yamaha gt80 carburetor size

So you will get email everytime we post something new here, We guarantee you won't get any other SPAM. Thanks for the info Ray. Would it prevent it from scouring the piston like the old one? Am I wrong? Some 1960's Yamahas (especially rotary valve models) used that kind of "clamp on" carb. It ran when I went to get it. 20X---1.78mm--6.07mm------------13X---2.62mm--15.54mm Max torque was 4.5 ft/lbs (6.1 Nm) @ 7200 RPM. 10X---3.53mm--28.17mm------------7X---5.34mm--40.65mm We will always try our best to satisfy you. Am I missing something? Fits: 37-43mm. Thanks for the input. Oh yeah and I noticed some fuel leaking from the carb somewhere. NOTICE: If you are not a free registered member of the site, you will not see the photos in the forum, andyou won't be able to access our premium member content. Fits: Diameters 50-52mm. A while back I compared the jetting of a bunch of 125cc and 175cc Jap bikes using Keihin and Mikuni carbs, and as I recall that chart corresponded pretty well to the OEM jetting sizes (I had the same info in a Word doc). Single cylinder, single carb. I didnt try starting fluid because there has to be something deeper going on. I would appreciate any help. It's probably a good idea to step up to 1.0 simply because you don't know the history of the bike. Tvs is one of the Biggest Famous Indian motorcycle Honda CB1000R Model is a Street Motorcycle Manufactured by Honda. For E-check payment, shipment will be made until PayPal indicates payment clear. All other company and product names are trademarks or registered trademarks of their respective companies. how do other people deal with obsolete carbs on vintage bikes? A Must For Setting Hidden Fuel Mixture Screws Accurately And Quickly. The Yamaha GT80 B was a single cylinder, two-stroke standard produced by Yamaha in 1975. Typically 105 is low, 90 would be really low. You may be able to make one work. (1.53" - 1.69"), Universal Band Clamp for Carb Holders or Air Boxes 2 Guage Sync Guage Set With Pulse Damper Adjusters We use cookies to improve your experience on this website and so that ads you see online can be tailored to your online browsing interests. 20X---2.00mm--4.40mm------------14X---2.50mm--18.00mm Damineding Moto. Please confirm your address before payment. Did you use a carb rebuild kit? By If the distance is not correct , adjust the float height to the specification. This is obviously a fuel problem in my mind. if they are dirty/pitted then clean them with a business card rubbed between the closed points. Please consider joining our community! **, Central/South America(Mexico / Brazil): 35~55 working days, Shipping from China/Hong Kong/Taiwan to worldwide. Carburetor and throttle body synchronizer kit for bikes with 2, 3 or 4 Cylinders. 10X---3.50mm--30.00mm----------10X---3.50mm--50.00mm. Suzuki GSX 125 Key Features ENGINE Displacement 125cc MAXIMUM POWER7.8ps@9000rpm MAXIMUM TORQUE9.2 2-stroke engine air-cooled Single Cylinder, TVS Raider 125 Price in BD, Review, Specifications, Photos, Mileage, Top Speed & More, Honda CB1000R Specifications, Review, Top Speed, Picture, Engine, Parts & History, Yamaha RD350 (Japan) Specifications, Review, Top Speed, Pics & Mileage, Honda CB1100 (EX, DLX, RS) Specifications, Review, Top Speed, Picture, Engine, Parts & History, Yamaha RX-S 115 (Japan) Specifications, Review, Top Speed, Photos & Mileage, Yamaha YB 100 (Japan) Specifications, Review, Top Speed, Engine & Parts, Honda CD200 Road Master (Japan) Specifications, Review, Top Speed, Engine & Parts, Honda CMX 500 Rebel Specifications, Review, Top Speed, Picture, Engine, Parts & History, , Suzuki GSX 125 Price in BD, Specifications, Photos, Mileage, Top Speed & More. A brand new replacement unit(s) will be sent to you at our shipping cost. After you Register, email nathan@alp-sys.com and let me know so I can activate you. I used to carry abrasive paper to clean them with. The wrong parts jets/needle etc are in the carb, 80-_W0QQcmdZViewItemQQhashZitem2564506d36QQitemZ160596782390QQptZMotorcyclesQ5fPartsQ5fAccessories'>http://cgi.ebay.com/ebaymotors/CARB-CARBURETOR-CARBIE-CARBY-1974-74-YAMAHA-GT80-GT, 80-_W0QQcmdZViewItemQQhashZitem2564506d36QQitemZ160596782390QQptZMotorcyclesQ5fPartsQ5fAccessories. 11" long tool with a 8mm hex nut and screwdriver slot adjusting bolt. Hond Yamaha RX-S 115 Review Yamaha RX 115 Is One Of The Most Performance-oriented bikes in Bangladesh. The reeds look good. Note: This tool is not to be used for long term fuel storage, for safety and to prevent accidental spillage, immediately drain gas back to approved long term storage container after use. What could the hard start be attributed to. (1.45"-1.69") Diameters. Im going to go get a compression tester. If you receive any defective item(s) on arrival, please kindly contact us within 60 days after receiving. (2.48" - 2.63"), Universal Band Clamp for Carb Holders or Air Boxes Adjustable to fit most carburetors. I dimensioned my TK and comparing it to the modern Mikuni's it turns out that the VM16, Mikuni's smallest, is the exact same dimensions all around. It should start on 115 psi compression. When you buy through links on our site, we may earn an affiliate commission. Would this cause some sort of an air leak making it hard to start? I am almost 100% sure there is no blockage of any kind in the carb. (1.92" - 2.16"), Universal Band Clamp for Carb Holders or Air Boxes , Yamaha Carburetor Rebuild Carb Master Repair Kit Jets GT80 GT 80 GT-80 MX NEW. I helped and got to ride whatever we had around that was running and had my own bikes. This item is made with High quality materials. I've never had a bike with this small of an engine. This should be enough compression to at least fire right? Portable Auxiliary Fuel Tank, for Non Fuel Injection Systems. I have a few other charts as well, and they are useless. html, body, div, span, applet, object, iframe, Now im having trouble getting it going again.

Combined Shipping for expedited shipping, pls message us before or after placing orders. If they are badly pitted time to replace. The manifold is still there luckily, but I really need to find something that will work- something that is compatible. I did some more tinkering with it today. Works with Mikuni or Keihin carbs. 1980 Yamaha GT80 --1979 Yamaha GT80 --1978 Yamaha GT80 --1977 Yamaha GT80 --1976 Yamaha GT80 --1975 Yamaha GT80 --1975 Yamaha GT80 MX1974 Yamaha GT80 --1979 Yamaha GTMX --1978 Yamaha GTMX --1977 Yamaha GTMX --1976 Yamaha GTMX --1974 Yamaha GTMX --, Main Jet:#90Idle(Slow) Jet Size:#38Needle:Y66Seat:1.4. I've got two bikes with obsolete carbs and am frustrated with how to rebuild or replace them. No pdf's for some reason. 10X---3.50mm--23.50mm----------10X---3.50mm--38.00mm Mikuni_Keihin_Conversion_Chart.JPG [ 57.08 KiB | Viewed 3195 times ]. If you just don't need the item anymore, pls start the return process on ebay, (view your purchase history / more action / return the item / I dont need it anymore). You had good advice, except it costs $80 an hour for mechanics. #48-1563 It started via full choke and a twisting of the throttle. The front suspension was a inverted forks while the rear was equipped with a non-adjustable dual shock. I think that's a good chart.

Could this cause an air leak and therefore a hard start? We use data about you for a number of purposes explained in the links below.

10X---3.50mm--20.00mm----------10X---3.50mm--34.50mm I checked the engine compression and it was only 30.

Are some of the inside part #'s the same across various carbs? Could someone help me with the carb adjustments. ), The cylinder looks great. The engine was a air cooled single cylinder, two-stroke. There is an air/fuel screw and what I think is an Idle screw. klampton317, Import tax(VAT) will be charged if the total amount over. del, dfn, em ,img, ins, kbd, q, s, samp, It could reach a top speed of 57 mph (91 km/h).

Thanks. 10X---3.50mm--25.00mm----------10X---3.50mm--41.00mm Includes 20 steel wire ends designed for cleaning the tiny holes found in carburetor jets. If is push starts easily but wont fire with the kicker your compression is prob low. For use with Honda, Kawasaki, and Suzuki models (which typically have 5mm connections) that use sets of 2 carbs. Think it may be intended as a replacement. Is this why is was scoured up? Once its going and warm it works awesome. Depending on the year it may still have points. Doesn't look very good. New, High Quality part, built just for the CB750K. Not sure of the interchangeability. I think that is enough to rule out a compression problem. Fits: 109-115mm (4.29"-4.53") Diameters, Band Clamp for Air Filters, Airbox to Carb Joints, Custom Manifolds to Filter Joints and all purpose uses except carb holders. 10X---3.53mm--25.00mm----------10X---3.53mm--37.70mm On the rotary valves they had a"slide cap" idle speed adjuster like the early DT1 and a cable choke. 20X---1.78mm--7.65mm------------13X---2.62mm--17.12mm I ran it down a hill and tried to bump start it. Would like more info on the topic if anyone has any insite. Haynes Fuel Systems Techbook. Lot of fun. Fits: Diameters 45-47mm. 10X---3.50mm--22.00mm----------10X---3.50mm--36.00mm Just burned a piston on 84 kx 80 and have to have it bored. We'd usually have 10-20 bikes at a time. 10X---3.53mm--26.57mm------------7X---5.34mm--37.47mm After that, it was actually idling and sounded really good. Check your floats also: Hold the carburetor in an upside down position. Universal Band Clamp for Carb Holders or Air Boxes Think about it, 80 PSI (lousy for most bikes) is like holding an 40 lb weight with your thumb.

What should I have these set at? Universal Band Clamp for Carb Holders or Air Boxes Carburetor Cleaning Tool Set. Please check with customs office of your country to determine what these additional costs will be prior to bidding or buying. kit de reconstruction de carburateur Vergaser Reparatursatz Vergaser Umbausatz kit di ricostruzione del carburatore kit di riparazione del carburatore kit de reparacin de carburador kit de reconstruccin del carburador GT80 GT80. **Pls ignore the ebay estimated date for delivery, it always shows a longer time frame. No.

14X---2.50mm--10.0mm------------14X---2.50mm--21.00mm

32 different sizes included metric sizes. I will have to find a pdf to something converter so I can upload the whole article to this site. document.getElementById("copyright_year").innerHTML = new Date().getFullYear(); Welcome to your blog! Think, if the crankcase has a breather hose or vent, which it does, you cannot have an air leak from the crankcase, only from the crank seals. I got away from it and now my son is ten and am getting back into it with him. Includes 4 Feet of 1/4" fuel line and an inline fuel valve with 1/4" inlet and outlet. 10X---3.50mm--18.00mm----------10X---3.50mm--33.00mm I am working on a fix. This site is not affiliated with Yamaha Motor Corporation. We're shipping from Asia Pacific-Taiwan, please be aware before placing any bid. Adjustable Width: 16-78mm and Adjustable Height 0-40mm. It looks a lot like the mikuni 18, maybe that's what it really is. If so, you should get the same numbers on both plug holes. I have looked for specs and all I can find is stuff similar to my bike (the only thing I can see is compression ratio 6.8:1). Was helpful. This page was last edited on 23 November 2019, at 20:06. A blog is a great place to share details on your products, business and whate Carb Synchronizer I just bought a GT 80. So it looks like im going to replace the top end. (1.77" - 1.92"), Universal Band Clamp for Carb Holders or Air Boxes I had it running for over 25 minutes at one point. I was trying to figure out where the tiny ball bearing I dropped when I took it apart went. I had a brand-new looking plug a PO had stretched the gap out really far. Which makes it more frustrating. Universal Band Clamp for Carb Holders or Air Boxes High Quality Precision Angle Driver Looks pretty scoured. Fits: Diameters 66-69mm. I doubt that will fix it.

I'm not too keen on buying carbs on ebay, as their apt to have a lot of the same problems; worn float valves and floats that don't float. Im going to retest the compression. When you buy through links on our site, we may earn an affiliate commission.Copyright ThumperTalk, Inc. - All rights reserved.ThumperTalk is a registered trademark. High Quality - Made In Japan The float bowl gasket I think. (1.69"-1.93") Diameters, Band Clamp for Air Filters, Airbox to Carb Joints, Custom Manifolds to Filter Joints and all purpose uses except carb holders. It goes over how fuel systems work and are tuned to suit all engine conditions. After we received the returned item, if the item condition is good, we will then make a refund to you. The bike weighed just 130.07 pounds (59.0 Kg). 1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250. If you don't want to do that, at least have a machine shop measure the "ovalness" of the cylinder so you know what you're dealing with. Please compare it to what you need to make sure it is the correct kit for you. Yamaha has taken a very brave st Honda CB 1100 Model is a Standard Motorcycle Manufactured by Honda.

20X---1.78mm--4.47mm------------13X---2.62mm--12.37mm www.treatland.tv/mikuni-vm-18mm-p/mikunim-vm-round-slide.htm. Any help would be greatly appreciated. Its really simple. Easy fix, its air air cooled mini, couple nuts and the entire cylinder is off. 10X---3.53mm--23.39mm----------10X---3.53mm--36.10mm In the meantime, the forum should function, but you wont be able to attach images. I had an SWM 320 that would run fine and then wouldn't start it was usually the points. How are you doing the test? The products on this site are after market (not OEM) replacement parts and accessories only. Fits: 73-79mm. I'm in process of measuring to see if mikuni 18 will fit. Right?? Please check with customs office of your country to determine what these additional costs will be prior to bidding or buying. Note: This picture is of the Actual kit you will get. Includes 4 easy to read gauges, Mountable bracket, 180mm extensions - 5mm threads, 65mm extensions - 5mm threads,Necessary hoses, Dampening valves (included to help control needle jump) and instructions. I cleaned the carb last night and then went this morning to do a little more work on it. So my most recent project that I am working on is a 1974 Yamaha GT80A. A 47.0mm bore x 42.0mm stroke result in a displacement of just 72.0 cubic centimeters. Hoses & Threaded Adaptor Set Included. It is an iron bore and may have rusted. By continuing to browse our site you agree to our use of data and cookies. June 8, 2011 in Vintage Dirt Bikes. This Motorcycle Has been in production since 2010 To the Present. 20X---1.78mm--9.25mm------------13X---2.62mm--18.72mm - Makotosun.

Adjusts with a screwdriver. Also the vent lines. The standard method is to screw in the tester, open the throttle the whole way and kick it until the needle stops moving. does it push start easily? 18X---2.00mm--5.00mm------------13X---2.50mm--19.00mm We offer good quality products, but it would definitely take longer to arrive at your door. You would be amazed how many times that fixes things LOL (It happens to all of us. OEM Ref # 367-14390-14, Universal Gear Clamp for Carb Holders or Air Boxes. Also, there is not air cleaner on it because it was missing that piece. I decided to be proactive and look into the top end. Is this right? On the side I got around 105-110 psi. 20X---1.78mm--3.69mm------------13X---2.62mm--10.77mm Band Clamp for Air Filters, Airbox to Carb Joints, Custom Manifolds to Filter Joints and all purpose uses except carb holders. Copyright of Damineding Taiwan. Step by step pictures show precisely how to perform many tasks. Yes, the pressure of a bad cylinder is still enough to push your finger. Any ideas on how to do this? Is there a possibility that is why it is not starting. 10X---3.50mm--28.00mm----------10X---3.50mm--47.00mm Fits: Diameters 41-44mm. Fits: Diameters 58-60mm.

I've used the chart and it seems to work well. Stopping was achieved via expanding brake (drum brake) in the front and a expanding brake (drum brake) in the rear. This techbook covers all carburetor types, along with fuel injection, from the basic theory to practical tuning. Used to measure the float height between the float and carburetor gasket surface. That leak from the sprocket just means the counter shaft oil seal needs replacing.

**Due to the Disease, there might be a small delay in delivery.

(not recommended as you should file them but It will work for awhile), Or make sure the gas is turned on, and the kill switch is turned off.

It appears to just be really hard to start.

1974 GT80 missing carburetorneed help! check your compression. My dad used to buy junk, fix em up and sell them. Not much information besides that on setting the two screws. 30 different sizes included in mm's.

20X---1.50mm--3.00mm------------13X---2.50mm--11.00mm I have been wondering if maybe a YZ80 carburetor may work on the GT80 engine, but I am not sure. Any help is much appreciated! On the low side I got 90psi. Fluid Hose Clamp, all steel construction with adjustable locking collar. This combo design allows unlocking of the locknut, adjustments to the balancing screw and re-locking the lock nut in one step. So I finally got it started and warmed it up for about 5-10 by lightly blipping the throttle. It came with a 2.50-15 front tire and a 2.75-14 rear tire. For use with Honda, Kawasaki, and Suzuki models (which typically have 5mm connections) that use sets of 2, 3 or 4 cylinders. Throttle stop screw: Turn throttle stop screw in or out to achieve smooth engine operation at (idling speed: 1250-1400 rpm. Fits: Diameters 40-60mm (With a width of 9mm), Universal Band Clamp for Carb Holders or Air Boxes QTY---Width----Inside Dia.---------QTY---Width-----Inside Dia. The jaw digs into the tube to grip it, squeeze and the hose is easily pushed off by the jaw. 13X---2.50mm--22.00mm----------10X---3.50mm--31.00mm 10X---3.50mm--26.50mm----------10X---3.50mm--44.00mm Fits: Diameters 69-72mm. I just bought a 1973 G. Its either an 80 or 100. Carburetor Cleaning Tool Set. Item(s) will be shipped by Air Parcelwithin 1 business days after full payment received. Our customer service representative will guide you the returning procedure for replacement. The word "Yamaha", the tuning fork logo or other trademarked logos and all other product names are, or may be, trademarks or registered trademarks of Yamaha Motor Corporation. I've got an old yamaha gt mx 80 with a tk carb, an oddball. It is a solid bike, but unfortunately its carburetor is missing along with the rubber hose which connects to the carburetor and airbox. Clearly presented text is fully illustrated with photographs and diagrams. h1, h2, h3, h4, h5, h6, p, blockquote, pre, There are other charts floating around the Web that aren't even close. We do not sell or release any of your private or personal information except in response to a valid court order. Please Log in or Create an account to join the conversation. Fits: 91-97mm (3.58"-3.82") Diameters, Band Clamp for Air Filters, Airbox to Carb Joints, Custom Manifolds to Filter Joints and all purpose uses except carb holders. Most Of The Bike Love Honda CMX 500 RebelReview Honda CMX 500 Rebel Model is a Cruiser Class Motorcycle Manufactured by Honda. Do I need to get the cylinder honed? 9mm Wide.

Completely or partially closes flexible brake, fuel, and vacuum fluid lines. 1. Float height: 22.0 mm +- 2.5mm (.87 +- 0.1 in) To correct the float height, remove the float assembly and slightly bend the tang as required. Come to think of it, I have. Pull the barrel, it needs rings at a minimum and a bore, piston and rings worse case. Any thoughts? It worked like a dream. 3. What about adapting intake / reed boot to newer carb, remove factory air box, and running k&n right off carb? I have one on the bottom/floats and one on the side. This was a lucky find. Featured Section- gas flow, fuel and combustion chemistry, carb construction and overhaul, fuel injection theory, adjustments and settings, fuel pumps, sensors and catalytic converters, intake and exhaust systems, variable geometry, turbochargers and superchargers, special fuels, fault finding, testing and tuning and a glossary of technical terms. ). Buyer is responsible for import duty/ tax if applicable. Working as fast s we can to fix. Both Floats must be the same height. QTY---Width----Inside Dia.---------QTY---Width-----Inside Dia. For easy removal of 5/32" to 1/2" hoses. Fits: 121-127mm. Includes 12 steel wire ends and a small file designed for cleaning nozzles and the tiny holes found in carburetor passages and jets. Pilot air screw: Turn air adjusting screw until it lightly seats, then back it out 1-1/2 turns. Note: The pilot air and throttle stop screws are separate adjustments but they must be adjusted at the same time to achieve optimum operating condition at engine idle speeds. My 79 RM100 is the same way. Makes synching your carburetor setup fast and easy! No chips or cracks. (2.87"-3.11") Diameters, Band Clamp for Air Filters, Airbox to Carb Joints, Custom Manifold to Filter Joints and all purpose uses except carb holders. You need to be a member in order to leave a comment. In my mind one of three things is going on. You will receive a reminder when the product becomes available When I got it home I was having trouble starting it. Yamaha has taken a very brave step as a Ja Yamaha YB 100 Review Overview : Yamaha YB 100 Is One Of The Most Performance-oriented bikes in The World.Yamaha has taken a very brave st Honda CD200 Roadmaster Bike Is Most Popular Bike in Developing Countries like Bangladesh, Pakistan & South Africa. Did you try starting fluid?

23X---1.50mm--7.00mm------------14X---2.50mm--13.00mm Carburetor Float Level Gauge. Here is the update. Submit, Float Needle & Seat We reserve the right to refuse refunds or exchanges on items that are returned in unsatisfactory condition.

Fits: 79-85mm. 20X---1.78mm--5.29mm------------13X---2.62mm--13.95mm 10X---3.53mm--29.75mm------------7X---5.34mm--43.82mm, 419pc O-Rings Kit with Plastic Case. Does anyone have a ballpark idea of what the compressions should be? Fuel capacity 2 Litres. This can be done with the engine off. I thought the chart was going to check out ok. For detailed information about the categories of personal information we collect and the purposes for which information may be used and which Data Processing Services may have access to this information please click on 'Privacy Policy". We have no relationship to the listed companies. We ship to ebay or paypal confirmed address only. Any recommendations on where I should go next to get the compression higher? Really appreciate it. 382pc O-Rings Kit with Plastic Case. If I am not mistaken, these GT80's had 18mm Teikei carburetors on them from the factory.

Carburetor and throttle body synchronizer kit for bikes with 2 Carbs.

Includes 2 easy to read gauges, Mountable bracket, 180mm extensions - 5mm threads, 65mm extensions - 5mm threads,Necessary hoses, Dampening valves (included to help control needle jump) and instructions. Took me a while to figure that one out. Fits: Diameters 53-56mm. I am at a loss. The GT80 B was fitted with a 1.3 Gallon (4.92 Liters) fuel tank. Anything and everything about Vintage Dirt Bikes! Please contact us through eBay anytime and we will reply you within 24 hours(weekend excluded).

(3.35"-3.58") Diameters, Band Clamp for Air Filters, Airbox to Carb Joints, Custom Manifolds to Filter Joints and all purpose uses except carb holders. Usually we will mark the price less than aboveon the invoice and sent it as a "gift" or "Commercial sample" . The overbore isn't excessive, I don't think that caused your problem, however, if it was not done correctly, it could.

I actually rode it around the yard a bit.

10X---3.53mm--21.82mm----------10X---3.53mm--34.52mm Cleaning wire sizes range from 0.45mm to 1.5mm. I feel like while the compression should be better, it should be enough to at least start. small, strike, strong, All payment should be received within 3 days after you purchasing the item. I picked up a service manual for my 1979 GT80 and this is what is says on doing the adjustments. The names Honda, Yamaha, Kawasaki, Suzuki and any other trade names or symbols belonging to each respective corporation are stated for reference purposes only. instantly by Subscribing to us. Did another compression test and managed to get 115 psi. Due to the extraordinary growth of the membership and resources, we are once again bumping up against hosting limits. These come up occasionally on Ebay which is the only source I am aware of. The bike has a 4-speed transmission. 23X---1.50mm--13.0mm------------14X---2.50mm--16.00mm https://www.cyclechaos.com/w/index.php?title=Yamaha_GT80&oldid=191212. 20X---1.78mm--2.90mm------------13X---2.62mm--9.19mm

All made in Taiwan. Too little or too much fuel in the float bowl will negatively affect tuning results.

ok. got the compression tester. I have been on the hunt for an aftermarket carburetor, but have had no luck finding one. In my opinion, the pros of using the original carbs are that everything fits and the jetting is already pretty close; the cons are parts availabilty, wear issues, and low tech (although the carbs I've worked on perform very well). Fits: 67-73mm. Power was moderated via the wet plate. Could someone tell me exactly what the screws do and maybe suggest some settings? You will receive a reminder when the product becomes available. This bike was in dumpster-ready condition when my friend got it, but now it actually runs OK, considering it's probably about to puke a ring.

Hose Remover Pliers. Does anyone have any ideas on where I can find a compatible carburetor for my GT80? We had all sorts of bikes when I was a kid in the 70s and 80s. Before you leave us a negative feedback, pls give us a chance to reslove the problem. Are their adapters to upgrade carbs? 23X---1.50mm--10.0mm------------13X---2.50mm--14.00mm 10X---3.53mm--20.22mm----------10X---3.53mm--32.92mm Fits: Diameters 78-80mm.