How To Test Cdi Box 780 Triple - Snowmobile Forum: Your #1 Snowmobile Forum
User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 8 (permalink) Old 12-18-2003, 08:43 PM Thread Starter
Registered User
 
Join Date: Dec 2003
Posts: 8
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
How To Test Cdi Box 780 Triple

IS there a way to test my CDI box the motor seems to lose a third of its power after running for a while
ceasar01 is offline  
Sponsored Links
Advertisement
 
post #2 of 8 (permalink) Old 12-20-2003, 11:52 AM
Registered User
 
Join Date: Jan 2003
Location: Northern Ontario
Posts: 33
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
The CDI can not be tested , but the stator and coils can . if they pass their tests and you still have an ignition problem , then its the CDI....but the stator is the most common problem.....Jari
finn is offline  
post #3 of 8 (permalink) Old 10-26-2009, 06:44 PM
Registered User
 
Join Date: Oct 2009
Location: Cattaraugus, NY
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I have a similar problem where my 96 ultra will run great for a few minutes until you let off the throttle and it just quits. After checks, determined that there is no spark but after a few minutes I get faint spark and an little longer and its back to normal and will start great. Any ideas????
96ultra is offline  
post #4 of 8 (permalink) Old 10-26-2009, 08:15 PM
I am Spartacus
 
smallengineguy's Avatar
 
Join Date: Feb 2004
Location: Milton Mills, NH
Posts: 23,801
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
COil or stator in that order.

1992 Ski Doo Mach 1 (SC-10/2 suspended) March '07 SF.com Sled of the Month! (Lost in fire 4-7-13)
1992 Ski Doo Mach 1 original
2006 Ski Doo MXZ 500SS
1999 Ski Doo MXZ600
Webmaster Evergreen Valley Snowmobile Club
SledNH.com Moderator
smallengineguy is offline  
post #5 of 8 (permalink) Old 10-27-2009, 12:29 PM
Registered User
 
Blaine1's Avatar
 
Join Date: Sep 2009
Location: Flushing, MI
Posts: 706
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by smallengineguy View Post
COil or stator in that order.
What he said. Here is a video I put together showing how to check and replace a stator. Even though it is a cat, the same principles apply for both testing and replacing:

Stator testing out of a sled
YouTube - Stator Testing a 2 Stroke Stator


Stator testing in a sled:
YouTube - Stator Testing in a sled


Stator removal:
YouTube - Installing a Stator Pt.1 Removing it


Stator reinstall:
YouTube - Installing a Stator Pt.2 Putting Everything Back Together

Wanted: Dead Stators PM me.

Testing Cat triple stators
http://www.youtube.com/watch?v=Uzz2NZiw3fk

Stator Testing ZR/ZL 1998-1999 500 & 600 Carburated
http://www.youtube.com/watch?v=XM3m9i6uqSw

Stator Testing ZR/ZL 1998-1999 500 & 600 EFI
http://www.youtube.com/watch?v=jbxhExP-2P0

Stator Testing Early 1990's 700 & 580 EFI with the triangular 3 prong connector
http://www.youtube.com/watch?v=jbxhExP-2P0

Jumper wire bypass
http://www.youtube.com/watch?v=GPpzQL8J9ik
Blaine1 is offline  
post #6 of 8 (permalink) Old 10-28-2009, 05:34 AM
Registered User
 
Join Date: Oct 2009
Location: Cattaraugus, NY
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I originally thought about the coils, however I have a hard time believing that all three of them would show the same symptoms at the same time. Agree or disagree?
96ultra is offline  
post #7 of 8 (permalink) Old 10-28-2009, 05:56 AM
Registered User
 
Blaine1's Avatar
 
Join Date: Sep 2009
Location: Flushing, MI
Posts: 706
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by 96ultra View Post
I originally thought about the coils, however I have a hard time believing that all three of them would show the same symptoms at the same time. Agree or disagree?
If you have 1 bad coil and they have a jumper wire between them (like Cats do) it can effect all 3.

Wanted: Dead Stators PM me.

Testing Cat triple stators
http://www.youtube.com/watch?v=Uzz2NZiw3fk

Stator Testing ZR/ZL 1998-1999 500 & 600 Carburated
http://www.youtube.com/watch?v=XM3m9i6uqSw

Stator Testing ZR/ZL 1998-1999 500 & 600 EFI
http://www.youtube.com/watch?v=jbxhExP-2P0

Stator Testing Early 1990's 700 & 580 EFI with the triangular 3 prong connector
http://www.youtube.com/watch?v=jbxhExP-2P0

Jumper wire bypass
http://www.youtube.com/watch?v=GPpzQL8J9ik
Blaine1 is offline  
post #8 of 8 (permalink) Old 10-28-2009, 12:39 PM
I am Spartacus
 
smallengineguy's Avatar
 
Join Date: Feb 2004
Location: Milton Mills, NH
Posts: 23,801
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Doos don't have that jumper, besides the common ground.

1992 Ski Doo Mach 1 (SC-10/2 suspended) March '07 SF.com Sled of the Month! (Lost in fire 4-7-13)
1992 Ski Doo Mach 1 original
2006 Ski Doo MXZ 500SS
1999 Ski Doo MXZ600
Webmaster Evergreen Valley Snowmobile Club
SledNH.com Moderator
smallengineguy is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Snowmobile Forum: Your #1 Snowmobile Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome