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Ct3 battery

  • Bartman512
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Ct3 battery was created by Bartman512

Finally got this box of barn find CT3 together and fired up now and I need to find a battery that will fit in this tiny origional battery box. Any rec's? Real curious to see if the headlight works as the old harness is pretty crusty, but it does have the old left handlebar switch which are hard to find it seems. 
24 Dec 2021 07:02 #1

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  • Gr8uncleal
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Replied by Gr8uncleal on topic Ct3 battery

Here's a link to what some of us in the UK have used.

Parts list will give details of original wet battery if you want to go that way and these are still available.

CT1 Compatible Sealed Battery? - Vintage Enduro Discussions (yamaha-enduros.com)
24 Dec 2021 07:35 #2

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Replied by Pete-RT1 on topic Ct3 battery

Different battery on the CT3, the CT1 battery won't fit.
You need this one  www.yuasa.co.uk/6n4a-4d.html
Yamaha CT1 007
Yamaha CT1-B The Greenie
Yamaha CT1-B The Doppelgänger
Yamaha CT1-C
Yamaha AT1-C
2020 Honda CB500X
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24 Dec 2021 15:05 #3

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  • Quartermaster35
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Replied by Quartermaster35 on topic Ct3 battery

I put one of these in my CT3.....obviously not original, but its a sealed unit and provides better performance than the original style OEM batteries. 

 
1973 Yamaha CT3 175

Prior Bikes:
1973 Suzuki TS90
1977 Yamaha IT175
1978 Suzuki 390SP
1980 Yamaha 175 Tri-Moto
1969 Yamaha DT1 250
1981 Yamaha XS650 Special
1982 Suzuki GS550ES
1982 Honda 250R
1984 Honda Nighthawk "S"
2005 Kawasaki KLR650
24 Dec 2021 18:02 #4

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Replied by gvthnks on topic Ct3 battery

I use a 12v version in my Honda XR250.  Never had an issue with them taking or holding a charge and they're about 15 bucks when I need to replace them. 
28 Dec 2021 13:18 #5

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Replied by adguy2112 on topic Ct3 battery

QM how did you modify the battery box to accommodate the wider battery? I was thinking the tabs on the rear fender side of the box would need to be bent out then some sort of extension added. Definitely want to ditch the acid type. 
Last edit: 28 Dec 2021 21:11 by adguy2112.
28 Dec 2021 17:28 #6

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  • Quartermaster35
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Replied by Quartermaster35 on topic Ct3 battery

That is exactly what I did....... bent the rear tab back, which allows it to sit down the in the box ...... its sits in the box on an angle but it doesn't move around.

  

 
1973 Yamaha CT3 175

Prior Bikes:
1973 Suzuki TS90
1977 Yamaha IT175
1978 Suzuki 390SP
1980 Yamaha 175 Tri-Moto
1969 Yamaha DT1 250
1981 Yamaha XS650 Special
1982 Suzuki GS550ES
1982 Honda 250R
1984 Honda Nighthawk "S"
2005 Kawasaki KLR650
29 Dec 2021 18:09 #7

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Replied by adguy2112 on topic Ct3 battery

Perfect. Just ordered one. Thank you. 
30 Dec 2021 05:09 #8

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Replied by MarkT on topic Ct3 battery

Remember to make sure terminals can't short out on seat pan. 
1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
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30 Dec 2021 05:43 #9

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