Justin Cole, Kris Williams, Chad Dickman, and Todd Sanderson of West Virginia University Institute of Technology just completed their Suzuki GT 750 Electric Motorcycle Conversion. Looks like it turned out real good. Even though the power of the motor that was removed would have been much more powerful the new 8 HP electric motor does get this thing moving at a nice speed.
"Motor
Briggs and Stratton Etek-R
Model EMC-R
8 HP – Continous
15 HP – Peak
160 In-lb Torque
The electric motor kit selected for the design was a Briggs and Stratton E-Tek R. The E-Tek R is a 48 volt electric motor. It delivers a peak horsepower of 15 HP and 8 continuous HP. Also, a Magura twist grip throttle, wire kit, and a 250 amp fuse were purchased. The cost of the motor kit was $1075 and was ordered from electricmotorsport.com.
Controller
Alltrax 4834
Input: 24-48 volt
Current: 300 Continous amps
Batteries
48 Volt System
4 – BB Batteries
Model EB50-12
The desired specifications for the battery were as follows:
– Deep cycle batteries
– 12 volts for 48 total volts
– High amp hours
– light weight
– Compact size
– Reasonably priced
Four EB50-12 batteries, manufactured by B.B. Batteries, were selected for the power source. The batteries are 12 V batteries and weigh in at 36.4 lbs each. The EB50-12 has an amp hour (Ah) rating of 50 Ah. The EB50-12 battery is lighter and smaller than a typical 12 V car battery that was originally considered. The cost for one battery was $145.
The battery charger purchased for the project was a 48 V, 4 amp charger produced by Soneil. This charging system will charge fully discharged batteries in eleven hours.
Contactor
White Rogers 12-4T
Coil Voltage: 12 VDC
Rated Voltage: 12 VDC
Continuous Current: 200 amps
Fault Current: 1000 amps
Throttle
Magura Twist Grip 0-5k"
Permalink
Id just like to add that the bike was built for a total of $2100 and that it can reach a top speed of 50 miles an hour and it has an estimated range of 25 miles. Also I would love to do another conversion for profit if anyone is interested.
Permalink
I am an EE and was looking into doing a conversion for a 2007 LIFAN TMS Motorcycle, but I am always hesitant to TIG weld, or any weld for that matter since it is the only tool I do not own. How much welding was involved?
Permalink
I’m torn. The EE in me thinks this is an awesome project. But the motorcyclist in me died a little when it was a gt750 that gave it’s life for this. Those are awesome rare bikes.
Nice range with inexpensive batteries tho. Gives me a little hope for building my own one of these days.
Permalink
There was a good bit of welding involved, the whole battery tray was made of mild steel and mig welded but the motor plate was made of 1/4 inch aluminum and just bolted in place. If you could build the battery trays out of aluminum, steel and just bolt the stuff or build it out of a composite such as carbon fiber or fiberglass. We chose the bike on the fact that it was a steel frame and we could weld to it.
Permalink
Well we bought the bike from a motor cycle repair place for $200. It was already in pretty bad shape if you look at the photos. It wasn’t that bad of a build, I enjoyed it and I encourage you to give it a try.
Permalink
NOOOOOO NOT A WATERBUFFALO!!
Permalink
Permalink
i need diagram elektrical about box electric tsr suzuki 200. tanks for your attention