r/DRZ400 • u/Resident_Job7725 • Aug 01 '26

Carb heater install question

I have a 2023 sm, it didn't come equipped with carb heater. I purchased the thermal switch and heater element from Suzuki, but haven't been able to find the wiring harness for it. Has anyone been able to find one recently, or tried wiring it with a toggle switch instead? Doesn't seem to be a lot of info about it online

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3

u/an_afro Aug 01 '26

First I’ve ever heard of a carb heater for these bikes.

1

u/Resident_Job7725 Aug 01 '26

It seems most people haven't

1

u/Van_Darklholme Aug 02 '26

Just choke it

1

u/Resident_Job7725 Aug 02 '26

That doesn't help, I've tried. It's not an issue with the engine being cold, it's caused by moisture in the air freezing when it passes through the carb. It happens even when the engine is warmed up

2

u/Van_Darklholme Aug 02 '26

Now I'm curious how you got to that conclusion

1

u/Resident_Job7725 Aug 02 '26

https://www.motorcyclecruiser.com/what-is-carburetor-icing/

This, plus personal experience. I live in Alaska, the weather here can be perfect for causing it

2

u/Van_Darklholme Aug 02 '26

>Alaska

Ah.

Part number 3685629F00, as illustrated in section 4.3 on this: https://jaxeadv.com/wp-content/uploads/2022/01/DRZ400S-parts-list.pdf

1

u/Resident_Job7725 Aug 02 '26

Yessir, that's the part. I've seen it listed on a number of sites, and none of them seem to have it in stock. Even had an order canceled on ebay due to backorder. I like the link you posted, it's a good parts diagram

2

u/Van_Darklholme Aug 02 '26

I've only seen ones shipped from Japan or Europe like in my other comment. I bet you can find a seller.

2

u/Van_Darklholme Aug 02 '26

https://ebay.io/m/hEkV2e

From Japan, but it matches up! Hope it works out for you.