Cold Starts in Cold Weather

maurice

Supercharged
Joined
May 2, 2020
Messages
443
Location
Tucson,AZ
Ride
2020 R3 GT
Just found that positive terminal is on left side of batter with stock specs. Hl is on right. Need bat that fits. ??
 

warp9.9

Pocałuj mnie w dupę
Joined
Jun 10, 2007
Messages
11,192
Location
Forest City Illinois
Ride
07 Rocket
20200212_125800.jpg
 

maurice

Supercharged
Joined
May 2, 2020
Messages
443
Location
Tucson,AZ
Ride
2020 R3 GT
Anyone with 2020 know what higher cca battery fits? Cannot find one other than stock.
 

Gregger

Top Fuel
Joined
Nov 2, 2013
Messages
1,548
Location
Timmins, Ontario
Ride
2012 Rocket Roadster
When a lead Acid battery is cold and you have no way to warm it up, you will get the most power out of it on initial start up. It goes downhill from there. Heating the battery up with an external source such as a battery blanket will free up a lot more power before the voltage drops to unacceptable levels.

With a cold Lithium battery initial start up does not yield the most power delivered. The more you crank or draw current, the better the power delivery will be.... to a point. So if the vehicles sounds like the battery might be low, try cranking again and things should improve.
 

Gregger

Top Fuel
Joined
Nov 2, 2013
Messages
1,548
Location
Timmins, Ontario
Ride
2012 Rocket Roadster
Just found that positive terminal is on left side of batter with stock specs. Hl is on right. Need bat that fits. ??
Polarity location is determined by the letters H or HL.

Yuasa has 2 heavy duty batteries for the Rocket Roadster which uses the HL version. If you need the reversed terminals, get a Yuasa battery GYZ20H, good for 320 CCA and reversed terminals or the YTX20H, good for 310 CCA with reversed terminals. The original only puts out 270CCA. (PS, I'm not sure if these will fit the new Rocket 3)

https://www.yuasabatteries.com/wp-content/uploads/2020/01/2020_Application_Guide_File.pdf Look at page 10 of this chart to find which battery will fit. Measure your battery box length, width and depth to see what you can fit in there. Lots of bigger batteries available.
 

Boog

Traveling Story Teller
Joined
Oct 17, 2013
Messages
7,093
Location
Dumfries, Virginia
Ride
2014 R3T, TORs, RAMAIR
Good info, thanks. Question. Stock bat specs have "ch" in the above rather than "hl". Is that higher amps? If so, why not get bat. With 330 cc's?
Just looked up stock cca. 270cca! A car motor?! Cheap b$$tards.
Also, are you sure the above fits the 2020 rocket? Put specs in amazon, showed a yuasa, but box said does not fit your 2020 rocket.
I do not know if it fits your 2020. But the website should identify the correct AGM with higher CCA.
 

maurice

Supercharged
Joined
May 2, 2020
Messages
443
Location
Tucson,AZ
Ride
2020 R3 GT
Polarity location is determined by the letters H or HL.

Yuasa has 2 heavy duty batteries for the Rocket Roadster which uses the HL version. If you need the reversed terminals, get a Yuasa battery GYZ20H, good for 320 CCA and reversed terminals or the YTX20H, good for 310 CCA with reversed terminals. The original only puts out 270CCA. (PS, I'm not sure if these will fit the new Rocket 3)

https://www.yuasabatteries.com/wp-content/uploads/2020/01/2020_Application_Guide_File.pdf Look at page 10 of this chart to find which battery will fit. Measure your battery box length, width and depth to see what you can fit in there. Lots of bigger batteries available.
Good info! My problem appears that the length cannot be longer than 6 inches. Maybe could get a piece of paper in there!! So the above bats won't fit. Height I could increase if needed. **** it is tight in there. Longer bat cables and the regular polarity the only way you think?
 

sonnie

.020 Over
Joined
Jul 20, 2020
Messages
37
Location
Blue Ridge Georgia
Ride
rocket 3 GT,
Wondering if it is normal when bike outside, not garaged, temps going down to 30's or low 40's, when I hit starter just turns over( for about 3 seconds, )but no start. When I stop hitting starter button, then hit again, starts right up. Did this on both cold mornings.
Is this ok or is something not right? Bike is almost 6 months old. Thanks!
Next time you start it in cold weather, open the throttle about 1/4 turn during start up.. That will bypass the computers rich start system and allow
more raw fuel on startup.. Normally the closed throttle setting is enough on a fairly warm day (50 degrees or so) but a partially open throttle will give u
almost twice the fuel on start up. My T-120 with fuel injection does the same thing, especially if it sits a week or so.
 
  • Like
Reactions: wjb

Journeyman28778

"And this one is just right" ~ Goldilocks
Joined
Aug 13, 2017
Messages
721
Location
Swannanoa, NC 28778 USA
Ride
'11 Rocket III Roadster
I have to jump mine in the cold (20s - 30s)- the bike is kept now in a portable tent shed. I have one of those little jump packs that does the trick. With winter weather here I've decided to mount this $10.99 Amazon Amazon.com: LINGYU 10AWG Battery Charging Cable,SAE to O Ring Terminal Connectors Harness, 2-Pin Quick Disconnect SAE Plug Cable so I can hook up the pack without removing the seat. The similar looking (lighter weight) harness I have for the battery tender, which I highly recommend, has a 7.5 fuse that blows if you use it to jump the battery.
Screen Shot 2020-11-21 at 10.32.15 AM.png
Screen Shot 2020-11-21 at 10.28.57 AM.png
 
Last edited:

Similar threads

Top
AdBlock Detected

We get it, advertisements are annoying!

Ad-blocking software does a great job at blocking ads, but it also blocks some useful and important features of R3Owners. For the best possible site experience please take a moment to disable your AdBlocker for R3Owners.Net.

I've Disabled AdBlock