Top 29 How To Convert Carburetor To Fuel Injection Motorcycle Top 13 Best Answers

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A carburetor can be converted to fuel injection on a motorcycle or dirt bike by using an EFI (electric fuel injection) kit. The tricky part is finding the right EFI kit for your dirt bike because converting the carburetor is quite simple.A newly remanufactured 725 cfm Quadrajet carburetor will set you back $330. A 750 cfm Holley Street Demon carburetor will cost you $347. Finally, depending on the fuel-injection kit you choose, you can expect to dish out anywhere from $1,000 or more.So, which is better? Fuel injection has an upper hand when it comes to performance, fuel efficiency, and better throttle response. While the FI system may cost you more, the long-term aspects of the FI system are better than a carburetor.

How to Convert a Carbed Motorcycle to EFI
  1. Remove the rider’s seat. …
  2. Disconnect the throttle linkages and the fuel lines at the carburetors. …
  3. Locate the ignition circuit wire connector in the main wiring harness of the motorcycle. …
  4. Refer to instructions in the EFI kit.

Can you convert a carbureted bike to fuel injection?

A carburetor can be converted to fuel injection on a motorcycle or dirt bike by using an EFI (electric fuel injection) kit. The tricky part is finding the right EFI kit for your dirt bike because converting the carburetor is quite simple.

How much does it cost to go from carburetor to fuel injection?

A newly remanufactured 725 cfm Quadrajet carburetor will set you back $330. A 750 cfm Holley Street Demon carburetor will cost you $347. Finally, depending on the fuel-injection kit you choose, you can expect to dish out anywhere from $1,000 or more.

Which is better carburetor or fuel injection motorcycle?

So, which is better? Fuel injection has an upper hand when it comes to performance, fuel efficiency, and better throttle response. While the FI system may cost you more, the long-term aspects of the FI system are better than a carburetor.

Does fuel injection increase horsepower?

The technical answer is yes; fuel injectors can add 10 extra horsepower at peak. However, for some car owners, that minimal difference does not offset the increased cost and complexity of switching to fuel injectors or upgrading the existing stock fuel injectors.

What is more reliable carburetor or fuel injection?

In general, a good fuel injection system is more accurate than a carburetor. This system delivers exactly the amount of fuel needed, no matter the conditions, meaning better reliability and fuel economy. A carburetor cannot adjust for the fuel intake ratio, so is less accurate.

Can you convert carburetor to TBI?

The conversion is very straightforward. You swap intake manifolds and distributors, install all sensors, mount the fuel pump and fuel lines, route and connect the wiring harness and computer, and turn the key. Still, there are a few caveats… In stock configuration, GM locates the fuel pump inside the tank.

What is EFI carburetor?

EFI is now the primary fuel delivery system that used in automobile engines that replaced carburetors during 1980’s and 1990’s. EFI (Electronic fuel injection) is a system that injects the fuel into the internal combustion engine.

How can I make my carbureted motorcycle faster?

If you’re looking to get more power out of your bike, here’s what we suggest to get started:
  1. Increase Your Bike’s Air Intake. …
  2. Upgrade Your Exhaust System. …
  3. Plug-In an Aftermarket Tuner or Reflash the ECU. …
  4. Install a New Jet Kit for the Carburetor. …
  5. Modify Your Ignition. …
  6. Order Custom Parts and Accessories.

Why are motorcycles still carbureted?

While fuel injection (FI) has become the norm for engine design for quite some time, carbureted engines still have a place in the motoring world. Carburetors are reliable and simple in design. This makes them easier to tinker with and fix. They can also still keep up in terms of performance.

Are carbureted motorcycles good?

Old bikers would also stick to their carbureted option, as they are simpler to maintain and repair. However, while fuel injection generally increases the cost of the bike, it also provides much better cold starting, better throttle response, better fuel efficiency, less maintenance.

What does EFI stand for on a motorcycle?

Meaning. Electronic Fuel Injection (EFI) This system is monitored by an ECU (Electronic Control Unit), which controls with a high-pressure fuel delivery system to provide optimum power and fuel efficiency.


Carburetor vs Fuel Injection – Why Motorcycle Riders Should Think Again
Carburetor vs Fuel Injection – Why Motorcycle Riders Should Think Again


How to Convert a Carbed Motorcycle to EFI | It Still Runs

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  • Most searched keywords: Whether you are looking for How to Convert a Carbed Motorcycle to EFI | It Still Runs Updating Electronic fuel injection (EFI) consists of throttle bodies that take the place of the carburetors, the ECU computer and special sensors. The ECU computer makes fuel calculations based on inputs from sensors on the engine and at the throttle bodies. In most cases, a high-output fuel pump is needed to meet the demands …
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How to Convert a Carbed Motorcycle to EFI | It Still Runs
How to Convert a Carbed Motorcycle to EFI | It Still Runs

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How to Convert Carburetor to Fuel Injection: Beginner Guide – ATV Outdoors

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  • Most searched keywords: Whether you are looking for How to Convert Carburetor to Fuel Injection: Beginner Guide – ATV Outdoors Updating Want to convert carburetor to fuel injection on your dirt bike? You will need to learn how to install an EFI (electrical fuel kit). Read now!
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How to Convert Carburetor to Fuel Injection on a Dirt Bike

Is Fuel Injection Better than Carburetor Motorcycle

How Much Does It Cost to Change a Carburetor to Fuel Injection

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How to Convert Carburetor to Fuel Injection: Beginner Guide – ATV Outdoors
How to Convert Carburetor to Fuel Injection: Beginner Guide – ATV Outdoors

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Stacey David’s GearZ Converting your Carburetor to Fuel Injection – YouTube

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  • Most searched keywords: Whether you are looking for Stacey David’s GearZ Converting your Carburetor to Fuel Injection – YouTube Updating Stacey shows you how to convert your carburetor to fuel injection with Holley’s OEM Style Fuel Module for putting fuel injection on a classic muscle car.staceydavid, GearZ, Hot Rods, Trucks, mavtv, velocity, revntv, Holley
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Stacey David's GearZ Converting your Carburetor to Fuel Injection - YouTube
Stacey David’s GearZ Converting your Carburetor to Fuel Injection – YouTube

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Difference Between Fuel Injection and Carburetor in Bikes

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  • Most searched keywords: Whether you are looking for Difference Between Fuel Injection and Carburetor in Bikes Updating All about difference between fuel injection and carburetor in bikes. Check ✓ Carburetor Engine vs Fuel Injection ✓ How Does It Work ✓ Advantages.
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Difference Between Carburetor and Fuel Injection

Carburetor Engine How Does It Work

Advantages of Carburetor

Disadvantages of Carburetor

Fuel Injection (FI) How Does It Work

Advantages of Fuel Injection

Disadvantages of Fuel Injection

Carburetor Vs Fuel Injection Engine in Bike Which is Better

FAQs About Carburetor and Fuel Injection System

Topics

Difference Between Fuel Injection and Carburetor in Bikes
Difference Between Fuel Injection and Carburetor in Bikes

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How to Convert Carburetor to Fuel Injection: Beginner Guide – ATV Outdoors

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  • Summary of article content: Articles about How to Convert Carburetor to Fuel Injection: Beginner Guide – ATV Outdoors A carburetor can be converted to fuel injection on a motorcycle or dirt bike by using an EFI (electric fuel injection) kit. The tricky part is finding the right … …
  • Most searched keywords: Whether you are looking for How to Convert Carburetor to Fuel Injection: Beginner Guide – ATV Outdoors A carburetor can be converted to fuel injection on a motorcycle or dirt bike by using an EFI (electric fuel injection) kit. The tricky part is finding the right … Want to convert carburetor to fuel injection on your dirt bike? You will need to learn how to install an EFI (electrical fuel kit). Read now!
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How to Convert Carburetor to Fuel Injection on a Dirt Bike

Is Fuel Injection Better than Carburetor Motorcycle

How Much Does It Cost to Change a Carburetor to Fuel Injection

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How to Convert Carburetor to Fuel Injection: Beginner Guide – ATV Outdoors
How to Convert Carburetor to Fuel Injection: Beginner Guide – ATV Outdoors

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How To Convert Carburetors To Fuel Injection On Motorcycles? – My Riding Experience

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  • Summary of article content: Articles about How To Convert Carburetors To Fuel Injection On Motorcycles? – My Riding Experience 8 DIY Steps To Convert Carburetor To Fuel Injection On A Motorcycle: · Step-1: Install The EFI Kit · Step-2: Disconnect The Entire Fuel System · Step-4: Install … …
  • Most searched keywords: Whether you are looking for How To Convert Carburetors To Fuel Injection On Motorcycles? – My Riding Experience 8 DIY Steps To Convert Carburetor To Fuel Injection On A Motorcycle: · Step-1: Install The EFI Kit · Step-2: Disconnect The Entire Fuel System · Step-4: Install … While carburetors and traditional fuel injectors have long been around, an increasing number of riders are opting to convert their motorcycles to fuel injection owing…
  • Table of Contents:

8 DIY Steps To Convert Carburetor To Fuel Injection On A Motorcycle

Step-1 Install The EFI Kit

Step-2 Disconnect The Entire Fuel System

Step-3 Fix The Wiring Unit

Step-4 Install The Oxygen Sensor

Step-5 Take Access Of The ECU

Step-6 Attach The Sensor Cables

Step-7 Install A New Pump

Step-8 Check The Functioning

FAQs Regarding How To Convert Carburetor To Fuel Injection On A Motorcycle

What Is A Motorcycle EFI

Can You Convert A Carbureted Motorcycle To A Fuel Injected Motorcycle

How Do You Convert Your Carburetor To Fuel Injection

Is A Carburetor Better Than Fuel Injection

What Is The Difference Between EFI And Carburetor

How Much Does It Cost To Go From Carburetor To Fuel Injection

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How To Convert Carburetors To Fuel Injection On Motorcycles? - My Riding Experience
How To Convert Carburetors To Fuel Injection On Motorcycles? – My Riding Experience

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Error 403 (Forbidden)

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How To Convert A Carburetor To Fuel Injection On A Dirt Bike – Ultimate Off-Roading

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  • Summary of article content: Articles about How To Convert A Carburetor To Fuel Injection On A Dirt Bike – Ultimate Off-Roading The best way to convert a carburetor to fuel injection on a dirt bike is to use an electronic Fuel Injection or EFI kit. Once the right conversion kit is … …
  • Most searched keywords: Whether you are looking for How To Convert A Carburetor To Fuel Injection On A Dirt Bike – Ultimate Off-Roading The best way to convert a carburetor to fuel injection on a dirt bike is to use an electronic Fuel Injection or EFI kit. Once the right conversion kit is … Carburetors and fuel injectors are both systems of getting the fuel-air mixture to the engine cylinders for combustion. The carburetor has been around for many…
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How To Do The Conversion From Carburetor to Fuel Injection

What Are The Differences Between Fuel Injection And A Carburetor

Why You May Not Want To Convert To Fuel Injection!

Conclusion

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How To Convert A Carburetor To Fuel Injection On A Dirt Bike – Ultimate Off-Roading
How To Convert A Carburetor To Fuel Injection On A Dirt Bike – Ultimate Off-Roading

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How to Convert a Carbed Motorcycle to EFI

How to Convert a Carbed Motorcycle to EFI by William Machin

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Electronic fuel injection (EFI) consists of throttle bodies that take the place of the carburetors, the ECU computer and special sensors. The ECU computer makes fuel calculations based on inputs from sensors on the engine and at the throttle bodies. In most cases, a high-output fuel pump is needed to meet the demands of the system. Installation takes mechanical expertise, knowledge of your motorcycle and experience interpreting electrical wiring diagrams. However, it is possible to obtain an EFI kit and fuel pump from a motorcycle accessory outlet and convert a carbed motorcycle to EFI. The instructions below provide general guidelines for converting to EFI, but the specifics will vary slightly based on the year, make and model of the motorcycle.

How to Convert Carburetor to Fuel Injection: Beginner Guide – ATV Outdoors

Even though carburetors and classic fuel injectors have been around for years, more and more people are choosing to convert their dirt bikes to EFI (electric fuel injection) because of the benefits that they offer. If you want to learn the best way to convert a carburetor to fuel injection on a motorcycle, you have arrived at the right place.

A carburetor can be converted to fuel injection on a motorcycle or dirt bike by using an EFI (electric fuel injection) kit. The tricky part is finding the right EFI kit for your dirt bike because converting the carburetor is quite simple. You simply have to get access to the carburetor and connect the EFI to power alongside the sensors and the fuel pump.

If you are unsure how to convert the carburetor on your dirt bike to fuel injection, you should keep reading because I will present a step-by-step guide. Make sure to stick around for the end where I will answer the internet’s most asked questions on this topic.

How to Convert Carburetor to Fuel Injection on a Dirt Bike

Whether you want to convert the carburetor to fuel injection to get better mileage or more horsepower, an EFI kit is always required. The EFI kit contains the throttle bodies that will replace the carburetor, the sensors, and the ECU computer. Those unfamiliar with these parts should know that the ECU computer is required to make fuel calculations by using the input provided by the sensors.

I need to mention that installing an EFI kit requires mechanical knowledge. If you don’t know your way around a dirt bike or ATV engine, you shouldn’t worry because I will point you in the right direction. Below you can find a step-by-step guide that showcases how to convert a carburetor to fuel injection on a dirt bike. I will also include a YouTube guide because there’s no better way to learn how to do something than to watch a video.

First Step

The first thing you need to do when installing the EFI kit is to remove the rider’s seat. Disconnect the battery cables and turn the fuel petcock off. You also need to disconnect the fuel line from the petcock and remove the gas tank.

Second Step

After getting access behind the rider’s seat and removing all the parts, you need to disconnect the throttle linkages and the fuel lines that are tied to the carburetors. With the fuel lines out of the picture, you can go ahead and remove the carburetors. It’s also necessary to detach the electrical wires from the fuel pump. My advice is to either label them or take a picture with your smartphone so that you know how to place them back.

Want to learn how or when is the right time to replace dirt bike valves? You should check out this article I wrote about the best practices all beginners should know when replacing ATV valves.

Third Step

Next, you need to find the ignition circuit wire connector that is located in the main wiring harness. Take off the stock connect and install the new that comes bundled in the EFI kit. The wires need to be installed on the ECU computer, and the universal bracket (comes in the kit) can be attached to the dirt bike. The wires now need to be routed to the bracket.

Fourth Step

Use the instructions manual included in the kit to learn how to install the oxygen sensors (next to the engine’s first cylinder). Once again, the sensor wire needs to be routed towards the bracket so that it can access the ECU computer.

Fifth Step

Installing the intake air sensors can be tricky, but you shouldn’t run into too many issues if you place them next to the EFI throttle bodies. The best thing you can do here is to mount the throttle bodies on the intake manifolds right at the cylinder heads. The wires need to be routed from the sensors to the mount or bracket so that they can access the ECU.

Sixth Step

After the ECU is attached to the mount or the universal bracket, it’s time to use the instructions and color codes (included in the wiring diagram) to connect the sensors wires to the ECU.

Seventh Step

The high-output fuel pump needs to be mounted in the same spot where the old pump was located. Make sure to pay extra attention when connecting the fuel lines at the pump and the throttle bodies. Luckily, you can follow the labeled electrical leads (or use the picture that you took in the second step) to connect the terminals in the right order on the fuel pump.

If you want to learn more voltages and wiring, you should consider checking out this piece I wrote about the best ATV battery voltage guide that shows how to charge a battery and pick the right voltage.

Eight Step

The throttle linkages can be reattached to the new throttles bodies. You can do this by using the clips and keepers that come bundled with the EFC kit. You can twist the throttle grip while you are adjusting the linkages to make sure that they are working right. The final step is to mount the gas tank back on, connect the fuel lines from the petcock to the new fuel pump (by using clamps) and then reconnect the battery cables.

You can also check out the video linked below to see a video guide:

Is Fuel Injection Better than Carburetor Motorcycle?

There is a good reason why you only seem to find carburetors on vintages motorcycles. EFT (electrical fuel injection) is a much better option because it provides more power, lower emission rates, and improved fuel economy.

How Much Does It Cost to Change a Carburetor to Fuel Injection?

Replacing the carburetor with a fuel injector on a dirt bike requires some expertise, and if you don’t feel like doing it in your garage, you should be pleased to know that the price of changing a carburetor to fuel injection is not too expansion. In general, the price to convert a carburetor to fuel injection ranges from $50 to $100. However, I need to point out that the price can vary depending on the dirt bike model.

Facts About Installing EFI On Your Classic Ride

Electronic fuel injection has come a long way in the last 20 or 30 years. When some of the first, early aftermarket systems came about, they were not only confusing to install, they were also slow in regards to the computers they used. To actually use or tune the system, you were limited by your computer-programming knowledge. In other words, you had to possess not only the talents of a mechanic, but those of a computer geek. Fortunately, a lot has changed in the last decade or so, and installing an aftermarket EFI system on your classic car has become a mainstream modification.

Another determining factor when deciding whether or not to install an EFI system in previous years had to do with the actual price of the kit. Previous generations of EFI came at a time when technology was limited, and the cost of that technology was expensive. Pair that with the complexity of installation of those previous kits, and they kept all but the bravest enthusiasts from even attempting to install an aftermarket EFI system.

Enter The Smart EFI

When the first self-learning EFI systems came on the scene several years ago, most do-it-yourself mechanics were understandably skeptical. They still had nightmares revolving around previous attempts at installation, so their fear was perceived to be justified. But, like all “computer tech,” these systems have been around for a while, and have benefited from improved technology and electronics.

In an attempt to curb any reservations you might have about installing an aftermarket EFI kit on your car, we contacted a few of the major players that have developed kits, and asked them some of the questions that you have asked us. Fuel Air Spark Technologies (FAST), FiTech, Holley Performance Products, and Edelbrock provided answers, and dispelled some of myths that have been floating around on the Internet. By getting the answers straight from the horses’ mouths so to speak, we hope to alleviate any concerns you might have about installing one of these kits on your classic ride.

The current crop of available EFI kits, have been refined to a point that the installation really has become a simple process — the need for tuning is virtually non-existent. For the most part, these simple-to-use-and-install systems now afford classic car owners the luxury of fuel injection, with an easy installation process.

All of the systems from the aforementioned suppliers use a standard 4150-flange throttle body, making installation of the throttle body as easy as bolting a carburetor onto your car’s engine. Okay, that’s the easy part. Installing an EFI-quality fuel-delivery system is also required, and does involve some planning and forethought.

Fuelish Delivery

There are two types of fuel systems that can be used: a return-style and a non-return style. Just to keep it simple, a non-return style system means the fuel is delivered from the tank to the fuel pressure regulator, and the regulator only allows a required amount of fuel to the engine. The regulator holds the pressure. With a return-style system, there is an additional fuel line connected to the regulator that allows the excess fuel that is not required for engine function to return to the fuel tank. So, which system does your car require? David Page of FAST tells us, “The best returnless systems incorporate a way to dampen fuel-pressure pulses. Other than that, the pump used must be designed to be operated using pulse-width modulation. Extremely hot climates may not be the best choice for a returnless system, because of the increased risk of vapor lock.”

Eric Blakely of Edelbrock says, “Edelbrock does not offer a returnless fuel system because our core EFI customer-conversions to EFI are for pre-1974 vehicles with old school, non-baffled fuel tanks. Any EFI system — and particularly self-learning types, require a constant and steady fuel supply. When the fuel level in these older vehicles is less than 1/4 tank, they experience fuel slosh, which uncovers the fuel pickup and causes an unstable, severely-aerated fuel supply to the fuel pump.”

There is a way that cars with engines that were previously carbureted, can get around building an EFI-dedicated fuel system. Both Edelbrock and FiTech offer a remote-mounted fuel sump kit. These sump kits mount in your engine compartment, and the conventional fuel line that originally went to your carburetor is connected to the “in” port of the sump. From there, a high pressure hose is plumbed from the sump to the inlet port on the EFI throttle body. The stock carbureted fuel pump then feeds low-pressure fuel to the sump tank reservoir, and when the engine is running, high-pressure fuel is fed from the sump to the throttle body.

Before we continue, there is one myth that we have heard over and over that needs to be debunked. For some reason, there are still people that think that EFI can cure an improperly-running engine. This is true if your engine’s malady is a carburetor that needs rebuilt or replaced, but EFI is not a cure-all for an engine that has problems. Ken Farrell of FiTech let us know, “Make sure your surrounding systems are in good working order. If your car is running terrible and you have tried five carburetors that work perfectly on your friend’s cars, you should probably find out why it doesn’t work on yours before you order an EFI system. EFI can’t fix a camshaft with a bad lobe, or an intake gasket leak.”

Carburetor Versus EFI

Why would anyone replace a perfectly-working carburetor with an EFI system? For starters, has anyone ever seen a perfectly-working carburetor? You have to remember this about carburetors — they are a simple fuel-metering device that can be easily tuned to operate efficiently while at a steady-state of operation — like when cruising down the highway with no traffic requiring you to depress and lift-off the throttle pedal repeatedly, or when the engine is idling. In reality, cars operate at conditions where the throttle is continually moving. This movement might not be substantial, but it is occuring. It is during these throttle-transition situations where EFI has a distinct advantage over a carburetor, because it is capable of retaining a more consistent air/fuel ratio. This consistency typically results in better fuel mileage.

Carburetors work great in ideal weather conditions, and areas of the country that see little climate change. Unfortunately, ideal conditions are not constant at any location. To keep a carbureted engine optimally tuned, these changing conditions will require you tune your carburetor to match the conditions. On the other hand, these new, self-learning EFI systems are designed to automatically compensate for changing conditions.

Alex Healey of Holley Performance Products said, “The biggest concern we hear, is the lack of familiarity. Most enthusiasts have been using carburetors all of their life. Even if they do understand the concepts of EFI calibration, the act of doing it with a keyboard or touchscreen instead of jets, floats, and screwdrivers, is uncomfortable to them.”

But why are many enthusiasts still nervous or outright afraid to install this new-fangled fuel delivery system? Many of the concerns revolve around comments that are typically generated on internet forums. All it takes is one person to suggest that a certain kit was faulty, and it seems like people can’t wait to jump on the bandwagon. In reality, if one detail of the installation is overlooked during the install process, the results will be less than adequate. According to Farrell, “Wiring is one of the most common causes of problems that we see. Some of the main issues are: voltage drops when starting the car because the positive wire is not connected directly to the battery, and poor or non-existent grounding.” Blakely agrees, and felt it pertinent to give this advice, “Read the instructions provided, and pay special attention to detail. Be sure your battery, charging system, power supply, and ground wires are all solid.”

Power Versus Benefits

When it comes down to it, enthusiasts’ interests typically revolve around one requirement — did my upgrade create more horsepower? When it comes to pulling a carburetor off your engine and replacing it with a throttle body EFI kit, a measurable increase in power is not usually an end result. That is because a properly-sized manifold and carburetor can make as much peak power as EFI. That being said, EFI does tend to produce a broader torque curve, which can be beneficial — especially in a street car.

Page let us know, “One of the first questions we get asked is, ‘how much horsepower can this system make?’ The answer is: no EFI system is capable of making horsepower, it can only support the power potential of the engine, and the fuel injectors are the limiting factor. A naturally-aspirated gasoline engine will require anywhere from .4 to .45 pounds of fuel-per-hour, per horsepower. You will need injectors that are capable of supplying the necessary fuel based on the power potential of the engine.”

Cost Analysis

As many benefits as EFI can deliver, cost is still the major reason people choose to retain carburetors on their engines. Today’s self-learning kits have made the installation of EFI on a classic car a lot easier than it has ever been, but carburetors are — and will always be, plentiful and relatively cheap. A huge concern for many enthusiasts is the entry price for an EFI kit. No matter how you cut it, changing from carburetion to fuel injection isn’t cheap. That being said, there are self-learning kits like the Go EFI 4 kit from FiTech that is currently available for $995.

To give an honest cost comparison, we checked online with Jegs, just to see what the cost disparity really looks like. A newly remanufactured 725 cfm Quadrajet carburetor will set you back $330. A 750 cfm Holley Street Demon carburetor will cost you $347. Finally, depending on the fuel-injection kit you choose, you can expect to dish out anywhere from $1,000 or more. So, whether or not you feel the additional cost of EFI is worth it to you or not is entirely your call. But, it is hard to argue with the benefits that EFI offers.

Hopefully we have cleared up some myths and misconceptions about installing a self-learning EFI kit on your classic car, and with this new knowledge, you can comfortably change the carburetor on your ride to a more efficient EFI set up. Healey affirmed, “Don’t get overwhelmed! Although EFI is different than a carburetor, installation is not as daunting a task as most people would lead you to believe. However, make sure to take your time during the installation, especially when working on the wiring. Weak connections and bad grounds are by far the most common cause of issues in aftermarket EFI systems.

So you have finished reading the how to convert carburetor to fuel injection motorcycle topic article, if you find this article useful, please share it. Thank you very much. See more: convert atv to fuel injection, carburetor to fuel injection conversion chevy 350, efi motorcycle, diy fuel injection motorcycle, universal motorcycle efi kit, virago fuel injection conversion, diy fuel injection conversion, carb to efi conversion kit

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