Kawasaki KZ #2
LocationWharton, New Jersey United States map
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Vehicle1980 Kawasaki KZ750G
Used. In good condition. Needed a new turn signal
Motor ME0708 Permanent Magnet DC
Brand: Motenergy
Power: 8 cont-- 15 pk hp
Voltage: 48 Volt rated
Speed: 3500 rpm @ 48v unloaded
Size: 8" OD, 5.5" long (w/o shaft)
Shaft: 7/8"x 1-3/4", 3/16" key
Weight: 28 lbs
DrivetrainSprockets and chain.
ControllerAlltrax SPM 48400
Color coded terminals
24-48 Volts
400 Amps Peak
460 (Peak Amp Mode)
9 Inchs long
Standard 4-spade
Flexible USB programming
Integrated heatsink mounts on any suitable
Solenoid Control for Main DC Control
Batteries4 Vmaxtanks VMAXSLR60 AGM deep cycle 12V 60AH, 12.00 Volt, Lead-Acid, AGM
System Voltage48 Volts
Up to 6 Amps during bulk charge phase.
DC/DC Converter SUPERNIGHT 48V 40-60V To DC 12V 10A 120W GOLF CART
InstrumentationSpeedometer is working
Top Speed40 MPH (64 KPH)
49 mph theoretical top speed.

I have taken it up to 40 mph when the batteries
were fully charged.
AccelerationBetter than I had hope given that there are 15
teeth on the drive sprocket.
Range23 Miles (37 Kilometers)
If I keep the speed low and don't climb a lot of
hills I can get 23 miles.
Watt Hours/MileUnknown at the moment.
Seating Capacity1 adult
Curb Weight0
Unknown at the moment.
Conversion TimeOver a year. I have been busy with night classes
and this was my first conversion.
Conversion CostAround $4000 not counting the first batteries and
motor I bought. They turned out to be too big.
Ok, so the controller was over-sized, I initially bought the wrong motor
and batteries, and the build took an inordinately long time. So what?
It works now. And I'm known as a crazy Doc Brown type by a lot of folks
in my apartment complex. I couldn't be more thrilled. That said, the
bike is a pretty mainstream design relative to the other Kawasaki's KZ's
with AGM batteries you'll see here.

The biggest challenges for me were the build process and the wiring
diagrams. You think you know where a particular hole or component should
go....but no, it really has to be 1/8" to the right, or in a completely
different location! Oh well, c'est la vie.

code by jerry