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[HOWTO] USE DUAL CDI

haen

Super Veteran
Hi, i've been asked by a forum member on how to use dual CDI if we want to CHANGE CARB to LARGER DIAMETER.

The same question which been bugging me when i decided to change the carb.

So, let's begin ...

BASIC PRINCIPLES :

1. We use the STOCK CDI to handle the temp sensor, TPS etc.
2. Ignition stuff is redirected to the NEW CDI
3. If we dont want to use STOCK CDI, and only want to use SINGLE CDI, so far i only found Cheetah Power Programmable CDI that can do that, by adding additional module to handle ONLY temp sensor, TPS indicator etc
and still use single CDI to handle ignition

TOOLS required :

1. Wire cutter
2. Clamp

MATERIALS needed :

1. Cable connector
2. Isolation tape

REDIRECT the cable from the main cable that goes to the CDI socket to the
NEW TARGET CDI

there's 4 cables :

1. Pulser (WHITE) --> connect this TO ur NEW CDI
2. Power (BROWN) --> jumper this from switch / better yet.. RELAY
3. Ground (BLACK) --> connect this from ur NEW CDI to the body
4. Ignition (ORANGE) --> connect this TO ur NEW CDI

pictures to come soon..
 

haen

Super Veteran
@goff : it's already on the proven tips and tricks thread bro.. get the power directly from the battery for the CDI
 

traxxas-modifier

Super LOLO
Staff member
nice info bro!

anyway heres from what i understand.
if you have a CDI that dont support the 4pins connector (tps, temp sensor, fan sensor)

you can use the stock cdi to have the TEMP, FAN to work.
the TPS wont work because tps is integrated with the ignition timing control part of the cdi.

this means that, your fan, temperature will still be working
by using the stock cdi to control the temp, fan.

while the new cdi will control the ignition timings of your engine.
with that you dont have to worry about your engine getting overheat
due to fan and temp sensor is not working.

am i correct bro haen?
 

King.Leoric

Super Veteran
hmmm looks like this trick is being used by some CDI before (old Kitti CDI), or the XP Cdi where it uses the stock CDI to handle fan and temp..
 

humanbasic

Member
hi all.nwe here.good advise.just to share.i prev tried to dual all the wire system.result:cdis failure due to power lag(thinking to parallel batteries).bike respon very aggressive.still learning.:rolleyes:
 

leatherback

Veteran
Hi, i've been asked by a forum member on how to use dual CDI if we want to CHANGE CARB to LARGER DIAMETER.

The same question which been bugging me when i decided to change the carb.

So, let's begin ...

BASIC PRINCIPLES :

1. We use the STOCK CDI to handle the temp sensor, TPS etc.
2. Ignition stuff is redirected to the NEW CDI
3. If we dont want to use STOCK CDI, and only want to use SINGLE CDI, so far i only found Cheetah Power Programmable CDI that can do that, by adding additional module to handle ONLY temp sensor, TPS indicator etc
and still use single CDI to handle ignition

TOOLS required :

1. Wire cutter
2. Clamp

MATERIALS needed :

1. Cable connector
2. Isolation tape

REDIRECT the cable from the main cable that goes to the CDI socket to the
NEW TARGET CDI

there's 4 cables :

1. Pulser (WHITE) --> connect this TO ur NEW CDI
2. Power (BROWN) --> jumper this from switch / better yet.. RELAY
3. Ground (BLACK) --> connect this from ur NEW CDI to the body
4. Ignition (ORANGE) --> connect this TO ur NEW CDI

pictures to come soon..
where's d picture, i've been waiting for so long
 
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