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You could use 316 grade stainless steel ones, no rusting and same as the type (metal wise) as the ones in your rebuilt outboard leg! The trim tag on the O/B leg should be Magnesium in fresh water and Zinc in sea water (it is the sacrifical anode, so you dont corode your motor out) Post some...

Russ, Thanks, I can see why you love the Lawnboy brand......mate if you put a pair of tuned expansion chambers on that twin set up.....the mind boggles... Well built kart, too! Why did they stop making those engines?:cheers2:

That be great if you would Russ!:wai:

Be good to see how this turns out for you, your doing a great job on it...looks good. I am looking at one very similar on Ebay ATM, not sure if I can bits for it here though...(I haven't looked yet) Could you get any parts for it from your local mower shop if you needed too?

They are they a bit like the Aussie made Kirby Tecumseh's then RIP:Angel_anim: . Got any internal photos of the port layouts for interest? Internal bits? etc. Never seen one in the flesh, but being reed valved and mostly alloy, they would have to make great Kart engines!

Me thinks they are called a spragg? clutch.....:cheers2:

Garfield: (1) Measure across the outside edge of one bolt hole to the outside edge of your wheels centre hub hole, record the distance. (2) Then measure each of the two holes diameter you have measured across, record the diameters. (3) Now halve each diameter, (4) Add these two figures and...

Try an agricultural chain and sprocket / Accessories suppliers, usually pretty fair price, custom made to order with bore size etc.

True it does:surrender:....but equally true they are usually free if you go in and ask 6 inch rim size too.. :D Bit suprised nobody has been using them really.....

See my free tyres thread!:D Works world wide, FREE!

Yes they do......great isn't it!:D

Just go and see your local guys down the local airstrip, most 6inch rim size on the small Cessna's and Pipers. All sorts of diameters, they usually throw them away when the get down a bit, but perfect for a DIY karter or mini biker!! Perfect for paved roads or off road! They would need...

Free kart tyres 🥷 FREE TYRES we still get free tyres off light aircraft which fit on 6" rims for nil$ and they are more than happy to see them go. Check out your local small airstrip. great on off road karts....:cheers2:

:huh: What the fuss about guy's? these things have been factory developed and fitted to Yamaha 2 stroke moto cross bikes for over 20 yrs! (fitted with reed valves and all) . From my understanding the inlet tract gets a standing wave (just like the exhaust) and these things act like resonance...

MMM yeah :iagree: shame I'm only 1/2 way across the country I was tempted to drop them a line and ask about parcel post....still might.... If you ever see a Kirby two stroke let me know..:D they were also fitted to Deltek mini bikes as well, I think this Victa came off a Deltek mini bike.....a...

Errr, sorry B man you've lost me there...:huh: :iagree: and easier too, but it expands (or implodes in the brain) coming up with ways of thinking "out side of the square" Well worn Quotes: "Necessity is the mother of invention" and "Solving one problem creates at least two others":rolleyes3:

Outboard leg Anyone thought of trying the gearbox at the end of an old out board leg, off a 10-20HP? got reverse too...fully enclosed running in light gear oil as well, would have to be pretty bullet proof? Thoughts? :popcorn:

:iagree: some what, but for the new kart builder a great place to start! Weight (mass) is there and so is co-eff of friction etc., I plugged in my real world (measured) figures of my kart and it was close enough..I still think it is a very good start point for a DIY Kart newbie, working on the...

Very helpful:thumbsup:great compilation of links / threads / posts I liked the go kart guru's calculator etc....hours of fun! The only problem is the wife and kids want more action out of me:toetap05: "when are we making one dad":toetap05::toetap05::oops: