Anyone know what engine this is?

[KD 428]

Hey everyone,
I'm building a go kart and my freind pulled this engine out of his attic,,, if anyone knows what type of engine this is please let me know

btw it says yamaha, and looks like its aircooled(maybe a old yamaha 250 motor?)

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[KD 428]

another

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[MadMudder]

wow, that thing looks ancient.. Does it even run?

[KD 428]

I wasn't able to start it up yet due to no gas tank,,,, but it does have good compression.

[KD 428]

I found this, and it looks like an old go kart engine

http://www.kartforce.com.au/engines.htm

[mrbones]

That's actually a weird looking engine because its so square looking. What are you going to do with it?

[cycole]

looks like an old yam kt100 go cart engine

[KD 428]

thanks for the replies, I'm going to hook it up to my go kart(its just sitting there in the pics)

[SWAMP_DONKEY]

Its a HEMI!!

[lugnuts]

looks like an old yam kt100 go cart engine

I think your correct its a kt100 engine they were used in alot of racing carts and still are I have a couple of co-workers that ran that engine and I thinking they were alky motors or maybe they just ran that class??

[DCR_Marcus14]

probably a 100, go to the yamaha site they still sell them; looks the same anyways

http://www.yamaha-motor.com/sport/products/modelhome/464/0/home.aspx