Help, reversed batter polarity and now nothing

[MattR]

When you switch ignition on can you hear the fuel pump run?


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[AEF]

Here’s the latest, with great thanks for all the interest. The 7.5 amp throttle fuse was indeed blown so I replaced it. I also put in a new, fully charged NOCO lithium battery. Here’s a video of my latest attempt. It sounds like it turned over right at the end then I lost it :/. Hopefully you can see this. Maybe the spark plugs?

IMG_4221.MOV

drive.google.com

 

[RCinNC]

You could pull the plugs; that would at least tell you that there was fuel reaching both cylinders. Before I did that, I think I'd try just starting it with wide open throttle. If that doesn't work, I'd try using the hard start procedure. I've never had to use the procedure, but I downloaded it and keep it on my computer/phone/service manual just in case.

 

[bimota]

that,ll go now may be flooded try this

The WOT start is a thing with S10s. Google "Super Tenere will not start" or "WOT Super Tenere " and you'll see a number of threads describing the symptoms you have. Fresh battery/jump and WOT seem to work. Probably introduces a very lean mixture.

Example: https://r.tapatalk.com/shareLink/topic?url=https://www.yamahasupertenere.com/index.php?threads/wot-start.11913/&share_tid=11913&share_fid=33658&share_type=t&link_source=app

 

[AEF]

Update...running! The hard start did it. Tried WOT, didn't quite get there. Then pulled the EFI fuse, then put it back in, and worked like a charm. I decided to keep the new battery in which I had purchased when I thought that was the problem, even though I'm not absolutely sure it needed it, but I suppose when taking over a new bike (private sale), it can't hurt to throw in a new battery for piece of mind. I notice it actually starts much faster and smoothly now with the NOCO lithium than with the YUASA YTZ12S. Thanks again to RCinNC and bimota and others for the interest and great advice. You saved this newbie hours of time and probably a whole lot of dough I didn't need to spend (not to mention the $19 I have to pay for parking each time I have to drive the cage to work

 

[bimota]

no worries fella, glad to help glad your ok now

rob

 

[RCinNC]

I'm glad it worked out!

 

[Matt51F1]

Just as a side-bar to this topic but still related… I like the idea of a good lithium battery but there’s the issues that we’re seeing with battery cars catching fire and not being able to be put out.

Has anyone seen or heard of this happening with the bike batteries?

 

[gunslinger_006]

Just as a side-bar to this topic but still related… I like the idea of a good lithium battery but there’s the issues that we’re seeing with battery cars catching fire and not being able to be put out.

Has anyone seen or heard of this happening with the bike batteries?

Not that i have heard of, but you are right that LiIon will burn in a way that is very hard to extinguish.


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[RCinNC]

Just as a side-bar to this topic but still related… I like the idea of a good lithium battery but there’s the issues that we’re seeing with battery cars catching fire and not being able to be put out.

Has anyone seen or heard of this happening with the bike batteries?

Maybe not specifically bikes, but there have been several big fires up in NYC at underground scooter factories caused by burning lithium batteries. I imagine the quality control on them might be a tad lower than something sold by NOCO, so they might be a higher risk for fires.

 

[Matt51F1]

Maybe not specifically bikes, but there have been several big fires up in NYC at underground scooter factories caused by burning lithium batteries. I imagine the quality control on them might be a tad lower than something sold by NOCO, so they might be a higher risk for fires.

I didn’t think of battery quality, so there’s definitely something in that.

 

[RCinNC]

I think lithium batteries are a lot more vulnerable to shoddy construction than a lead acid or AGM battery would be.

 

[RCinNC]

I think this is a problem that's only going to get more prevalent over time, as we import more and more cheaply made battery powered devices like scooters. Most low quality imported devices, when they fail, just stop working; you toss it out and swear you'll never buy from aliexpress again. Now you buy a cheaply made imported electric scooter and some morning at 3AM it spontaneously bursts into flame while it's sitting in your garage. That's pretty scary to me. I've seen some videos on Youtube of scooters just sitting somewhere parked, and they start smoking, and the next thing it looks like a rocket engine going off.

 

[WJBertrand]

The lithium iron phosphate (LiFePO4) batteries used for motorcycle starting are immune to run away fires. The fires you hear about are other types of lithium ion chemistry. Most electric cars use a different chemistry than LiFePO4, because they offer higher energy density.

 

[scott123007]

The lithium iron phosphate (LiFePO4) batteries used for motorcycle starting are immune to run away fires. The fires you hear about are other types of lithium ion chemistry. Most electric cars use a different chemistry than LiFePO4, because they offer higher energy density.

Thanks for setting the record straight, Jeff. People seem to confuse "starter" batteries with batteries that actually do the "propelling". (iron vs ion)

 

[RCinNC]

You're right, Scott; definitely out of my element when it comes to battery power. I knew that the batteries that provide starting power were different than others since they're designed to provide a lot of power all at once, but I get pretty sketchy from there. Thanks to WJ for the info.