending on how it is wired (I haven't used one, so I could be off here)." :glare:

Yep, and I have, and you are. Letting the smoke out can be expensive.