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Carburetor Kit for Yamaha DT250A

  • Snowman
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Carburetor Kit for Yamaha DT250A was created by Snowman

Has anybody tried this Kit for 1974 Yamaha DT250A
Not Mikuni but Japanese made and it does seem to include everything required.



 
03 Jun 2025 20:02 #1

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Replied by Snowman on topic Carburetor Kit for Yamaha DT250A

Not sure if the Link came up!
The Kit is from Sirus Consolidated INC
YAMAHA DT250A KEYSTER CARBURETOR REBUILD REPAIR KIT 1974
Product Code : KY-0801N
03 Jun 2025 20:05 #2

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Replied by pabdt on topic Carburetor Kit for Yamaha DT250A

Search KEYSTER. I saw comments somewhere on the site about them. Don't recall they were good! Want to say was GR8UNCL
1974 Yamaha DT125A
1974 Yamaha DT360A with SP96 Exhaust
03 Jun 2025 20:47 #3

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Replied by Gr8uncleal on topic Carburetor Kit for Yamaha DT250A

Some have had success with them, but most haven't. Definitely don't mix and match the brass parts, although gaskets might be fine.

You'd be surprised at how much new original Mikuni parts are still out there, via fleabay etc, your bike dealer (doesn't have to be a Yamaha one) and a Mikuni carb specialist.

What are you missing?
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03 Jun 2025 23:25 #4

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Replied by Snowman on topic Carburetor Kit for Yamaha DT250A

I put a Kit through my DT250A Carb of unknown make (not Mikuni), it idled ok but when I rode the bike had no power.
It could be something else but I want to rule out the carby.

After looking back through previous posts I am taking everyone's advice and cleaning up my original Mikuni brass parts and putting them back in, just need to buy Jet setter O ring and gaskets.

Thankyou all for your replies
06 Jun 2025 21:37 #5

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Replied by Gr8uncleal on topic Carburetor Kit for Yamaha DT250A

O ring is still available from Yamaha.
06 Jun 2025 22:41 #6

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