Rieju & GasGas Legacy Riders Club Forum  

Go Back   Rieju & GasGas Legacy Riders Club Forum > GasGas Enduro Technical Forums > Enduro Electrical & Wiring

Enduro Electrical & Wiring Lighting, Ignition, Wiring, Plugs, etc.


Reply
 
Thread Tools Display Modes
  #1  
Old 05-15-2019, 06:08 AM
Dutch Dutch is offline
Member
 
Join Date: May 2019
Posts: 7
Default CDI/ECU measuring scheme?

Hi you all, I am new here form the Netherlands. My 2011 EC300 has no spark at this moment. Measured everything except the CDI. Does anyone know how te measure is and wat the normal Ohm readings are?


Reply With Quote


  #2  
Old 05-15-2019, 01:09 PM
Gasser Nate's Avatar
Gasser Nate Gasser Nate is offline
Senior Member
 
Join Date: May 2010
Posts: 644
Default

What are your peak voltage readings for the source and pick up coils (stator)?
__________________
Back on a gassy! 2018 EC300! 🤘
Txt 280 07 to make me feel like a gumby again
Reply With Quote
  #3  
Old 05-16-2019, 08:13 AM
Dutch Dutch is offline
Member
 
Join Date: May 2019
Posts: 7
Default

impulse coil = 99.7 ohm and from source is 14.5 ohm. All wel within the specs. I checked earth, cleaned it all and this is ok, all other wires are checked and ok, ignition coil to sparkplug checked and ok. so my thoughts are CDI but i need resistance figures to check.
Reply With Quote
  #4  
Old 05-16-2019, 09:36 AM
Gasser Nate's Avatar
Gasser Nate Gasser Nate is offline
Senior Member
 
Join Date: May 2010
Posts: 644
Default

Not resistance, but peak voltage, measuring what the stator actually outputs voltage wise. Should be at least 4 volts for the pick up and around 100v for the source coil at kicking speeds.
__________________
Back on a gassy! 2018 EC300! 🤘
Txt 280 07 to make me feel like a gumby again
Reply With Quote
  #5  
Old 05-16-2019, 02:05 PM
(F5)'s Avatar
(F5) (F5) is offline
Gold Level Site Supporter
 
Join Date: Jul 2006
Location: Wellington New Zealand
Posts: 2,062
Default

Meters are great but not everything can be verified with ohm readings, cdi being one of them, the stator due to failure modes can also pass and yet still be faulty. Try AC volt tests as Nate says. Stators do fail after time. KTM style replacement.
__________________
'07 EC300 GG
'14 TXT250 GG
'? 496 CPI Cheetah RZ/RGV hybrid
'22 765 Street Triple RS
'21 XTrainer
'69 Stinger T125 Suzuki
'23 TRS 250RR (it's a Trials thing)
Reply With Quote
  #6  
Old 05-16-2019, 03:54 PM
gasgasman's Avatar
gasgasman gasgasman is offline
Super Moderator
 
Join Date: Jul 2006
Location: Pearland Texas
Posts: 4,594
Default

+1

Can't really check resistances of transistors and diodes.
Best bet is to swap with a known good CDI module.
Reply With Quote
  #7  
Old 05-17-2019, 09:08 AM
Dutch Dutch is offline
Member
 
Join Date: May 2019
Posts: 7
Default

Thanks for the advice. AC is very low so maybe this is the problem. I noticed that it has been onderwater and a lot of dirt has come between rotor and stator. There is also excessive play on the main bearing so i will take the engine apart first, clean rotor and stator and check again if engine is in one piece again. I will let you know what the results are.
Reply With Quote
  #8  
Old 05-17-2019, 04:04 PM
(F5)'s Avatar
(F5) (F5) is offline
Gold Level Site Supporter
 
Join Date: Jul 2006
Location: Wellington New Zealand
Posts: 2,062
Default

They do have quite a lot of play due to the bearing. My freshly rebuilt one scared me.

Electrixworld did a ktm stator which bolted onto my plate fine.
__________________
'07 EC300 GG
'14 TXT250 GG
'? 496 CPI Cheetah RZ/RGV hybrid
'22 765 Street Triple RS
'21 XTrainer
'69 Stinger T125 Suzuki
'23 TRS 250RR (it's a Trials thing)
Reply With Quote
  #9  
Old 05-18-2019, 09:43 AM
Neil E. Neil E. is offline
Senior Member
 
Join Date: Mar 2007
Location: Gormley, Ontario, Canada
Posts: 1,418
Default

Can you measure the voltage output of a different bike? A KTM 2T should have similar values to a GG.

I don't know the actual voltages but it's something like: the single wnding puts out 30 volts to the CDI. The CDI puts out 300 volts to the coil. The coil puts out 30,000 volts to the spark plug.
__________________
2011 EC250E
Reply With Quote
  #10  
Old 05-18-2019, 02:32 PM
gasgasman's Avatar
gasgasman gasgasman is offline
Super Moderator
 
Join Date: Jul 2006
Location: Pearland Texas
Posts: 4,594
Default

If memory serves me correctly.

The CDI runs off 12v.
The CDI grounds the power to the coil, which collapses the electrical field in the coil.
Whatever voltage is required for the spark to jump the plug gap, that's the voltage the coil puts out.
Reply With Quote
Reply



Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Measuring Fork Spring Rate Trick toadl Enduro Suspension 8 03-25-2014 01:34 PM
measuring squish? thejackrabbit Enduro Engine - 2 stroke 11 01-14-2014 10:37 PM




All times are GMT -5. The time now is 08:50 AM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright 2009 - GasGasRider.org