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You're wrong, each one of those tiny ferrous torroids is a bit, that can hold a binary state (high or low or on or off or left or right) representing a 1 or a 0, not a byte. In today's terminology (and back to the late 1970's), it takes 8 bits to make a byte. However, back then, depending on what era and computer it was from, they may have not used 8 bit "byte" words yet, but rather... 5, 6, or 7 bit length words... or any of those lengths plus one parity bit for error checking. The word "byte" came out of the home computer 8bit era of the late 70's and early 80's.... before then, they called a group of bits that represented one atomic value or character "words". Don't quote me on it though. Going back further they may have even called them something else. The error checking parity bit would reflect if you had an even or odd number of bits in the word set to 1. If they didn't match, you knew you had a bad memory location, and could report it in hardware or software, or mark it out as bad in software. Usually on start up a memory testing routine would run, writing various test values to memory, and comparing what was written and read back, to what was written, and also if the parity bit was set right. You'll see this on most older PC's... when they boot, the computer will perform a quick memory count and test on the initial screen. It's no longer really done any more in modern computers and BIOS's, except when installing new memory and you have to "train it" (something new in DDR5 memory).

It has been awhile since I was at DFW, but never seen this store... Now what I wonder, if this bike is part of a collection does the store rotate the bikes to different locations... that would be interesting if they did. Nice find!!

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Maybe there was a small inclusion (sometimes microscopic sized debris) in the metal and it just took a long time to develop a stress riser and break.

That crappy parts has not been improved, I have received the same about two years ago. Issue was exactly the same. So many parts are the same poor quality and cannot be used, I don't understand how this waste can go on.

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Yes I’ve seen it there traveling through DFW a couple of years ago.

Haha! I feel like a dumb-ass, that type of memory is called bubble memory.. it allows you to charge up each "bit" and even if the power is removed, the bit settings are still saved. This was extremely useful when sharing memory between two cpu's setup in a failover configuration. VAX computer systems was the last manufacture that I ever seen this used on (I think Tandem Non-Stop Systems used this also). Basically these memory units were the KERNEL memory, and if a cpu broke, the fail over cpu would pick up on the exact command that was being executed at time of failure (plus all the register values). Damn I am old, I have not thought about using bubble memory since the mid 90's. GOOD pick of items to use in the contest.

coil looks like a chunk o' wood Maaaan! Jeez I got three armatures on my coffee able! RIIGGGGED! LOL ( Im identifying as a half blind old fart from now on) maybe half blind old fart + glasses = Poindexter next time LOL

Bit, not byte.

Reminds me of when I was in college many years ago they had a CDC computer that had banks of these memory modules.

Wow!

Bloody brilliant observation. I'm English, 50 years old and love XLs. I know DFW a little bit and met a lovely American lady there once. But at D24. It's a long story. I follow your channel because I would like an old XL. I was gonna buy a 75 off a guy in Leeds , Yorkshire but got concerned over what seemed to be a hairline crack on the case? Not sure though because I'm unknown to bikes older than my generation

so whats the skinny on this sporty is there a price or?

As the owner of an original paint 59 XLH I can say they are lovely bikes. A pleasure to ride. Owning one I can say they fully explain why they as a the beginning of iron heads lead the way for them to become epitome of classic Harleys. Indeed anything pre 70 with all the original pieces intact is a rarity.

Gorgeous 😂 just like their skin care products 🤣

number 1 is the base from a magneto that you cut the shaft off of ,(possible bonus info is the S mark is for south magnet) number two as I said is a coil from said magneto (looks like you ground away the plastic potting out of curiosity to see the windings, m and number three is the one that different and I have the thought , it was some kind of tool to measure magnetism, its the different one, and not a bike part.

Number three is an ECM computer cutaway

My guess is thing 1 is points plate on magneto, thing 2 is coil from magneto, and thing 3 is what is different... But not sure what it is... looks a mesh, maybe like an air filter...

i never saw this video, OMG I would have paid the shipping , and bought you a gift, wow how did this happed

Thing 1

maybe one is part of a horn and the other two from an amp or speaker cabinet.

well I was goona try, the second "thing looks like a ignition coil with the plastic ground down to random depths , the third looks like an electrical regulator or rheostat of some kind. but Im lost on the first one, I just know it the one thats different because its not an electrical component persay...

Oh boy this is a tuff one for today's "men"... my head is smoking.. thinking thinking......thhhhiiiiin.n.nkinnnng,

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Muy cool. Nailed it!

"I'm sure there are others like Gary out there" Good luck with that. I'm sure the owner was being kind but. I could give you a couple of names that are out there that talk like Gary...but they aren't Gary. The only way you can find that out is pretty expensive.

What stop sign 😂

Gary, sounds like you got the bike running extremely well. That was interesting on the clutch release piece. Now I have to say the personal interview with the bike owner was a very nice addition... Would be interesting to see more interviews.. ie the Harton owner would be cool. I have to admit, no matter who pushed it, getting rid of the chrome was the best idea and it looks good. Just a very good video today.

Very nice! Only thing I would have done different. Would be dual disk and a two into one exhaust.

Nice craftsman work done by you sir....never seen brass pushrod tubes for the IH, can you tell me who makes them. I've had the hex cups on mine for a couple of years fit on good

WONDERFUL JOB HOW SWEET IT IS AND SHALL REMAIN TIMELESS / PRICELESS THANSK FOR SHARING WILD BILL BOSTON/ NEW HAMPSHIRE .

nice, beautiful Sporty !!!

thank you again for your video's, Ove had the same issue before with a clutch popping like that one did, I was lucky I guess, all i did was run thru the Freeplay adjustment procedure again, and it went away, I had come to the conclusion that I was getting more travel out of the mechanism than it was designed for. maybe I was wrong, but it seemed to fix the problem tore adjust and reset the cable throw and Freeplay,// again thank you for all your extra work to provide us all with this video content

I love your holy primary cover! It’s a great tool.

So nice to hear comments from the owner! Great job! Would you use the Avon tires on a '58 Sportster or another brand?

Just amazing all you do and not even open a manual. What skills my Freind.

Excellent build very well done .

Cool video Gary! Very nice bike! You make it look easy!

What a beautiful good running Ironhead there Mr Gary x2 lol 😆 I’m going to be trying to start my ‘73 Ironhead chopper hopefully today after it’s been sitting for what I believe to be about 20+ years. Needless to say I am just a bit nervous. 😬 Anyway I really enjoy your videos and I’ve learned a ton from watching You on TH-cam for a few years now 👍👍Thank You

Very nice

Nice boring head. Well done!

Pretty sure welch plugs are available in multiple sizes at any quality auto parts store....all the way down to 1/8 inch.

Thanks!

Another great video !

Gary, great work! Couple questions, how to anneal the head gasket , and do you use copper coat on the base gaskets as well? Thanks for all your help! Have a great day! Thanks!

Man, what a can of worms you opened up! Great work on the repairs! Thanks man 🤘

This is the stuff that an average shop can’t do. You are saving major components without compromising reliability and function. I love it! And stop calling yourself an amateur machinist. I envy your skill!

thought you were going to chain drive

Fairly typical Ironhead.