I rebuild my 1987 cr125 and it did not have spark after I got it all together. All the electrical parts checked good . I adjusted the pulse coil after watching this video and it fired right up. Thanks!!!!
Dude well done! I have a 93 that only likes to fire up every now and again. My buddy says i need to kick it harder... i think i have an intermittent spark. Looking forward to discovering what the issue is soon!
This one of my guesses with a bike I am working on right now. I tested the pulse voltage and had to same issue, how to capture it. Thanks for the great information.
Thanks mate got my rmx 250 running by just adjusting the trigger coil .only after purchasing new parts with no results at least I can eBay the new bits and get some money back and my pride lol thanks again now a subscriber
I actually don't know what brand it is. I borrowed it from someone else. If you search for peak voltage tester you will find them. Some multi-meters have them built in. Since my cheap meter doesn't have that feature, I had to use the extra peak voltage module.
dude, i have an 85 cr125 ive been losing my mind over for several years now... i replaced coils, stators, pickups... never thought to check the gap... i will do so asap, and if she fires... well i'll send yo some love bruv... ty
My 88 cr 125 is not wanting to start really, adjusted it now it fires. But it keeps going back to where it was, did you loosen those 2 screws to bend it?
I didn't have to loosen the screws, no. Do you have a feeler gauge? You can check the gap with a feeler gauge. Have you checked the ohms on the stator?
Man, I hate electrical problems. It's hard to know for sure, but that sounds like a failing stator. If the winding has a small fault, the flow of electricity in the winding can change the temperature of the wires enough to open the circuit. Do you have another stator you can swap out? Or, alternatively, you might be able to test the stator ohms when it's cold, then quickly test again after you crank it to see if anything changes. Good luck with it!
It had one always had stator problems ,if it did start I had low speed /rpm pick up problems but when everything worked fastest bike I ever had ,if I had to do it again I would wire it to a DC CDI with a small 12 volt battery ,not an AC CDI
Yes - motorcycles with two-stroke engines require some oil be mixed with the gasoline. Some modern two strokes have oil injection, but most two strokes require that you mix oil into the fuel that goes in the tank.
![HOW TO TEST A STATOR / WHAT IS A STATOR [step by step] GY6](http://i.ytimg.com/vi/VoXYzQ61tRM/mqdefault.jpg)
I rebuild my 1987 cr125 and it did not have spark after I got it all together. All the electrical parts checked good . I adjusted the pulse coil after watching this video and it fired right up. Thanks!!!!
Sweet! So glad it helped. Enjoy the 125. That's a nice bike.
@@some-guys-garageany idea what the gap for a 2004 cr85 would be ? Thank u 🙏🏼
Dude you are a diamond amongst gems, dirt bike scholar !
Well, how flattering! Thank you.
I just did a full off the frame restoration of my 86 CR 250 , and that’s one thing I am so thankful for to God I did not have to mess with!
Congrats on the resto! Definitely one of the most iconic MX bikes ever. And in my opinion still the best looking bike on the planet. :)
Air gap..my Haynes manual says adjust it after a bottom end rebuild..
Your Haynes manual would be correct!
I just tore down my 86 CR250 and taking this journey. I’m a newbie, it’s a little intimidating but going to enjoy it
Very nice. Have fun!
Dude well done! I have a 93 that only likes to fire up every now and again. My buddy says i need to kick it harder... i think i have an intermittent spark. Looking forward to discovering what the issue is soon!
Good luck with that. Electrical issues are the worst! Thanks for tuning in.
This one of my guesses with a bike I am working on right now. I tested the pulse voltage and had to same issue, how to capture it. Thanks for the great information.
Good luck with that bike.
Great video I was getting 3 volts out of the trigger coil !
Great info here! I'm getting ready to restore my '86 CR125 and I will be checking this gap when I get close to finishing her. Thanks!
Good luck on the project. It's a lot of fun. I have a 1985 CR125 hanging on my wall. Literally. It's a piece of art.
Thanks mate got my rmx 250 running by just adjusting the trigger coil .only after purchasing new parts with no results at least I can eBay the new bits and get some money back and my pride lol thanks again now a subscriber
Glad it helped!!
Can you tell me where/what name of the max voltage meter you hooked up to the multimeter Have no spark on my 85 CR250
I actually don't know what brand it is. I borrowed it from someone else. If you search for peak voltage tester you will find them. Some multi-meters have them built in. Since my cheap meter doesn't have that feature, I had to use the extra peak voltage module.
dude, i have an 85 cr125 ive been losing my mind over for several years now... i replaced coils, stators, pickups... never thought to check the gap... i will do so asap, and if she fires... well i'll send yo some love bruv... ty
Sounds familiar. Here's hoping!
What happened
@Williamsinos 7:00
What would be the issue if it’s too close where it hits ?
It will wear itself out. As a general rule, moving parts shouldn't strike stationary parts.
I hope this is my issue too!!😊
Good luck with it!
My 88 cr 125 is not wanting to start really, adjusted it now it fires. But it keeps going back to where it was, did you loosen those 2 screws to bend it?
I didn't have to loosen the screws, no. Do you have a feeler gauge? You can check the gap with a feeler gauge. Have you checked the ohms on the stator?
Frustrating but very informative
I feel your pain
Thanks for sharing
Hope it helped. Thanks for tuning in.
Sir can i ask?
About cr125 1993.
About cdi
Well, sure. Ask away. Can't guarantee I have an answer, but we can try!
Have 84 cr 500 air cool get spark first 3 cranks then disappears if I wait min same thing again
Man, I hate electrical problems.
It's hard to know for sure, but that sounds like a failing stator. If the winding has a small fault, the flow of electricity in the winding can change the temperature of the wires enough to open the circuit. Do you have another stator you can swap out? Or, alternatively, you might be able to test the stator ohms when it's cold, then quickly test again after you crank it to see if anything changes.
Good luck with it!
It had one always had stator problems ,if it did start I had low speed /rpm pick up problems but when everything worked fastest bike I ever had ,if I had to do it again I would wire it to a DC CDI with a small 12 volt battery ,not an AC CDI
👍👍👍😁
One question, those motorcycles must have oil in the gasoline.
Yes - motorcycles with two-stroke engines require some oil be mixed with the gasoline. Some modern two strokes have oil injection, but most two strokes require that you mix oil into the fuel that goes in the tank.
88 cr 250 putting the piston and new engine berings in today
SWEET! Love those bikes!