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The TTR250 FAQ web pages -> TTR250 -> Repairs and maintenance -> Kart 250cc engine the same as the TTR engine?
Post Info TOPIC: Kart 250cc engine the same as the TTR engine?
rbraz1980


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Kart 250cc engine the same as the TTR engine?
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Hi,

The TTR was never a bike made in large numbers, therefore the availability of parts is not great.

Over the last years i have been always looking for some other yamaha machine that could share the same engine, and therefore possibly extend the sources for parts.

It seems like i found it! Found a yamaha 250cc kart engine that is very similar to our loved 250cc thumper.

All the gearbox/clutch part is different, but apart from that, internally should be the same...

Your thoughts?

Any of you found other machines with the TTR 250 engine?

Pictures here:

https://photos.app.goo.gl/1c83deaMQjRNEfTw5

Thanks!

 



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rbraz1980


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Its the Yamaha FK 250 engine. Made for karts, based on the Yamaha TTR 250 engine.



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TTRfan


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https://www.agskartparts.com.au/image/4492/YAMAHAFK250

It runs a Mikuni BN34-28-14 carb which I think is in the jet ski family of carbs.



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ttboof


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looks like it may even run the same sprag , looks like  the carb attaches to the head the same , but it looks like its a straight fitting not the bike rubber at an angle 



-- Edited by ttboof on Tuesday 28th of January 2020 01:36:48 AM

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rbraz1980


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Yep. Only the top part of the engine is similar. The bottom is totally different

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