GS1000 Episode 4 - Carburetors and Coffee
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- Опубликовано: 26 сен 2024
- Working through the Mikuni BS Carbs on Bill's Bike
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I have just restored a gs1000g andy, it took me 18 months, I to had dramas with the carbs, just wouldn't start when cold cleaned the carbs inside and out all new jets, diaphams every thing still wouldn't start good when cold, so I got a set of second hand carbs from Holland $125 shipped, swapped everything over, runs great, still don't know what it was, in the enricher somewhere, keep up the interesting work good luck.
Hell you are a patient man...not one swear word.
Great to see someone who knows what their doing at work. A real education. Can't wait to see the bike running. Best Wishes Paul.
The joys of neglected carburation. Great work fella
Yep these old carbs are testing you !! I like the good old approach of solving the issues over the modern approach of binning the old and finding new "alternatives". Good luck
Yep, that's how just about every job goes for me. There is always something unexpected and usually painful happening. Good to see that I am not alone. Thanks
rsm8
Love the Chinese safety boots
Safety third 👍
Loving this project.
Love these detailed videos
Sat down watching and enjoying another of your great vids. Drinking my coffee and hearing those sweet words do you want a coffee fart face. Laughed so much I spilt my drink,now I’m in for it when the other half gets in 👰👰👰👰👰 keep up the great work Andy best of luck in the new job.
Keep ploding along Andy, top content
Those carbs certainly putting you through it fella, but talk about timing :) Great series of videos, really looking forward to part 2. Take care Andy, ride safe.
Great stuff as always Andy.
In the absence of any jis screwdrivers in the UK in the 70s (except the cheese metal one that come with the bike) I used to use an impact driver to undo everything on the bike, which seemed to work!
JBM Industries make replacement diaphragms boots and stuff for those carbs if you can get them where you are. Good prices. Also the GS Resources site, has a guy you can get all the O rings for all the places where they go on those carbs ,for a good price.
I’ve used the JBM diaphragms in the past, pretty good for the money
Great vid, looking forward to seeing your resolution for the broken post.
Cheers from Ontario, Canada
I did a ghetto fix on one a while ago, but I’m going to try something different this time. If you’re interested in the easy fix check it out here ruclips.net/video/KJevEXjS8VI/видео.html
Pain in the ass
Great video as always mate 👍
Those carburetors have not seen a good clean for many years, had 2 days of work with mine. Scared the hell out of me when 3 pilots were REALLY stuck....right size screwdriver, coffea and some anger managment is the solution. It´s all about taking good time with it. Have the same bike. After re-jetting it´s running VERY good. sometimes we get lucky :p Main needle up one notch, 125 pilots and 140 main. K&N podfilters. Good job Andy :)
Following this with interest to see the outcome, I have my gs 550 carbs to clean same make!
watching this nearly 1 year later. if the stud extractor doesnt work , tap a left hand thread and use a left hand thread bolt to extract the jet
Fart Face??? Dont you just love it when they whisper sweet nothings to you. Hope the new job is going well Andy, top work on the GS as usual, looking forward to watching the rebuild.
She’s a keeper Chris 👍
Thanks Andy, learning a lot.I'm about to clean 1990VFR carbs for the 1st time there pristine compared to your buggers.
If those air screws have never been out I believe they put a drop of paint in there so they can't be fooled with. Solvent on them for a bit will help removal
Good tip, thanks mate
I could do a two hour installment of this, I got plenty of beer to sustain me !
we have the same air compressor
Not a bad jigger for a home gamer
Andy's Motorcycle Obsessions i over work mine with rattle guns die grinders .nibblers angle grinders and rachets i mske it work for its living
damn those pilot jets!!! mine are stuck too. was that a left handed drill you used initially or a normal one?
Thanks again Andy.
I’m sooooo enjoying this project.....even checked my RUclips a couple of times over the weekend to see if there was a fresh ep.....have NEVER done that before!!!
There will surely be a collective cheer from around the globe when you finally fire this bike up.
So, from a preventative perspective, do you have any ideas as to why the fuel system is so clagged up??
Cheers, Muz’n’Kathy.
Hey Andy, how is the new job going mate, all good I bet .....as always great content
Busy af
I guessed as much ...enjoy the learning curve
Mikuni BS34SS
Watch out for where to measure the float height. I hear it's weird to measure to the step instead of the top of the float.
I have Mikuni BS36SS carbs on my Suzuki GR650. Most mechanics I've spoken with say to measure to the lower step and NOT to the uppermost portion where the bracket attaches. The service manual is terribly unclear.
You can watch how I set them here ruclips.net/video/YiWnXu0KNCs/видео.html I’ll be using the same method
OK, different floats, and you measured to the top. I've heard that's normal. The GS float spec is to the step just below the top. The factory service manual is available for download here: gsarchive.bwringer.com/mtsac/~cliff/storage/gs/GS1000.pdf
Page 15-38 (pdf page 301) shows where to measure the float height. Unfortunately, it's hard to see on that scan (I've seen better somewhere), but you can see it's not the top of the float. That manual also shows the slightly odd valve clearance procedure.
OK, the 1980 supplement shows it much more clearly. Page 36 (38 of the pdf) here: gsarchive.bwringer.com/mtsac/~cliff/storage/gs/GS1000_1980_Supplement.pdf
Yes, the float style in those manuals is the same as on my BS36SS for the Suzuki GR650. My Suzuki manual is unclear, but seems to show measuring to the very top of the float where the bracket attaches. That didn't make sense to me, as all other BS carbs with this style of float requires measuring to the lower step, as you point out. I can't trust my manual on that issue, as the photo and writeup is also wrong in other ways, so I set mine to the lower step with no spring compression. Just wanting to ensure I'm correct before installing the carbs ;-)
Hey matie, trying to fit the same carbs on a gsxr750 1985. Just trying to work out what jet sizes to use. I've got bs34ss. Great video's. Hi from albury 😀
Bruce Kirk no. Stock exhaust and air box
I used to have one of those, the stock flat slides where crap. They might have been OK for a race bike but on a road bike with a shed ton of miles on it there where a nightmare.
I'm following how you deal with the issues on these carbs. I have Mikuni BS36SS carbs on my 1984 Suzuki GR650 that I am doing a bit of a build on. Mine do not incorporate the pilot jet plugs; there is no passage to the pilot jet from the emulsion tube housing. Interesting that Suzuki had these built by Mikuni in different ways, while still under the BS designation. I've rebuilt mine, but I remain in doubt about how I set the float heights. The original Suzuki manual is not at all clear. The photo seems to show the float height is measured from the carb body (without gasket) to the uppermost part of the float where the bracket and tang attaches. My experience, and that of others I've spoken with, is, you measure to the highest portion of the lower step where the float begins to round out (if you get my drift). So I'm hoping that setting the heights to factory spec in the way I've done it is correct, rather than terribly lean. Do you use factory height spec to the top of the lower step? Just want to get some confirmation before installing the carbs ;-) Really enjoy your videos. Thanks a bunch :-)
You can jump ahead by going backwards and checking out a video I did on bench tuning and setting the floats on a set from a XS11 here ruclips.net/video/YiWnXu0KNCs/видео.html
Thanks, but those floats are not the style I have in the BS36SS carbs. Mine and most others I've seen from those BS carbs have a float that steps down from a flat top section, then is flat again before the curve starts. Here is what I mean. Just trying to confirm that method. ruclips.net/video/95nlrP-yn2I/видео.htmlm11s
Andii am a fan! i am from texas ! been transplanted here in tennesseea. i hve a barn find GS1000. i'm only getting 60 psi compressionon. that motor would be closer to 100?
Should be at least 100
Suzuki workshop manual states 128 - 184 psi with a service limit of 100 psi
Can you drain the bowls while the carbs are still in the bike?? Without making a mess that is. ?
There are two questions here. 1. Yes it’s possible to drain them in situ. 2. As for the mess, that’s up to you. Something to cary the fuel away to a container would be advised.
@@ANDY5 well .. I'll give it a try... Sounds like I'll be fashioning a tin foil funnel!
Or a piece of angle iron or small channel. Anything to direct the fuel away.
so after taking them out of the bike you are totally fine to soak em down with brake/carb cleaner and just have at them and scrub? no worries about ruining internal parts with the cleaning solutions (aside spraying directly into the holes as you mentioned)? I'm about to start on my xs1100 carbs :)
Yes just avoid spaying anything with rubber on it
You can buy brake cleaner that is O-Ring safe.
Fart face hahahaha awesome 😂
Love her
It's always the 4th carb that gets ya. If anybody can figure this one out, it's you Andy! These are the best motorcycle videos on the web ... keep them coming!
Stick with it Andy we have faith in ya 👍😆
Shame about one of those carbs having a broken float post mate, you going to fix it? I recently repaired some alloy with some special rods that you use with a gas torch, bit of bugger to get right you need to have a little practice first, the secret is getting plenty of heat into the metal, I think Matt from the workshop done a video on it a while back...... it's tricky but it can be done. It will save junking the carb.
Enjoying the vids, fartface, hoping to see the old fella riding it
good vid. can you recommend some jis screw drivers in Aus?
Rhino Tools mate rhinotools.com.au/?s=jis+screwdrivers&post_type=product
Andy's Motorcycle Obsessions cheers those impact drivers look great
It's not right, keep expecting you to say welcome to basket case. You could say welcome to basket case 2.
lol
LOL, Oh those loving words. You want some coffee? LMAO!
She’s a keeper
Morning Mate. One small correction and a carburetor suggestion.
The Suzuki GT750 (Water Buffalo) was the first production bike with CV carbs. Period Test report in Cycle magazine stated that the 1971 ( I think ) GT750 was the first stock production bike to make it to the summit of Pikes Peak with out modifying the, thne brand new on the market CV carbs. As I am still in love with the Buffalos (Kettles) have owned two, I still have that article somewhere
I learned the real trick to cleaning carburetors when I live in one of our coastal states and did quiet a few carb repairs for my customers.
An inexpensive Ultrasonic Cleaner is indispensable for cleaning old carbs. Today's methanol infested, contaminated gasoline will turn to jello when they sit with fuel in the float bowls. I found the easiest and best way to clean that miserable stuff and it's assorted crud was a couple of hours in an ultra sonic tank with a few drops of Dawn dishwashing liquid. Then a copper wire and a blow gun (low pressure) turned a long tedious job into less than than a couple of hours labor. Easy Peasy. I still do a few older bike carbs here in the desert, but they are not near as bad without the humidity.
FYI, I can buy an Ultrasonic cleaner big enough to do a couple of carbs for less than $75.00 USD. My guess is you can find one at your equivalent of Harbor Freight or on Ebay.
Jim Jaudon
Mescal, Arizona
Thanks for the info mate. Just a small correction on your correction, I said the first four cylinder four stroke bike to be fitted with CV carbs was the XS11, and it was. Ceers, Andy
Missed the 4 stroke part. But I am deaf as a post and worst part is I don't listen worth a damn.
However I am not wrong about the ultrasonic cleaner.
Jim