What engine is this?!?!

[Cmckean12110]

My dad recently bought a gocart and having trouble finding out what engine is on it for oil and fuel purposes. Does anyone have any idea what kind of engine it is?
Thank you!

 

[mckutzy]

Off hand I'm going to say its a Yamaha 2stroke for a racing gokart...
I reckon there should be some markings on the block...

Now this is a guess... But there is some knowledgable people here that'll say for sure, have a bit of patients... They'll chime in soon...

 

[Cmckean12110]

Thanks I will keep a eye out for more and I will look for markings

 

[65ShelbyClone]

Yamaha KT-100s are a lot more blocky in shape and the ignition is typically on the inboard side.

That looks more like a Parilla product to me.

 

[mckutzy]

Ahh ha.... I knew I was close....
2stroke for sure, so oil goes into the gas as a mix...

 

[itsid]

tough..
I mean that's certainly a distinct look.. just one I've never seen before..

the head reminds me of a Vortex.. maybe an odler Rotax *shrugs*
but a tied head and segmented cooling fins..
I haven't seen that engine before.

Anyways, if I had to make a guess.. I'd put it on the iame shelf for now
(since it's likely the biggest in 100cc karting engines )

But inspect the crank case closely .. you'll likely find some markings;
eninges like these need a homologation in order to be race legal,
And that should be stamped to the case at the very least

'sid

 

[mckutzy]

Interesting none the less...
Can we see more of this and the kart...

 

[Joe-405]

That engine looks like a comer 100cc to me.

 

[65ShelbyClone]

Apparently it's a Merlin/MRC. I could only find two photos and one single reference to it possibly being an EVS98 reed model.

http://www.kartwiki.com/index.php/MRC_Atomikart

 

[NewbCarter]

Parillas are usually rounder in shape ...

Reed induction , with what looks like a complete PVL ignition , and an Ibea L3 carb ...

Edit : definetly a Merlin Atomic engine ... dont know the specific model .