Voltage Regulators
For bikes with separate
rectifiers and regulators
Adjustable Voltage regulator for
1969~1978 500 to 750cc SOHC
in-line four cylinder Hondas.  

$54.00
VR3-H
This voltage regulator ships with a
pair of 6mm Allen head screws and
you will need a 5mm Allen head
wrench (not included) to install it.
Adjustable voltage regulator for early Kawasaki and KZ400 and
KZ650.

(Not for KZ750 twin but I offer a custom order regulator for this bike.  Contact me for details
about it...)

$54.00
VR3-KZ
With this regulator your bike will charge in the 13.5~14 volts at an idle and 14.2 volts from 1500 RPM to red line and you can adjust the max
output + or - .5 volt.

This voltage regulator ships with a pair of 6mm Allen head screws and you will need a 4mm Allen head wrench (not included) to install it.
 
Contact me if you're not sure this is for your KZ.  Kawasaki changed the charging system around on these bikes over the years.
Voltage regulator for GT series Suzuki triples.

$54.00
VR3-SGT
This is same VR2 regulator but with wires color coded for
GT series Suzuki triples.  The 3 wire plug Suzuki used is
other than the locking tab is in a different place.  

This unit comes with a new plug for the harness for you to
install or you can plug it in as is, but it won't lock in place.
The plug on the left is the stock Suzuki voltage regulator plug that is not longer available.  The plug on the right is the one that ships with the VR2-SGT
VR3 regulators for Yamaha DS7, R5, RD250, RD350.

This is on our Yamaha 2 stroke twins page.
Voltage regulator for all 12 volt bikes with an electro magnet field alternator that
has one pole grounded.
If you're not sure this regulator will work for you, please ask...

$55.50
VR3-U
This unit has short leads and a splice in harness section so you can cut it to length.  Splicing supplies, heat shrink tube and mounting hardware are come with it.

Connecting this regulator is a snap, the brown wire is positive from the main power lead.  The black wire goes to ground and the green wire goes to the field
coil.   I can substitute in micro plugs for use on the Yamaha two stroke twins on special order.
This is a partial list of the bikes unit will work

Yamaha: R5, DS7,  RD250, RD350, XS series 650 twins.  

Kawasaki: early KZ650s

Suzuki: GT series triples.

BMW boxer twins up to 1983...
Not for the Z1, KZ900 or KZ1000
See our VRRPM3 for the KZ900/1000
This regulator the same electronics as my other VR3 series regulators but mounted on a larger plate with the mounting mechanical regulator.  
A new 3 prong plug is included for the wiring harness or you can use the original plug if you don't want the locking feature. Stainless steel
screws allen head screws are included to mount it to your bike.

VR3-Y650T
$54.00
and 14.2 volts from 1500 RPM to
red line.  You can adjust the for a
max output of 14.7v.
Adjustable Voltage regulator for 1969~1978 SOHC in-line four cylinder
Hondas.  

$54.00
VR3-H3p

This regulator is the same as above but it has the 3 prong plug installed and
comes with a mating plug for you to install on your bike.  This one is best for
custom bikes or is great to replace the old stock regulator connections on
your bike
VR3-H3p regulators installed
on a CB350 four.
Adjustable Voltage regulator for early KZ400 and KZ650.  $54.00
VR3-KZ-3p

This regulator is the same as above but it has a 3 prong plug  installed and comes with a mating plug for you to install on your bike.  This one is best
for custom bikes or is great to replace the old stock regulator connections on your bike.  
Adjustable Voltage regulator for 350 and
400cc SOHC in-line four cylinder Hondas.  

$54.00
VR3-H3540

It's the same regulator as the 500~750 use but
with a different mounting plate to better suit the
CB350/4 and CB400SS.
Adjustable Voltage regulator for 350 and 400cc SOHC
in-line fours.

$54.00
VR3-H3p

Same as the above regulator but with the mount changed to
better suit the CB350/4 and CB400SS
Ask me if you need a voltage regulator
for an early KZ750 twin.  We have a
couple options for this bike.