Repowering a herd of yard carts...

Hayhoss

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So I got my kids a little 5HP L-head yard kart a couple of weeks ago, now I have three karts (carts?) and can't stop thinking about my future "Cross Kart" :banana::auto:
I just want to go fast and rip some jumps... I'm so addicted to how much fun the power to weight ratio is and I want to see how far I can take it.

Thing is, I was partially paralysed and lost the use of my left hand, and my right arm is not the strongest, so I am looking to repower a few of these with something easy to start, preferably electric.

To start with, I have a OHV 5hp tecumseh that is a difficult starter but runs out good once warm. It has no choke, just a primer bulb. I was hoping to rig a choke in the short term to help. Is there a way to start with a drill? Ultimately, I am looking to put a 400+cc air cooled eventually and I was curious if I could Use a 30 series TAV, or if I need to go bigger? I have a lot of 30 series parts and I was hoping to keep the parts interchangeable.

What do you guys think about the Honda style 420cc single cylinder clones vs a B&S Vanguard 14 hp twin for ripping reliably? I have both available, the twin is huge and set up with a start and charge system, the single seems like better power/weight ratio, and simpler. Frankly, I'm scared of having to setup a starter. I know its not super hard, but I dont like controls.
 

mckutzy

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Hello and welcome...
You have to choose what you want ....big block or small block...
Small block with the tav setups you have.. or a big block that needs a larger for more powerful engine....

Then there is the Vanguard... I think it has a 1 1/4" shaft... that needs a whole new type of CVT... I think that also has an electric start already....
 

Karttekk

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Something like this will allow you to keep using your 30 Series drive parts.

 

Hayhoss

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Something like this will allow you to keep using your 30 Series drive parts.

I have a some similar engines, a predator 212cc and a 275cc B&A snowblower powerplant. I wonder how many cubes a 30nseries cvt can handle? I think the 200 class is just enough for them (5,6, & 7 years old)

For the adult big block rig, I understand that I am going to have to drop some cash into a CVT for it. My biggest question is what air cooled engine I can get the best power to weight ratio with? I would love to do a bike powerplant set-up, but I can't shift with one hand/foot. I'm open to anything, currently exploring rotax on a Polaris CVT?
 
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