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General Category => General Discussion => Topic started by: Trogladyte on December 05, 2021, 02:14:47 PM

Title: Griso battery
Post by: Trogladyte on December 05, 2021, 02:14:47 PM
The battery in my 8v Griso is a YTX16- BS. The only one I can find locally is is a Yuasa YTX16. It's AGM maintenance free, 14.7 Ah, 230A. Will that be OK?
Title: Re: Griso battery
Post by: Dave Swanson on December 05, 2021, 04:25:14 PM
Yes, that will work.  I replaced mine with a MotoBatt.  It has a bit more beef.

https://www.batterymart.com/p-mbtx16u-motobatt-agm-battery.html

Title: Re: Griso battery
Post by: Kent in Upstate NY on December 05, 2021, 06:19:03 PM
No, it will not be good. You need a YTX 20 CH-BS or equivalent. The battery also needs to be activated properly.
Title: Re: Griso battery
Post by: pebra on December 05, 2021, 06:22:24 PM
What Kent said.

There's also expert advice on the Griso Ghetto!


Title: Re: Griso battery
Post by: Muzz on December 05, 2021, 09:59:55 PM
What Kent and Pebra said.
Title: Re: Griso battery
Post by: Trogladyte on December 06, 2021, 02:44:42 AM
Ok. Now I'm confused. The bike has got a YTX16 BS in it, which has been ok for 4 years. An online registration based tool recommends this battery. I've found a YTX16 ( not BS - does that matter?)

Are you saying this battery is unsuitable - that it will be a problem? Or are you saying that there are better batteries?
Title: Re: Griso battery
Post by: pebra on December 06, 2021, 03:58:21 AM
Admittedly our winters are colder up here, but as the riding season is shorter maybe our conditions are comparable to London?
London England, right? And you're a Spurs supporter?  :grin:

I installed a YTX20CH battery in 2014 and could probably have kept it a bit longer, but changed to a BTX20CH recently.
Believe that's in line with specifications.
Title: Re: Griso battery
Post by: RinkRat II on December 06, 2021, 08:29:52 AM

      There are several differences between the numbers reccomended. I would suggest you go to Yuasa website and download their battery Application guide PDF.
 It will explain the differences in amps, connector locations and physical dimensions.  My $.02

          ttps://www.yuasabatteries.com (http://ttps://www.yuasabatteries.com)

      Paul B  :boozing:
Title: Re: Griso battery
Post by: Dilliw on December 06, 2021, 04:12:28 PM
Ok. Now I'm confused. The bike has got a YTX16 BS in it, which has been ok for 4 years. An online registration based tool recommends this battery. I've found a YTX16 ( not BS - does that matter?)

Are you saying this battery is unsuitable - that it will be a problem? Or are you saying that there are better batteries?

I had the same confusion! As I recall the BS stands for, "it comes with the acid bottles and you have to pour them in."   

The YTX16 is spec'd for the Stelvio, so the difference could be the Griso's funky mounting position.  I remember going through this and then just going with the Motoblat.  It was a lot cheaper at least here in the States.
Title: Re: Griso battery
Post by: Kiwi_Roy on December 06, 2021, 11:12:13 PM
I bought a Griso with a dud battery (had been sitting for years) so I asked on the Griso Gheto for recommendation.
Pete Roper got back and recommended a YTX 20-CH BS and he said to be sure to leave it sit overnight after adding the acid otherwise it may spit it out.
What Pete says is good enough for me.
Title: Re: Griso battery
Post by: Muzz on December 07, 2021, 04:58:47 AM
The 20 has more plates than the 16.  Larger capacity and a better CCA.

Overall, I suspect less strain on the battery.
Title: Re: Griso battery
Post by: Mackers on December 08, 2021, 04:05:30 PM
I replaced the 16 in my Breva 1100 with a 20. The engine jumps out of its skin when I press the starter. The 20 is slightly taller than the 16 so the battery cover doesn't fit.
Title: Re: Griso battery
Post by: Trogladyte on December 09, 2021, 04:39:51 AM
OK. I'm going to fit this AGM YTX16 as I've got it in my hot little hands, and it seems to fit OK, and it seems to be pretty similar to what was in there. I could get a 20, but it would take some time, and involve returning the one I've got. And all that will take longer than I've got - it needs to be running for its annual safety check.

What I'm taking from this is that the 20 a/h is a better battery, but the 16 will do. Is that right?

What I'm puzzling about most is the "BS". I cant find any reference online to a YTX 16 - only a YTX 16 - BS. The one in it is a BS, but the new one I have just says YTX 16. It's a maintenance free AGM battery - there is no acid or anything, and it's all ready to rumble.
Title: Re: Griso battery
Post by: tris on December 09, 2021, 04:49:34 AM
What I'm puzzling about most is the "BS". I cant find any reference online to a YTX 16 - only a YTX 16 - BS. The one in it is a BS, but the new one I have just says YTX 16. It's a maintenance free AGM battery - there is no acid or anything, and it's all ready to rumble.

The law changed over here recently so that you can't have bottles of acid shipped to stop you pouring it over someone

https://www.gov.uk/government/news/government-introduces-tough-new-measure-to-prevent-acid-attacks
Title: Re: Griso battery
Post by: Kiwi_Roy on December 09, 2021, 05:42:56 AM
OK. I'm going to fit this AGM YTX16 as I've got it in my hot little hands, and it seems to fit OK, and it seems to be pretty similar to what was in there. I could get a 20, but it would take some time, and involve returning the one I've got. And all that will take longer than I've got - it needs to be running for its annual safety check.

What I'm taking from this is that the 20 a/h is a better battery, but the 16 will do. Is that right?

What I'm puzzling about most is the "BS". I cant find any reference online to a YTX 16 - only a YTX 16 - BS. The one in it is a BS, but the new one I have just says YTX 16. It's a maintenance free AGM battery - there is no acid or anything, and it's all ready to rumble.
I'm sure the 16 will start ok while the weather is warm, there's no reason not to use what you have now, you can always upgrade to a 20 next time.
The Yuasa is a fine battery IMHO
Is the bike inside or left out to the elements, do you use a battery tender, daily rider of just a weekend warrior? I gather that garage space is at a premium in your part of the world.
The 8 Valve Grisos suffer from Startus Interruptus (weak start relay supply) but that's an issue not related to battery size.
The starter solenoid is designed to draw > 50 Amps but its throttled through the ignition switch to about 30 on a good day.
Those bikes benefit from cleaning the terminals and applying Vaseline or other form of grease, also the main battery ground behind the starter motor needs to be cleaned and greased, its a common problem on the Griso.
It might be interesting to measure the Voltage across the battery terminals while the bike is cranking over, I think there is a low limit where the ECU will stop trying to crank, I have a Voltmeter on several of my bikes they seem to crank fine at 10 Volts.
Title: Re: Griso battery
Post by: Trogladyte on December 09, 2021, 07:44:26 AM
Thanks all. Really helpful.

The bike lives in a garage, but it is not heated. In the UK that means periodic winter frost. I do ride regularly - bikes are my means of transport. But the Griso is not my only bike. It gets used for pillion and long distance, so much less in winter. Day to day hooliganism is dealt with by a KTM Superduke 1290R.
Title: Re: Griso battery
Post by: berniebee on December 09, 2021, 02:23:52 PM
The law changed over here recently so that you can't have bottles of acid shipped to stop you pouring it over someone

https://www.gov.uk/government/news/government-introduces-tough-new-measure-to-prevent-acid-attacks

BS in Yuasa speak stands for "Bottle Supplied" , ie, a container of acid is shipped with the battery. AGM batteries are shipped filled and sealed, thus they won't have an BS suffix on the battery number.