13 Best Automotive Replacement Carburetors

List Updated November 2020

Bestselling Automotive Replacement Carburetors in 2020


QAZAKY Carburetor for Gas Club Car Golf Cart DS 1984-1991 341cc Kawasaki Side Valve Engines Carb 1014541 1012508

QAZAKY Carburetor for Gas Club Car Golf Cart DS 1984-1991 341cc Kawasaki Side Valve Engines Carb 1014541 1012508
BESTSELLER NO. 1 in 2020
  • 100% brand new and high-quality item.
  • Free shipping!
  • Match original equipment exactly for a perfect fit, easy to install.
  • Great Customer Service!
  • All of the original "QAZAKY" parts are backed by 90 days' carefree return, and lifetime warranty against manufacturer defect. Please note that the products are only offered by the brand: "QAZAKY" store, Other sales people is not reliable.

MaxPower 13566 Carburetor Replaces Tecumseh 640350, 640303, 640271

MaxPower 13566 Carburetor Replaces Tecumseh 640350, 640303, 640271
BESTSELLER NO. 2 in 2020
  • For Tecumseh engines
  • Replaces Tecumseh #640350, 640303, 640271
  • Fits models LV195EA, LV195XA

Partol Carburetor Carb for 1966-1973 Dodge Plymouth Truck with 273-318 Engine - Manual Choke

Partol Carburetor Carb for 1966-1973 Dodge Plymouth Truck with 273-318 Engine - Manual Choke
BESTSELLER NO. 3 in 2020
  • To ensure correct purchase, please compare your carburetor against pictures before you purchase. Fit Plymouth models and Dodge Truck 1966 1967 1968 1969 1970 1971 1972 1973 with 273-318 engine
  • High performance manual choke apply to Dodge 273-318 engine, directly replace the old/broken carb
  • High performance Carter style carburetor replacement, add 5-10% horsepower and maintain near stock fuel mileage
  • To ensure the carb work normally, please clean the automobile oil circuit and air filter before you install the carburetor
  • Package Included: 1x carburetor for Dodge Plymouth. Flange gaskets and air gasket included

QAZAKY Carburetor for Club Car Golf Cart DS & Precedent Turf Carryall FE290 Engines 1998-UP Carb 101805601

QAZAKY Carburetor for Club Car Golf Cart DS & Precedent Turf Carryall FE290 Engines 1998-UP Carb 101805601
BESTSELLER NO. 4 in 2020
  • 100% brand new and high-quality item.
  • Free shipping!
  • Match original equipment exactly for a perfect fit, easy to install.
  • Great Customer Service!
  • All of the original "QAZAKY" parts are backed by 90 days' carefree return, and lifetime warranty against manufacturer defect. Please note that the products are only offered by the brand: "QAZAKY" store, Other sales people is not reliable.

796227 Carburetor Carb Replacement with Gasket Kit for Briggs & Stratton V-Twin Models 407777 40N877 40R877 445677 445877 44L777 44M777 44P777 44R677# 796227

796227 Carburetor Carb Replacement with Gasket Kit for Briggs & Stratton V-Twin Models 407777 40N877 40R877 445677 445877 44L777 44M777 44P777 44R677# 796227
BESTSELLER NO. 5 in 2020

QAZAKY Carburetor for Club Car Golf Cart DS Precedent Turf Carryall FE350 Engines 1998-UP Carb

QAZAKY Carburetor for Club Car Golf Cart DS Precedent Turf Carryall FE350 Engines 1998-UP Carb
BESTSELLER NO. 6 in 2020
  • 100% brand new and high-quality item.
  • Free shipping!
  • Match original equipment exactly for a perfect fit, easy to install.
  • Great Customer Service!
  • All of the original "QAZAKY" parts are backed by 90 days' carefree return, and lifetime warranty against manufacturer defect. Please note that the products are only offered by the brand: "QAZAKY" store, Other sales people is not reliable.

Car Carburetor by Partol,Zinc Alloy Car Carburetor for Volkswagen(VW) 30/31 PICT-3 Engine 113129029A(Automatic Choke)

Car Carburetor by Partol,Zinc Alloy Car Carburetor for Volkswagen(VW) 30/31 PICT-3 Engine 113129029A(Automatic Choke)
BESTSELLER NO. 7 in 2020

Replacement Carburetor for Tecumseh 632615 632208 632589 H30 H35

Replacement Carburetor for Tecumseh 632615 632208 632589 H30 H35
BESTSELLER NO. 8 in 2020

KOHLER 25 757 02-S Engine Carburetor Kit K301 - K582, KT Series And M12 - M20

KOHLER 25 757 02-S Engine Carburetor Kit K301 - K582, KT Series And M12 - M20
BESTSELLER NO. 9 in 2020
  • KOHLER Genuine Part
  • Fits Models: KOHLER K301-K582, KT series and M12-M20.
  • Not compatible with greater than 10% ethanol fuel
  • Warranty - 90 days against defects in materials or workmanship

Hex Autoparts Carb Carburetor for Zama Echo C1U-K52 SRM2100 SRM2110 GT2000 GT2100 Series

Hex Autoparts Carb Carburetor for Zama Echo C1U-K52 SRM2100 SRM2110 GT2000 GT2100 Series
BESTSELLER NO. 10 in 2020
  • Fits: ECHO SRM2100, GT2000, GT2100 SERIES Trimmers
  • Brand new aftermarket product not remanufactured
  • Built to strict quality control standards
  • ZAMA #C1U-K52
  • Echo Part #:12520013312,12520013313

for Yamaha Raptor 80 Carburetor ATV Quad Carb Carby 2002-2008 Carbon Engine Car Replacement Kit

for Yamaha Raptor 80 Carburetor ATV Quad Carb Carby 2002-2008 Carbon Engine Car Replacement Kit
BESTSELLER NO. 11 in 2020
  • The car carburetor is compatible with Yamaha 2002-2008, multiple choice for your various needs, high performance out of you expectation;
  • Carburetor for Yamaha Raptor 80 meets or exceeds OEM standards, each product goes through maximum testing which guarantees it won't disappoint you;
  • Powerful operation for higher efficiency, the ZZP-FJIJF34 for Yamaha Raptor 80 2002-2008 carburetor can reduce the consumption of fuel. It's easy to generate and durable;
  • Fast starting and stable operation, you will find the for Yamaha carburetor seldom or never clog the holes which means it can operate around the clock smoothly. Durable and high performance;
  • We provides best customer service and most patient guide. If you have any trouble, you can get in-time help from us as soon as possible. Enjoy purchasing!

Mr. Gasket 54C Carburetor Base Gasket

Mr. Gasket 54C Carburetor Base Gasket
BESTSELLER NO. 12 in 2020
  • Has a square bore carburetor flange
  • It is 0.063" thick
  • Made from nitrile rubber composite
  • Has a 4-hole gasket opening style
  • Provides superior torque retention, crush resistance, and sheer strength

Replacement Carburetor for Tecumseh number 640058 640058A

Replacement Carburetor for Tecumseh number 640058 640058A
BESTSELLER NO. 13 in 2020
  • Brand New!
  • Great Customer Service
  • Fast Shipping!
  • 1 Year Warranty!
  • High Quality Aftermarket Parts!

Carburetor Tuning Basics

Carburetion for any automotive application is fairly complex, getting at least a basic understanding of how it works can go a long way.

Jetting Basics

There are 4 main circuits used to optimize gasoline delivery and therefore engine performance. You might adjust the air screw, adjust the jet needle's clip position or exchanging the pilot (slow) jet, main jet, throttle valve (slide) or jet needle for one of an appropriate size to achieve the correct stoic metric ratio. The stoic metric ratio for 4 stroke engines is 14.7:1 (14.7 parts air, to 1 part fuel) although some people believe going rich or lean at certain points can aid performance. Ie. going as rich as 12:1 can be beneficial to acceleration, and going down to 15/16:1 can aid fuel economy at idle revs. This is all dependent on the engine, even 2 identical engines could require different settings to achieve there relative best performance

The different jets in a carburetor are targeted at specific throttle openings. But none act idependently, this helps to achieve a smooth power delivery, but plays havoc on the tuner in some instances. See below for a list what the jets are targeted at.

The air screw is most effective between idle through 1/8 throttle. The pilot (slow) jet is most effective between 1/8 through 1/4 throttle. The slide valve is most effective between 1/8 through 1/2 throttle The jet needle is most effective between 1/4 through 3/4 throttle. The main jet is most effective between 3/4 through wide-open throttle. Pilot Jet/Air Screw

The pilot jet, or slow circuit, can be adjusted by either swapping the pilot jet for a smaller or larger jet, or by adjusting the air screw, the air screw controls the flow of air into the circuit. Usually turning the air screw in (clockwise) will richen the mixture (reduce the amount of air) and vice versa.

The air screw is perfect for fine tuning the pilot circuit. The pilot jet determines the flow of gasoline entering the cylinder at idle/low revs. Pilot jets have a precisely machined hole running through their center which gasoline passes through. With all jets we need to remember the bigger numbered jets richen the mixture, while reducing the number leans out the mixture.

Slide/Throttle Valve

The slide/throttle valve has the most effect between 1/8 and 1/4 throttle and does affect the mixture up until 1/2 throttle, but on a lesser scale. The throttle valve can be exchanged for one with a bigger or smaller cutaway. The larger the cutaway the more air flows, the smaller the cutaway the less airflow.

The jet needle

Has the greatest effect between 1/4 and 3/4 throttle. It's attached directly to the throttle valve. As the throttle is rolled open or closed the jet needle moves through the needle jet's bore exposing different sections of the jet needle's profile to the needle jet's inner bore. There are many different jet needles available all of which are specifically designed to a certain application. generally replacing the needle is not necessary. Because most needles have a number of clip settings allowing you to adjust how far in or out the needle is in the needle jet. Replacement is usually used when massive adjustments to airflow have been made. I'll talk about jet needles in greater detail in the Tuning section.

The Main Jet

Regulates the flow of gasoline from ¾ to Wide Open Throttle. Again this jet has a precise hole in its center allowing for specific metering of gasoline. Increasing the size of the main jet ( size of the hole ) richens the circuit by supplying more gasoline, and reducing leans the mixture out at these throttle settings.

Tuning

Always before tuning your carburetor you must insure there is a fresh air filter, new tank of gas, and i also recommend new spark plugs are installed, this should insure your are jetting you carbs for the correct air/fuel requirements. Old airfilters could cause you to tune your carb slightly lean (because of less airflow) so when you did replace the air filter your jetting would be off. You should also ensure there are no leaks in the system, and everything else is running sound. engine problems could lead you to believe there is a jetting problem and tuning them in would just mask your problem

When making alterations to your jetting test the result one by one. It's very helpful to keep a log book for your carburetor where you can log changes to the jetting, the temperature, altitude etc. This way you if you make a wrong move you can easily correct it.

The easiest method of verifying your results is by means of a plug chop. It is great for beginners and a pros alike (although pros tend to rely on how the jetting "feels", that's a result of being a pro) a plug chop is relatively simple to do, but requires a few spare spark plugs. you would make your alteration, then install new spark plugs. get you engine up to temperature. Then you are ready. As already mentioned jetting a about throttle position not speed.

i like to set my throttle at the place i am tuning (ie wide open for main jet, 1/2 way for needle setting, etc) use 4-5 gear and ride/drive up a slight incline to put load on the engine. stay at this throttle setting for a at least 15 seconds (if you thinks the settings are lean do the chop after 15 seconds as to reduce the risk on your engine, and then in one move.

Apply the clutch, release throttle, stop ignition, coast to a stop.

This is a plug chop.

Once on the side of the road you will need to remove the spark plug(s) and check the colour around the porcalin area of the plug.

Good jetting will give you a milk chocolate colour reading on the spark plug.

Light brown will be to lean.

White is BAD increase fuel delivery or engine damage is likley.

Dark brown is too rich.

Dark brown deposits is WAY TOO RICH.

And black suit is oil fouling (engine problems)

When you begin jetting i would advise you use this method for all throttle settings. As you become more experienced you wont need to, you will also "feel" the changes. I still do plug chops, only for WOT (wide open throttle) as this is the first jet that must be tuned (all the others are reliant on the main jet setting) Even now getting a nice milk chocolate coloured spark plugs for the main jet give you great satisfaction and fills you with confidence to tackle the other settings.

Setting the main jet

This a the most critical stage of your tuning, all other jetting should be done after the main jet to ensure linear delivery. to select you main jet you should try at least 3 different jets ball park jet, 1 higher and one lower, after you have a done a plug chop to get in the ballpark you should do a few speed runs with the different jets, choosing your main should usually be a case of top speed, with the jest you have selected find the one that gives you the best top speed and "feels" like its giving you the best power. This will be your main jet, although just to note, in climates that can change considerably select the jet number above your top speed, to allow for temperature change if jetting is done in the hotter months, if done in the colder months select the best top speed jet.

Selecting jet needle clip position

once your main jet is selected you will need to move onto your needle clip position. as a rule of thumb i usually start with the clip in the middle positions, and doing a plug chop can remove the need to test every clip position. (ie, if you are set in the middle clip and the plug comes out lean, you only need check the lower (richer) clip positions and vice versa. Again check the ball park clip position, one above and one below. Check for best transition from 1/2 to 3/4 throttle and quick throttle response. usually bad throttle response is down to a lean condition, and sloppy power delivery is due to rich conditions.

note: doing a plug chop for the needle clip position require you to hold the throttle a 1/2 throttle for longer periods (at least 30 seconds, more if feasible) all other aspects of the plug chop stay the same.

Tuning the pilot circuit, idle to 1/4 throttle

Tuning the idle circuit is probably the easiest jet to tune. This is because it work in conjunction with a air screw. to start get your engine nice an warm. Then with the ignition off turn the air screw in (clockwise) until it seats, not too tight now, remember its brass. now get a note pad out, you'll need it. unscrew the air screw 1/4 turn at a time, trying to start the engine and noting how many turns so far, when it does fire set the idle as low as possible without stalling the engine. now continue to turn the airscrew out 1/4 turn at a time noting how many turns out you are. your idle revs should increase turn by turn. when they stop increasing as you turn out the air screw stop. check how many turns out you are. if you are more than 1 3/4 turn out install a smaller pilot jet, if you are less than 1 turn out install a bigger pilot jet. repeat procedure until you are within 1-13/4 turns out. You now have the correct pilot jet, and fine tuning will be easy. you will now repeat this procedure again only using 1/8 turns to achieve the best off idle throttle response. test your throttle response on the road and find a setting that is the quickest. plug readings arent important here. there are 2 benefits to this:

1. you get the best throttle response, which is great.
2. you also get the best fuel economy, due to a slightly lean mixture (not dangerous at all)

Once your done, give the engine a good run to check all the parts are working together well. If you approach the tuning process in order you should have no trouble achieving a good linear response.

Some people fear carburetor tuning, they think its black magic, done by mechanic come wizard folk. I hope this clears up a few things.

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