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1974 Norton Commando 850 - Part 9 - Flow test and new pilot jets

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1974 Norton Commando 850 - Part 9 - Flow test and new pilot jets
Just a couple of minor jobs coming out of the recent test ride around the cul-de-sac!
1. There seems to be a flow problem!
2. I’m changing out the original size 17 modified pilot jets in the air and a L Premier carburetors for a more appropriate size 19 jet. By all accounts, they help the bike run a little richer.
Music: Inevitable Hope - RKVC from the RU-vid Studio Audio Library
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Опубликовано:

6 сен 2024

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Комментарии : 84

@mitchburk5112 2 года назад

If you look at the jet just above the tapered part there should be some rings. 2 rings is a #17 and 3 rings is a #19.

@TheMightyGarage 2 года назад

Thank you very much, Mitch! I didn't know that. I just checked the jets that I took out and there are no rings, so I suspect they were not Amal but other aftermarket jets. I see now what you mean with the 1 ring = 15, 2 rings = 17 and 3 rings = 19. Many thanks for your advice! Cheers, Mike

@malcolmbennett3555 Месяц назад

I just rewatched this vid and read comments.......my pilot jets are 2 ring, ordered #19s.....always learning, thank you

@MrBeracah 2 года назад

Shows you just how easy it is to miss something no matter how thorough you try to be in your assembly process.. Thanks again for the reminder.

@junglie 2 года назад

About the sweetest commando i've heard run.

@wlingrell Год назад

Loves these old bikes. They sound great and look great. Learned a lot about mechanics working and fine tuning these beautiful machines. Those were the good old days. They were simple yet a fine art to keep them running at there best. The worst thing about these bikes is that you can't keep the silly grin off your face while riding them.

@donparker1823 2 года назад

Looks just like I remember at the Norton dealership back in San Mateo CA when I was in HS.

@TheMightyGarage 2 года назад

Cool Don! It's a pretty rare color. I bet it must've been quite a sight to see a whole row of brand new bikes back in the day. Best wishes, Mike

@tylertheblac 2 года назад

I might honestly be the youngest Norton owner I might need to move to Oregon to be around more of these amazing bikes!

@TheMightyGarage 2 года назад

😉😉Come on over Tyler, you would be most welcome!

@johnmcclain3887 2 года назад

Here I thought you were going to a "flow bench", but you clearly went the right place, very nice little plug.

@johnb5519 2 года назад

That's great. I find taking a closeup shot of jets and carb seats with my phone, and blowing them up, reveals a lot more detail than anything else.

@tmackinator 2 года назад

I installed #19 pilot jets in my 71 Roadster with new premier carbs for much the same reason. It was defiantly an improvement. I did the same to my 71 Bonneville and it was an amazing improvement.

@viramati5831 2 года назад

Always so relaxing watching your videos. a real antidote to these hard times

@TheMightyGarage 2 года назад

Many thanks. I know what you mean! It's a nice escape for a moment. Best wishes, Mike

@juddhadley8778 2 года назад

Sounds lovely mike. Amal supply 17 pilot jets for the premier Trident carbs, but most owners also change to a 19 pilot jet.

@TheMightyGarage 2 года назад

Thanks a lot, Judd. These new 19s are much better than the old jets, thanks for your note. Best wishes, Mike

@dennisrichardson8386 2 года назад

My 1968 750 commando ran out of gas in the middle of the Tacoma narrows Bridge. It had two reserve taps installed. A good Samaritan helped me get more gas. Later sawed the standpipe off of one of them.

@havok531 2 года назад

That's what a proper motorcycle should sound and look like.

@dr.wilfriedhitzler1885 2 года назад

Moderns are ugly compared to these bikes.

@georgemartin5481 2 года назад

Thanks for posting Mike. Any excuse for another look at your beauty of a Commando is fine by me!

@TheMightyGarage 2 года назад

Thank you George! Hope all is well

@elmerfudd1086 2 года назад

Well it sure sounded sweet pulling up your street. Also...how cool it it to see TWO Vincents just sitting there parked???

@anthonycarty9433 2 года назад

I think the O.N.E must hold the record for the most road going Vincent's in one locale . Great to see them being used for their intended purpose .

@elmerfudd1086 2 года назад

@@anthonycarty9433 absolutely. They were built to be ridden, so why not ride them.

@TheMightyGarage 2 года назад

Many thanks Anthony. Yes they are definitely ridden and are great fun. Cheers, Mike

@henryhawk978 2 года назад

One more bug gone. Enjoyed the vid Mike.

@TheMightyGarage 2 года назад

Thanks a lot Henry! There's going to be a longer ride on Sunday morning that I hope you will enjoy. Cheers, Mike

@rogerbranton1752 2 года назад

Well I was gonna post a comment on the desirablity of British parallel twins until at the end when there was that glimpse of the Vincents! 😁 But yeah....who among us can hope to own a Vinnie?? So we're back to parallel twins! Everyone made 'em.....they're all something to lust after in their own way. Triumphs always seemed to have great styling...pick your favourite year and/or model! BSA finally made art with the Rocket Goldie - but again....who'll ever own one?? So a Commando comes out as a strong option. And they're as pretty as those English models they used to photograph sitting on them in the old advertisements!

@TheMightyGarage 2 года назад

Many thanks Roger. I enjoyed reading your note. Yes, I know what you mean about the wonderful styling. There's so much to be said for these bikes of the 50s and 60s and getting into the 70s. Best wishes, Mike

@TheClassicMotorcycleChannel 2 года назад

Nice video Mike :)

@TheMightyGarage 2 года назад

Many thanks and thank you for all your terrific videos. I love watching them all. Best wishes, Mike

@soldtobediers 2 года назад

0:21 Open Road brought to mind the 1st part of Beck's song: ''Ready Made'' An open road where I can breathe Where the lowest low is calling to me I can pull myself back up back down Stuck together like a readymade -DU69160

@waterkoppie 2 года назад

Please be careful when turning the petrol taps. Use finger, but the thumb should support the tap shaft. These are brass, but the plastic ones are otherwise prone to breaking (which you mentioned as well). And the shaft will wear more, so wear out sooner, if the turning force is not supported by the thumb, but by tap shaft and housing.

@bsimpson6204 2 года назад

Where on earth did that muck came from? The bike looks great in that gold metal flake

@pauldow1648 2 месяца назад

Nice bike

@TheMightyGarage 2 месяца назад

Thank you Paul! The orange disco ball color 🪩 has certainly grown on me. Best wishes, Mike

@jimbyrne9071 2 года назад

This just keeps getting better and better.

@TheMightyGarage 2 года назад

Many thanks Jim! I hope you will enjoy the upcoming video on Sunday morning 😉

@checkyourhead76 2 года назад

Love that colour Mike!

@aiflechita 2 года назад

Mike : Piece of cake....,!!!!! Thanks,,,

@speedtriplerider7853 2 года назад

Great job Mike and great video. Every time I watch one of your videos I learn something new - today: how having the right tools makes life so much easier. Looking forward to the next workshop video. Cheers marra

@wdhewson 2 года назад

In the dying days of NVT etc, Amal was pressed to lower and lower prices as a supplier. And Amal products got worse and worse. But you'd think that the newly contemporary Amal carbs would be much better.

@williamharring5536 2 года назад

Paint looks awesome!!! Good one Mike!!! Hello to you from North Texas!!! Home of Big D Cycles!!! Haven't been down there in a while!!! Take care!!!

@bundook303 2 года назад

Nice job Mike!

@gillestrombetta3019 2 года назад

Superbe vidéo très bien expliqué,très intéressant ,merci MIKE

@johnos23 2 года назад

Rotor!!…….. Mike, you’ve been there too long……😁

@gregbrassington2120 2 года назад

Coming along nicely Mike 👍

@garycb8592 2 года назад

Sounds better....

@tadpoles10 2 года назад

Good news Mike, sometimes it's just a simple 'fix' for a great result .. 😉.. 🏍 atvb t ..

@lumpycammotorcycles5481 2 года назад

Very nice - looks mint!

@TheDavey333 2 года назад

It’s that man Geoff again 😀 Was he gone for along time, I know I would of gone for miles just to give her a good test 😂

@TheMightyGarage 2 года назад

Hehe, I thought he might not come back, David. He wasn't gone long fortunately. Hope you will enjoy the longer ride coming up on Sunday morning, with Geoff as my wing man!! Best wishes, Mike

@practicalplinking6133 2 года назад

did that make it better than the Vincent parked at the curb??

@uwekarstens3384 2 года назад

The devil is a squirrel, as we say here in Germany. Der Teufel ist ein Eichhörnchen, for those, who will train their German a little. Regards Uwe, safe rising!

@MothershipVideos 2 года назад

Yah! Success

@Kevin-cy9cv 2 года назад

Funny the jets aren't stamped and it also shows that something which looks clean and new might still be the problem like the tap.

@TheMightyGarage 2 года назад

Hi Kevin, thanks a lot. I just learned today that the official Amal jets are identified by the number of rings/grooves that they have at the tip of the jet. The ones that I took out didn't have any rings and so they mustn't have been OEM or perhaps they were older. Cheers, Mike

@BunyipToldMe 2 года назад

How many of us can use the word "Amol" in a sentence and not include a swear word? Well done Mike!

@TheMightyGarage 2 года назад

😀😀 So true! 😀

@dgordon130 2 года назад

I love these videos, and would like to ask Mike, if there is a video of recommended garage gear. Bike lifts, or others which are worthwhile. Also need to ask for your thoughts on the W800. I know, not British, but for those without the wherewithal, the purest homage to British bikes out there. Imho. :-)

@TheMightyGarage 2 года назад

Thank you very much for the suggestion. That's a really good idea. Yes, I'll give that some serious thought about doing a video of my favorite tools and equipment in the garage. I really like the new Kawasaki W800. They are a really great looking bike. I know what you mean about being closer to an original classic than some of the new modern classic triumphs. In the video that will go out tomorrow morning, there's another sneak peek at Pam's W650. Her husband Bruce started it up again and it reminded me again of the video in the cul-de-sac and how cool the bike looked. Best wishes, Mike

@raypusey8037 2 года назад

Thanks for sharing Mike ! Question 🙋‍♂️ “ you don’t do Gallstones on the side mate do you “. Ray🇬🇧

@TheMightyGarage 2 года назад

HAHA! I've had had mine out, but I'm sure I could get my old endoscope camera out and some Whitworth tools and have a go, Ray 😉😉

@vorhese 2 года назад

A few comments. A) What the heck was that in the petcock and how did it get thru the screen? B) I had to go to 19s on my 930 premiere's on my 62 Bonneville, those jets ain't cheap and 3) I've noticed that the new monobloc carbs seem have issues with the tickler getting enough reach to flood the carb. I've had to machine a longer tickler to make it function properly. You could be there for days holding it down and nothing would happen.

@TheMightyGarage 2 года назад

Thanks very much! I'm not sure what that buildup was in the petcock! That's a smart idea about making a longer tickler. Yes, the 19 pilot jets seem to have done the trick! Thanks a lot, Mike

@keithgarland3404 2 года назад

I really enjoy all your videos and I hope you don't mind me saying. The Norton tick over sounds all over after the run and didn't sound right on setting of. Now you probably know better than me as you have a lot of experience with Nortons but from an old mechanic something doesn't sound right.

@TheMightyGarage 2 года назад

Thanks a lot Keith. No problem at all. I've still got some fine-tuning to do on the carburetors. It's getting getting closer, but I need to put them on the synchronizer to make sure that they are balanced and set better. cheers, Mike

@keithgarland3404 2 года назад

@@TheMightyGarage ok Mike. Keep up the good work.

@tandem8 2 года назад

You need to stop washing your socks in the fuel tank Mike (Grin)

@TheMightyGarage 2 года назад

Haha! That must have been the problem 😉

@gerrypowell2748 2 года назад

👌👌👌👌👌

@RWayne-nu2fi 2 года назад

Great video, thanks for posting. Any idea what, exactly, the obstruction was??

@TheMightyGarage 2 года назад

Hi Rod, I don't know what it was. Possibly some tank cleaning fluid or something like that? It was a relief to clear that blockage 😉 Hope all is well!

@Cobra427Veight 2 года назад

Hi Mike , have you been through your gearbox to replace the dreaded Portuguese layshaft bearing ? I have a 73 MK5 750 , and was wondering when they might have started using them . Cheers from NZ .

@TheMightyGarage 2 года назад

Hi, I haven’t been through the gearbox yet. It seems OK, but I must say that I noticed a little whining noise when I was riding to the club last weekend. I’m going to pay close attention to that. Best wishes, Mike

@Cobra427Veight 2 года назад

Thanks , with your rotor , check your spigot size or if the chamfer isn't big enough , it should be obvious what's causing it to rock. Great to see your videos all good and informative. .Cheers

@yds250 2 года назад

So the fuel tap was blocked with ear wax !.

@TheMightyGarage 2 года назад

😀 hehe, it sure looked like it didn't it!

@mickducati1947 2 года назад

😜🏍👍

@uwekarstens3384 2 года назад

Riding.....

@misterk4580 2 года назад

"Cycle" magazine, Phil Schilling 1974. "The Norton vertical twin should have died and gone to legend a generation ago. In a world of perfect logic, engine designs should never maunder on for decades and finally be crushed by onrushing technology. Good ideas deserve better. Good engines should go to harvest in the fullness of their autumn; most mechanical things which struggle on simply die cold and wretched in December. Seasons do not cover England in perfect symmetry. Spring is cold and damp, and so is fall and winter. Onrushing technology there slows; the present walks in cadence with the past. And mechanical things like the Norton twin soldier on and on...through the Fifties...into the Sixties...and reach the mid-Seventies. In other places, someone would have raised the last hurrah at an earlier stage-when the original 500 twin turned to a 600, or 650, or 750, or 850. But somehow, no matter how deep Norton reaches into December, the final cheer never comes. There's only the next hurrah."