GY6 AC vs DC Stator/CDI [ How does it work? What is best? ]

[@Michael69101]

That explains a lot, on some old trouble starting issues maybe.

[@RollingWrench]

Nice! Hopefully this video will help a lot of people

[@williammoss1310]

Excellent content... and even better kits!!! 👍 I've been tinkering with the Lifan, Zongshen, and Shineray 200cc and 250cc vertical clones for a few years now. I've done engine swaps on both of my 1972 Honda CB100s with these engines. I absolutely LOVE THEM!!! The 172FMM is a BEAST!! 😂 Unfortunately, both of my vertical clones have "wet" 8 pole AC stators. They also have very odd sized center hubs and bolt spacing. Mine also mount to the stator COVER... not to the case. I've looked everywhere for 11 and 18 pole stators that have the same hub and bolt spacing, but i can't find them. I guess my only option to convert to DC ignition is by deleting the exciter coil circuit in my AC system. I dont have any issues with charging or dim lighting with my existing 8 pole, so it would probably work fine... RIGHT?? I REALLY like the idea of your digital DC CDI. Verrrry nice, indeed! Have a great day. 👍

[@MiguelHernandez-wo6wh]

Can I use this kit to upgrade my 98 Honda fourtrax 300 4x4 Upgrade to dc

[@leavemyrightsalone]

Wish I got into all this many many years ago. Great explaination!!!

[@unclechufty1]

Slightly off base question , what's the difference between a 2 stroke and a 4 stroke magneto - if any ? Also does the rotor have to match the coils , (is there a different amount of magnets for the different amount of coils ? )

[@userpike]

What happens if you run the DC CDI directly from the rectifier instead of sending the electricity to a battery first?

[@mechatronicsadventurist2760]

For me i love AC starting because when ypur battery low it wont sfart while Ac even without baterry you can start engine.and you can drive.

[@RollingWrench]

Actually that’s false. You can completely remove the battery and kickstart the engine with both ac and dc systems. As you kick over the bike the stator pumps voltage into the cdi which has a capacitor to store enough energy to start the bike and keep it running. As long as you have a good charging system no battery is required.

[@ronaldfain4541]

@@mechatronicsadventurist2760 your right about it that’s why I love ac too

[@amyreaves8054]

Do you have this for a Polaris?

[@tommy_9938]

Hello there, I really love your video. I want to ask, between AC and DC CDI, which one produce bigger spark in high rpm?. I hear that DC create more stable arc from low to high rpm, then the AC have tiny arc in low rpm but gradually getting bigger in high rpm. Are the AC arc in high rpm bigger than the DC?

[@RollingWrench]

Good question. I honestly am not sure. I really don’t think it would matter. I’ll have to explore that concept. I have never noticed

[@calambres6614]

Will this cause the bike to lose spark or cut spark at super high rpm ?? If the pick up sensor is not gapped properly? Like to far away?

[@RollingWrench]

No, normally if the gap is to big starting is an issue

[@calambres6614]

@RollingWrench thanks 🙏

[@nickbraddock7422]

I started a mobile scooter repair in Miami, Florida. I would enjoy it if you were willing to talk to you for insights.

[@wiley0714]

I put up a video on my channel. I tried doing the research online and on KZbin. I know I have an AC stater. There are four brushes so three of them are four making energy for the battery to recharge through the AC/DC rectifier. The other coil I guess you would call it. The exciter coil would make or send electricity up to a CDI box. The CDI would enhance that to provide a spark. Currently, I have no spark. I was trying to solve whether it was the CDI box or if it was within the AC stater. The issue that I'm having is that I see all these videos within an AC stater that states that the exciter coil would provide energy to a CDI and then they would be a magnet on the flywheel that would activate a "trigger "for the CDI to fire. However, my unit was working for six years and it started twice the other day. I turned it off and when I went to restart it within the next two minutes, it would not start. No spark. My main issue that I'm not understanding is I do not have any type of pick up coil or trigger coil for the CDI to know when to fire. So my ultimate question is. How does the CDI know when to fire/discharge the energy it has stored ? Additionally, I will note that my charging wires have continuity to ground, and according to the schematic, all of them should go to ground. It would appear to me that energy is provided to the CDI box and then at some point, it should be pulled to ground to signal it to discharge. Again, I understand the concepts that I'm learning, but I don't understand how this CDI box would know when to fire ? My video showing the stater and the wiring diagram is here kzbin.info/www/bejne/hnLWl3iLgZukgLcsi=qr7YDYBVuk6t8mmN

[@brianborshoff6876]

I like your video. Unfortunately the DC will not work without a battery. The exciter coil is there for a reason. Many dirtbikes dont use batteries. My CT70 clone engine doesnt use a battery so the DC unit will not work.

[@RollingWrench]

This video was specifically for the GY6 engine. The kit is used for GY6 only. But yes you are correct. Ac has to be used on the dinosaur bikes with the dinosaur technology. This was the point I was trying to make. Battery equipment GY6 engines are still using AC systems. They should be updated to a newer and better technology.

[@cristianr3712]

​@@RollingWrench Does that mean the GY6 engine technology is not "dinosaur" tech?😂

[@RollingWrench]

@@cristianr3712 No actually quite the opposite. As I showed the GY6 Stock AC system is dinosaur tech. The dc system is the updated system. I thought I did a decent job showing that…. But maybe not.

[@ronaldfain4541]

Sorry I prefer the ac system then dc system.the dc old school to me

[@RollingWrench]

@@ronaldfain4541 you do you bobo…. Not me, not even 1%

[@scooterbomb2152]

Excellent stuff Matt, Will all this come with the PNP ruckus wiring harness you are developing?

[@RollingWrench]

No, I have something much much better :-).

[@scooterbomb2152]

@@RollingWrench how far are we away from this one? Trying to decide what bike I build on the channel next?

[@RollingWrench]

@@scooterbomb2152about 2 months or so.

[@scooterbomb2152]

@@RollingWrench I wait with much anticipation.

[@brandonbrandon749]

Correct me if I’m wrong but the downside to the DC system is that if the battery dies or fails it will not run u are stranded…. But with the AC system u can at least kick start it and get your self home because it can run without a battery

[@brandonbrandon749]

All tho bad for all the charging parts

[@RollingWrench]

Dc systems can run with no battery installed just like an ac system. Both, as long as the charging system is working.

[@brandonbrandon749]

@@RollingWrench ok I must have been thinking about something else

[@joshwaller6226]

I have always heard this as well

[@RollingWrench]

@@joshwaller6226 try it. Remove your battery and kickstart your bike. It will run purely on the charging system.

[@CooterPotPie]

Hey man, love the content. I'm looking into getting into ruckus' mods as a hobby, I was just wondering if there's a year of used ruckus to avoid buying if im planning to do a gy6 swap and completely customize?

[@RollingWrench]

Niiice! No all ruckuses are the same from 2002 to present. Other than a few engine changes on the stock motor. But for GY6 swap any year will work

[@hfdtv4114]

as a person new to GY6 parts due to my motorcycle being discontinued and most parts are gy6. is AC and DC similar to the term half wave and full wave? because when i got my bike(used) my mechanic fixed the Regulator then i noticed that my batteries always dies after a few months. put a volt meter to it then it showed it outputed 16-17V went to a different mechanic. he stated that my stator was halfwave. he edited it to make it into full wave. volt meter now never passes 15V and i have not yet experienced my battery dying.

[@agk7678]

Can an exciter coil and pickup coil be integrated with each other? it looks lite that on my ignition on my Rieju Mrt 50 2015 bike. And it runs without a battery if that makes a difference.

[@kwyntonmarx7229]

No the pickup coil is outside the charging assembly as he says

[@Saint43211]

I appreciate the video man!

[@RollingWrench]

Thanks for watching!

[@aydenmaesen4433]

Can you connect a dc stator on ac cdi?

[@RollingWrench]

No

[@jasonfabo7126]

Did we ever get the new tunes for the bigger gy6s?

[@RollingWrench]

Not quite. Still working on them

[@jasonfabo7126]

@RollingWrench we appreciate you, let us know

[@RG-gk4yi]

Would the AC system keep working if the battery died?

[@brianborshoff6876]

No!

[@RollingWrench]

Yes, if the charging system was working. No if the battery was dead and the charging system was not working.

[@amyreaves8054]

Thank you again!

[@RagingDamage]

Hey there, i have a 2024 frontier with a 161 qmk b2 engine block, if I swap to a 150cc 11 inch (11 inch is same length as the 161 qmk b2 to the rear axle) engine, would that be compatible? if not, what are alternative long case engines i can put on without a bore kit on my 2024 boss frontier scooter.

[@DavidMeling]

Hello, i have a 50cc 139qmb with ecu injection. Do you know how i can tune it?

[@RollingWrench]

Fuel injected?

[@DavidMeling]

@@RollingWrench yes, it’s a Peugeot kisbee from 2022 with 139qmb engine and mikuni ecu I think, that’s all I know

[@fatchunk3678]

Would this fork for Navi?

[@RollingWrench]

No. We have this though: www.rollingwrenchdenver.com/products/untitled-sep5_01-58?keyword=navi

[@gregorymcnear6474]

Thanks

[@RollingWrench]

You're welcome!

[@johnengland8619]

Thanks again for the content

[@RollingWrench]

Thank you for the support

[@NOFx420x]

I just need a how to video to convert a system to DC headlights

[@RollingWrench]

Maybe I can do that next

[@NOFx420x]

@@RollingWrench much gratitude

[@XPFTP]

you should statde the fact this are not lawn mower staors. also NOT ALL stators are the same as in ... i have AC stators with only 2 wires. they goto a regulator. just lil things. oo no excitor coil. so iam out as iam more cornfused typing this then iw as before

[@martianrays]

Pretty poor, and disingenuous, excuse to run a DC system. "Look the AC system has more wires and less charge coils." The AC system doesn't need a battery and if your running a head light and tail light you don't need a big charging system. That shorai battery is perhaps the biggest waste of money..

[@RollingWrench]

Dc doesn’t need a battery. Ac has flickering lights

[@Wundernut66]

So I have a black wire that comes out of my stator (11 pole gy6), but nothing coming out of my drow harness that it connects to. I got curious and put a multimeter on it and the voltage was 200+, what does it go to?

[@RollingWrench]

It’s probably a black wire with a red strip. I imagine drow uses a basic dc cdi box rather than a dc cdi coil. That would mean everything is the same as an ac set up, but with a dc cdi. So 12v power goes to the cdi rather than ac power