Scrap to Saved? McCulloch 91 Kart Engine

Have Spark? Have compression? Will it run? Let's find out!
#mcculloch #kart #revival
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My Instangram
/ mister_mac_gray

[@bigboresledder]

Nice save!

[@mrmeanst]

Looks to be a 1st gen Mc91, 1966 or 1967. It has the 1st design low intake and smooth bore carb on it.

[@mistermacgray]

That's because it is. It was the only one of the 90 series to have a painted block.

[@PowerBeeEngine]

Great job getting it going.

[@overbuiltautomotive1299]

nice find

[@jerrymander1492]

You don’t just find these in a junkyard? Ebay most likely

[@mistermacgray]

Facebook in a group is where i got it but yes they can be had in junkyards

[@jameswarren1871]

What's the name of part number for those carb kits?

[@mistermacgray]

I have no clue, I just know they are pressure pulse carbs, similar kit to the Walbro BDC series

[@jeffreyrubish347]

That would make an interesting lawnmower 🙂

[@staatsfiend]

J8/C has a 3/8" reach, that square head generally requires a 7/16" reach plug like a B7HS.
straight bore carburetor with no venturi is the least desirable carb to use.

[@mistermacgray]

The engine is what it is. May sit on a shelf for awhile till I figure out what to do with her. May just toss into a saw frame and send it hard since I have saw frames laying around.

[@ericjohnson9080]

How did these work in Karts? Just direct drive?

[@mistermacgray]

Depends on if a person had it direct drive or put a clutch drive on it.

[@tomkelley1100]

Needle bearings on pto and roller bearing on flywheel. 92/93/mc had roller bearing on both pto and flywheel

[@mistermacgray]

Yup, why the 92 and up had roller is beyond me. I know a guy could get the block modifed to have roller but this one I think will be fine.

[@DaveyBlue32]

Best way to find your old socket is to go and buy you a new one! 😂😂👍👍

[@mistermacgray]

Thats exactly what I had to do.

[@DaveyBlue32]

Yeah Boy!!! Great Spark!!! Woo Hoo!!! 😂👍.

[@KainKustomGarage]

Yore thumbnails are lookin good kid! 👌

[@mistermacgray]

Super huge thanks to Indiana Doug for making it (check out his channel, I'm trying to get it too 500 subs but 1k by the end of the year!!!)

[@tomkelley1100]

And now you know why we use a belt or stick starter

[@mistermacgray]

I have a 101B and stroked 91a that will bite harder than this one. This girl is cake to start.

[@TheLouisamite]

I'd would be finding that socket ,my sockets also have snap on on them iv been having them for 23years now,

[@Thetreefella]

Mr Mac Gray 🖤💛🖤💛🖤

[@tomkelley1100]

1 turn low 1.5 turn high