Rebuild Bing 94/40, 64/32 CV Carburetors

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Rebuild Bing 94/40, 64/32 CV Carburetors

Рет қаралды 6,001

Brook's Airhead Garage

Күн бұрын

Пікірлер: 42

@kevinarmstrongyoutube Ай бұрын

Thanks Brook! Note: my 32mm carbs on 84 R65 have a circlip holdin the jet needle. There is a screw plug that must be removed to remove the jet needle. When I saw how easy Brandon pulled and the needle slid out, I checked the other end and noticed a slotted head. Unscrewed it. Voila the jet came out after the plug. Great that you are continuing to document your experiences and passing it on to Brandon too.

@cdong007 3 ай бұрын

So helpful. As a new vintage BMW Airhead owner, your videos help me gain enough confidence to play it by myself.

@BrooksAirheadGarage 3 ай бұрын

You’re welcome Adam 😊

@lupo631 6 ай бұрын

Your videos are always a pleasure to look at. Thank you for your effort! Greetings from Germany.

@BrooksAirheadGarage 6 ай бұрын

Thank you Lupo. 🙂

@marcdeangelis3497 8 ай бұрын

Very informative tutorial. If I may make a minor comment, it could use a few words on float alignment. With the carb upside down, the float should be parallel to the edge where the float bowl rests. I suspect it is more important that the two floats (L and R) be lined up the same than to have them perfectly parallel, but I'm not sure. Anyway, I would recommend checking the alignment of the two floats side by side to make sure they match, As far as the procedure, when upside-down, the float is held up by the needle. Therefore, any misalignment can be corrected by bending the tab to which the needle is attached until the desired orientation is achieved. Important: make micro-adjustsments and be patient! I believe there are tools that can be purchased for the specific purpose of measuring float alignment, but they aren't much better than the naked eye. (Just an opinion) Brook, please correct me if I'm wrong.

@nigehaworth 8 ай бұрын

If that alignment of the floats is incorrect, would that cause a fuel leak from the carb?

@BrooksAirheadGarage 8 ай бұрын

Thanks for the comment. My method of getting the floats adjusted is after they are mounted. I turn the fuel on with the float all the way up. Then I lower it until fuel starts dripping. I adjust the float tab so the dripping occurs with the edge of the float parallel to the bottom of the carb.

@BrooksAirheadGarage 8 ай бұрын

@@nigehaworth Yes, it can cause a leak if it's far out of adjustment. That said, the issue is to have the correct fuel level in the float bowl so the carbs work correctly and don't get fuel starved when the throttle is wide open.

@nigehaworth 8 ай бұрын

@@BrooksAirheadGarage Thanks Brook, I had my carbs refurbished and whilst they function well I have a leak on both carbs when the engine is off, until I turn the fuel taps off. I’m suspecting the floats are set at the wrong height.

@BrooksAirheadGarage 8 ай бұрын

@@nigehaworth I'd also check the float bowl vent tube to be sure it's clear.

@TheAlpineProject 6 ай бұрын

Very thorough and informative video. Thanks for making this. I just got my old R75/5 back after more than ten years and it's got a rusty tank and leaking carbs. It's been sitting far too long. This video will be a great resource for getting it going again.

@BrooksAirheadGarage 6 ай бұрын

Brian, I'm pleased you are going to get another airhead back on the road. Cool beans. 🙂

@alicewandler 7 ай бұрын

Godbless you for this video. It is so hard to find well done instructional videos on things like these. No extra fluff just straight to the point. Very thorough. And great explanations on not just what needs done , but why it needs done. Thank you.

@BrooksAirheadGarage 7 ай бұрын

You’re welcome Alice 😊

@seth3798 4 ай бұрын

The clearest video, thanks. I have an R80 ST with a Sibenrock 1000cc conversion with dual sparks.

@BrooksAirheadGarage 4 ай бұрын

Thank you Seth. 🙂

@michaelcrenshaw9199 6 ай бұрын

Very well done. One critical piece that is missing is to check the float level is correct. Per the Bing manual this level check requires holding the carb body at a 15 degree angle to insure the seam of the float is parallel to the carb body. One cannot assume that the tab on the float is set correctly.

@BrooksAirheadGarage 6 ай бұрын

Michael, I set the float height when I mount the carbs. I turn the fuel on and drop the float until the top edge of the float is even with the bottom edge of the float bowl. I make sure no fuel is flowing. Then I drop the float just a bit and ensure fuel starts flowing. That's why I didn't show setting the float height during the carburetor rebuild.

@KSJ1986 4 ай бұрын

❤ all the help i get from you! Thanks for you

@BrooksAirheadGarage 4 ай бұрын

You're welcome. Glad this is useful for you. 🙂

@davidheal4623 8 ай бұрын

Very useful video. A tip: When loosening/tightening the big nut on the "choke" (aka Starting Carb) actuator shaft be careful not to apply pressure on the little aluminum range limiting posts -- they are relatively fragile and if broken could mean replacement of the carb body ($$$). Better to hold the actuator arm with pliers while you turn the big nut.

@BrooksAirheadGarage 8 ай бұрын

Good Advice, But I have a calibrated hand so I just snug it up without too much force. 🙂

@joka9823 8 ай бұрын

Very well done👍 👍 Greetings from Norway❤

@BrooksAirheadGarage 8 ай бұрын

Thank you 🙂

@samirsam4724 8 ай бұрын

merci beaucoup Mr Brook .

@dugdug007 7 ай бұрын

This detailed production was timely as my 904 Bing sprung a leak needing an o ring on the idle jet Kits do not describe which O ring fits what Jet This video does !

@WildlifeMoto 8 ай бұрын

Great video as always. With your last bike complete, are you planning a new project soon?

@BrooksAirheadGarage 8 ай бұрын

WildlifeMoto, yes I have a new project to work on, a 1973 R75/5 rebuild. That said, I plan to use it to conduct Tech Classes for my Airheads Beemer Club-Colorado friends. So, I don't know how much video I will produce. We shall see.

@NChirikos 2 ай бұрын

Brook, I have a set of 64/32/323 & 324 from an '81 R80 G/S. Is there any benefit to changing from the old style needles (with clips) and slides to the new style? Also, when, if ever, would it be necessary to replace all the jets, mixing screw and float needle? I am currently rebuilding them now. Thx.

@Jaceun 8 ай бұрын

Hey Brook, thanks for the video. Always nice to have a Bing rebuild refresher course. On CV Bings not previously fitted with the diaphragm return springs, would you add one if you had the chance, or do you think the change is negligible?

@BrooksAirheadGarage 8 ай бұрын

I think the spring improves carb performance even on earlier ones that didn't come with the spring

@tcmits3699 3 ай бұрын

One of the best BMW carb rebuild video's, you kept calling fuel enrichment, choke. It is a fuel an enrichment circuit, correct ?

@BrooksAirheadGarage 3 ай бұрын

Yes BMW calls it enrichment. That said, it operates as a separate carburetor.

@tcmits3699 3 ай бұрын

@@BrooksAirheadGarage l thought so, that being said. Your video on the Bing carburetor rebuild was one of the most thorough I have ever seen. Thanks for sharing 👍

@Vivianauxito 7 ай бұрын

Hey, Brook. Your video is really informative. Are you open to doing any product review? I was thinking of inviting you to do a product review for our portable air pump.

@BrooksAirheadGarage 7 ай бұрын

Thanks for asking, but I don’t wish to do a product review

@lesleysmith5623 Ай бұрын

I see quite a lot on airhead forums about not using the shorting method with ‘modern’ electronic ignition due to risk of damage to components. Any comments ?

@BrooksAirheadGarage Ай бұрын

Lesley, you have to ensure the grounding spoke+plug screw top are tight and fit snuggly in the spark plug cap. It helps if you put a groove in the unthreaded end of the spoke so it engages the internal spark plug cap clip.