Author Topic: Rinse carbs after soak? (Read 7583 times)

RAFster122s · « **Reply #25 on:** October 17, 2018, 09:06:22 PM »

Vapor blasting micro peens the metal. Glass bead blasting the outside of the bodies while prepping them you plug or tape every surface opening so you do not get glass bead in the carbs. It is a very nice finish too. But, if you can swing the $2xx for Nils, it is recommended as they are beautiful. Ask Nils about the passages if there is anything he does to clear them.

Even Chem Dip which is made for carbs will destroy a carb left in it too long turning the body dark grey and it can cause some carbs to fall apart when left for too long. So, no you should not feel stupid or dumb. I have that badge on a SU HS6 carb body with Chem dip.

jakec · « **Reply #26 on:** October 18, 2018, 09:06:24 AM »

Thanks RAF. I actually left the bowls in for only one night and they turned out great. I should not have left the rest of the rack in so long but i didn't think that added time would make a difference. I should have just done more research.

jakec · « **Reply #27 on:** October 21, 2018, 11:28:15 AM »

Quick question: I'm not yet sure if I'll be getting new bodies and transplanting my parts in, or getting a full new set of carbs. If I were to reuse my throttle slides, what would be the best way to clean them? I'm guessing really fine steel wool and just some careful scrubbing? I would like to salvage those parts if possible since they are like $20 each.

754 · « **Reply #28 on:** October 21, 2018, 12:07:58 PM »

If they are black they are anodized , be carefull .
The other year has chrome brass ones. And the 77 has adjustable needles, they are preffered.
Let me know if you need the body.

jakec · « **Reply #29 on:** October 21, 2018, 05:15:36 PM »

Quote from: 754 on October 21, 2018, 12:07:58 PM

If they are black they are anodized , be carefull .
The other year has chrome brass ones. And the 77 has adjustable needles, they are preffered.
Let me know if you need the body.

They a graphite color. I will be careful not to remove any finish. Are you offering to sell me a set of carb bodies? Because I would be interested! I'm currently looking at getting used sets on the rack off of craigslist. I figure whatever I get I'll have to rebuild so why not put my parts in a new set of bodies.

754 · « **Reply #30 on:** October 21, 2018, 06:47:15 PM »

What i was going to do is pull a body off a incomplete parts rack.. I think we need #1
Maybe see if you can get a complete set ....77 has the adjustable needles.

scottly · « **Reply #31 on:** October 21, 2018, 07:31:39 PM »

Frank, sounds like you are talking about 750 carbs, not Jake's 400 carbs?

754 · « **Reply #32 on:** October 21, 2018, 08:29:31 PM »

I am and I see now, that they are probably 400 carbs.. must be PD type and look similar..
My bad..

lowriderbud · « **Reply #33 on:** October 22, 2018, 06:58:15 AM »

What are the PD model # you are looking for? I have a rack of PD50-A carbs. Miss #2 float bowl and tops, but I will make you a sweet deal if you can use them.

Later, Bud...

jakec · « **Reply #34 on:** October 22, 2018, 07:13:50 AM »

I'm not sure what the model number is but I can check on the bodies when I get home from work tonight. Where do I look on the body? These are for a 1975 400f.

lowriderbud · « **Reply #35 on:** October 23, 2018, 06:20:40 AM »

Model #s are on the right side of the #4 Carb just above the float bowl.

Later, Bud...

jakec · « **Reply #36 on:** October 24, 2018, 09:27:30 AM »

Quote from: lowriderbud on October 23, 2018, 06:20:40 AM

Model #s are on the right side of the #4 Carb just above the float bowl.

Later, Bud...

I could not find a number where you described, but I was able to find another number stamped on each body, it was 054A.

jakec · « **Reply #37 on:** November 08, 2018, 12:05:51 PM »

Does anyone know if Lowrider's carbs will work for my bike? I've read on here that you can also consider 350f carbs for the 400.

jakec · « **Reply #38 on:** November 08, 2018, 08:40:10 PM »

I found this set on ebay that looks to be in pretty good condition for a fair price. I contacted the seller about the number on the carb body. If the carbs came from a 400F then they should be fine right? Nothing changed across years did it? I also asked him why he listed them as "for parts" (makes me think something's up!)

He is also located in my area which is cool I guess.

https://www.ebay.com/itm/1972-1977-Honda-cb400f-cb350f-cb350-cb400-cb-400-350-carburetor-carbs-carb-PARTS/292809479130?fits=Model%3ACB400F&hash=item442cce13da:g:kDsAAOSwdmlb5QlY:rk:14:pf:0

lowriderbud · « **Reply #39 on:** November 09, 2018, 04:50:50 AM »

The carburetors on eBay look great - complete and clean. Also, the price is fair and the fitment chart says they will fit your bike.
You might contact the seller to see if they can provide more information about the condition (ie. slides work smoothly, nothing binding, etc.) Make them an offer.

Later, Bud...

jakec · « **Reply #40 on:** November 09, 2018, 09:11:19 AM »

Quote from: lowriderbud on November 09, 2018, 04:50:50 AM

The carburetors on eBay look great - complete and clean. Also, the price is fair and the fitment chart says they will fit your bike.
You might contact the seller to see if they can provide more information about the condition (ie. slides work smoothly, nothing binding, etc.) Make them an offer.

Later, Bud...

I agree, they look nice. HOWEVER, if you look at his ebay store he has two sets listed, this one at $150 "for parts" and another at $250 listed without the "for parts" note. So it makes me wonder if there is something wrong with them. I'm waiting for a response now.

jakec · « **Reply #41 on:** November 09, 2018, 12:26:52 PM »

The response:

Quote

Hi, the slides are stuck, they will have to be completely taken apart because there is too much sand in the slides, these were out in Arizona so they were buried with sand at one point I just hosed them off but sand got in a lot of spots,, they can be cleaned but they will have to be completely dissembled to do that.

I don't mind taking them apart. They look nice on the outside. I can get a set off of a bike that has been sitting outside here in Seattle and the outside will be covered in white corrosion. I worry about sand in the bore of the throttle, though?

jakec · « **Reply #42 on:** February 11, 2019, 05:07:25 PM »

I ended up finding another set of carbs with good bodies. Having learned from my mistake a lot from this post, I am planning to get an ultrasonic cleaner and use purple simple green 50/50 with water.

My question is: I see a lot of discussion about getting a unit that can fit a whole carb rack.. Is it safe to assume that it's alright to leave rubber parts on? Like the fuel T tubes and others that would require dismantling the rack to remove.

Also, I just read on the forum here that a "rainbow" color to the carb bodies is natural after ultrasonic cleaning as this is the way they came from the factory. I had always assumed that the dark satin grey color that you usually see was normal.

sixthwisconsin · « **Reply #43 on:** February 11, 2019, 05:56:18 PM »

I don't think HF makes one big enough for the entire rack unless that's something new. Mine will do one carb body and all the internals. I use the Simple Green Pro HD 50/50 and give the longest cycle of 480 sec with the heat on. It takes me 7 or 8 cycles to do an entire rack that is dissembled along with all the linkage.

After one cycle is done I dump in the next and get it going while I rinse the clean parts with hot water thoroughly and blow dry with the compressor. Here is the result.

jakec · « **Reply #44 on:** February 11, 2019, 06:10:41 PM »

Here is the one that I am considering. I have not measured yet but I assumed that it would fit. Basket size is 13x12x6" according to the answer provided by someone who bought it. I measured my 400F carb rack and it was about 12x7x6" measured conservatively, if you ignore the throttle cable perch. I think with the 12" width of this unit I should be able to fit the whole thing.

https://www.amazon.com/gp/product/B0140M8H9E/ref=ox_sc_act_title_1?smid=A2RB21RUGRFV4T&psc=1

jakec · « **Reply #45 on:** February 25, 2019, 10:06:19 PM »

Here are before & after photos of the carbs after using the ultrasonic cleaner at 35* C, with 4:1 distilled water & simple green HD. Although the simple green HD is "aluminum safe" it still leaves a bit of haziness on some aluminum. You can see that it did bring back a lot of the rainbow color to the carb bodies, though.

People on here were saying 1:1 water and simple green but I went with 4:1 to be safe. Debating if I should put them back in or not. I am currently running the rest of my parts (screws and stuff) through with just water to see how they look.

sixthwisconsin · « **Reply #46 on:** February 26, 2019, 05:19:45 AM »

The ultrasonic cleaners have come way down in price since I last looked. I might have to look again at the larger ones. I have been using 2:1, maybe 2.5:1 of Simple Green HD with really good results.

jakec · « **Reply #47 on:** February 26, 2019, 09:00:52 AM »

Can you share more about your method? I was using only 25% simple green HD and I was still seeing a tiny bit of the frostiness coming up on certain parts. This is with the carb rack all assembled, aside from bowl and dust covers.

I would like to put them through again, but I don't want to go too far.

sixthwisconsin · « **Reply #48 on:** February 26, 2019, 09:20:01 AM »

Sonic cleaner then rinse thoroughly with hot water. I have a slop sink in the garage and just run them under hot water for a good long time. Be sure water is running through all passages. I then dry with compressed air blowing out all passages.

jakec · « **Reply #49 on:** February 26, 2019, 09:25:54 AM »

That is basically what I did, hot water in the sink immediately afterward, and blow dry with heat gun. (Don't have compressed air)

I saw earlier you said you did 8 minutes at a time, and heat on. Do you know how the temp affects the results? My carbs clearly did not come out looking as fresh as the ones you posted. I am wondering if it's primarily the combination of different metals together in the bath that creates the white build up? if you look at the top right corner of my after photo you can see some white stuff on one of the silver parts.

also when you say 2:1 of 2.5:1, do you mean 2 simple green to 1 water?

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Author Topic: Rinse carbs after soak? (Read 7583 times)