I only work 3 miles from home but with gas prices getting out of control, I thought it would be great to have an electric motorcycle. I've always wanted an electric motorcycle and decided that doing an electric motorcycle conversion with an electric motorcycle motor would be a good EV project, keeping costs down, and be fun to ride. This project took about 3 months of research and development (not counting waiting for parts to come in or help from a friend with the welding). All in all, it cost about $3000 to build an electric motorcycle with a high performance electric motorcycle motor. This may take a long time to pay off in gas savings, but if you add the fun of building and all of the environmental benefits, it was well worth the effort. With a top electric motorcycle motor speed of over 70 mph and 10 miles per charge, this electric motorcycle is perfect for me. The following instructable will not give you exact step by step instructions, but if you have some mechanical skills and welding ability you should be okay. A little knowledge of electric motorcycle motor maintenance wouldn't hurt, too. However, I just read the user's manual and learned as I went.
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Every motorbike is different but the basic components can be the same. Below is a list of the parts I used and where I got them, but you will have to do some research to figure out what fits your bike and requirements. Check out the electric motorcycle photos at the bottom to see what I bought and the EVAlbum for other electric motorcycle conversions.Frame: I looked at many different bike styles and decided on a 1984 Honda Interceptor for my electric motorcycle conversion for a few reasons:
1) I like the style of bike, not a total crotch rocket but not a hog either, with room for electric motorcycle batteries inside the frame. 2) The seller on Ebay was close to my house. And the bike didn't run, so it only cost $600 which is a perfect price for your first time electric motorcycle conversion . If you have an old bike or someone will donate one then that's great--but for the rest of us, try the local paper, junk yards, Craig's List or ebay motors. Electric Motorcycle Motor:
After reading other electric motorcycle conversion specs (and knowing that I wanted to go faster than a moped), I chose a 72V electric motorcycle motor(D&D Motorsystems carries many options), because it's weight and dimensions where good for my frame. Electric Motorcycle Batteries: I went with 6 Yellow Top Optima batteries from remybattery.com because they are sealed and have received great reviews. After making cardboard mock ups of the D23 model I realized that there was no way six full sized batteries would fit and still look good. I ended up getting the D51 model. Half the size and weight but also half the storage. Electric Motorcycle Controller: You have to match your electric motorcycle controller to your voltage but the amperage is up to your budget. More amps = more power and more cost. It seems that there are only two real choices: Alltrax or Curtis. You'll have to decide for yourself, but I went with the 72V 450Amp Alltrax.(D&D Motor Systems carries these) Don't waste your time trying to build a potimeter on an old throttle--just buy a pre-made one and be done with it. I got the Magura 0-5K Twist grip throttle.Electric Motorcycle Charger: You have to match your charger with your voltage but the speed of charge in Amps is also up to your budget. I went with a Zivan NG1 but I have recently switched to six individual 3amp Soneil chargers to help balance the batteries.Electric Motorcycle DC/DC Converter: It's safest to run with a DC/DC converter and an extra 12V battery backup but motorcycles have limited space so I am only using the converter. I purchased a Sevcon 72V Input 13.5V output from evparts and it has working perfectly.Electric Motorcycle Fuses: You'll want to get a fuse that matches your setup. I bought model ANN 400 w/ holder.(D&D Motor Systems carries these)Electric Motorcycle Solenoid: This is a device that you hook up to your existing key ignition on 12Volts and it will close the loop so you get the full power to your controller. An excellent Solenoid is the Albright SW-180B-12.(D&D Motor Systems carries these)Electric Motorcycle Battery cable and connectors- I bought about 10 feet of 2 GA wire from WAL-MART and cut it to length. Using Lugs, I soldered and used heat shrink tubing on each end. I highly recommend battery terminal covers for safety.Electric Motorcycle Instruments I chose an E-meter(Link 10) w/ Prescaler add on for 72V use instead of a bunch of different meters. As an added feature I wired up the ignition switch to the neutral indicator to show me when the bike was on.Electric Motorcycle Other partsWire - 12GA different colors and heat shrink tubing (large and small sizes)Electrical tapeWire connectorsWire wrapToolsBasic shop tools are required such as a socket set, screw drivers,wire stripper, etc. Additionally a volt meter, metal grinder and crimper are used in this electric motorcycle conversion project.
Start the electric motorcycle conversion by removing all of those nasty internal combustion engine parts. Remove the gas tank and using your grinder or other cutting tool to cut out the bottom. This makes room for extra batteries or components. (Make sure all gas is out before cutting) Reference your owners manual often during any electric motorcycle conversions so that you don't cut any necessary wires, and try to sell some of the parts to help pay for this electric motorcycle conversion project.Next, make cardboard mock ups of all of your batteries and electronic components to see how and where things are going to fit. Take a look at my electric motorcycle conversions pictures to see how I fit everything, believe me that taking the time to make accurate cardboard mock ups is well worth the effort.Now for the hard part. You need a secure battery box and electric motorcycle motor mount for any electric motorcycle conversion. I had a friend weld it up for me and he did a fantastic job. From the photos you can see that he first strung up the electric motorcycle motor to allow for minor adjustment to be made before cutting the electric motorcycle motor mount plate. After that was cut he made a nice chain and sprocket enclosure with a door and welded them onto the frame. Next he fabricated the battery rack and gave each battery a swing arm closure to give a tight fit yet still allow me to get them out easily. Half inch foam padding spacers are between each battery to help cushion the stack--but believe me, they aren't going anywhere. The last thing he did was weld in metal plates for mounting my electric motorcycle motor.After you get your electric motorcycle motor mount and battery compartment all welded up, take some time to clean up the frame of your bike. I removed any rust spots and chipped paint that I could find. Then I used some metallic gray and black spray paint. This makes a world of difference and costs very little. I made a fake gas cap and ran the power cord from the charger up the frame and out the top. Now that you have all of the welding done and your electric motorcycle frame looks great, let's install the electrical components and start wiring it up your electric motorcycle conversion.
Double check all of your connections and tighten every bolt.I wanted my electric motorcycle conversions bike to look as good as it rides, so I had all of the panels painted and custom graphics made up by worldsendimages.Using a serial cable and laptop, tweak the electric motorcycle controller program for your riding preferences.Lastly, I got the electric motorcycle conversion bike inspected and insured. (Be prepared for the dealership mechanics to swarm and hit you with a bunch of questions and jokes about failing the emissions test).I know these weren't step by step building instructions, but that's because of the complexity of this electric motorcycle conversion project and variables in component use. My intention was to give you the motivation to build your own by seeing how I did it and make it easier by supplying the electric motorcycle parts list and a wiring diagram. MSD
These impressive performance figures are apparently down to a five-speed clutchless transmission, a powerful D&D Motor Systems DC motor, and a liquid-cooled Zilla controller more commonly found in electric drag race cars like BlackCurrent III
Making the case for an electric car - higher up-front costs, but then much less expensive and environmentally damaging to operate - to someone switching from a gasoline-powered car is pretty straightforward.
I test-rode an electric sport motorcycle called the Zero S this and week and was surprised by how appealing it is even for someone who loves the chugging rhythm of a Ducati twin or the wail of an old Honda V4. The quiet whir of the electric motor and its impressive off-the-line acceleration made the Zero ideal for city riding, where hearing nearby traffic can be as important as seeing it. 2ff7e9595c
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