KymcoForum.com
Scooters - 50cc => Agility 50 => Topic started by: ConradFr on September 17, 2014, 07:52:15 AM
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Hello
On some car the CDI is rev limited to protect the motor agains too hight RPM
Derestricting the CDI of the agility make it going high in RPM
But what is the hightest RMP possible without destoying the motor and now what that prevents the motor to go too hight ??
Thank to the one who have the reply
Nice day to all the members
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Derestrction of the cdi in theory isn't bad for the engine at all. Most stock four stroke scooters can go to 10k fairly safely. A bone stock will hardly ever be able to reach that except maybe down a huge hill. It's all a matter of how you drive it, go 50mph downhill every day might not last too long.
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3 1/2 years almost 4, 0n a $49.00 Ebay China made 100cc cylinder kit using the oem cdi with a cut in the back.
Driven every single day, at an average of 20 miles per day.
The engines are fine. The rpm or cdi cut are NO ISSUE.
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Hi
Thanks for your replies
It seems that the limited cdi cut the RPM at 8500 so the max power for the 4T is at 7500
Is it necessary to deristrict in this case ?
Thanks again
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As you say, cutting the wire doesn't remove the rev limiter. It just changes it from 7500rpm to 8500rpm (or maybe 9000 rpm). It's still rev limited and won't damage the engine. If you don't derestrict the CDI you'll be limited to a lower speed, even though at 8500rpm you'e past the peak of the powerband.
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Hi
Perfect now i know all i need about this
Many thanks to all
Bye
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3 1/2 years almost 4, 0n a $49.00 Ebay China made 100cc cylinder kit using the oem cdi with a cut in the back.
Do you remember the name of this? I'd like to do more research, thanks.
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http://www.ebay.com/itm/Performance-Big-Bore-Cylinder-Kit-100cc-50mm-fo-139QMB-GY6-50cc-80cc-ATV-Scooter-/221558850478?pt=Other_Vehicle_Parts&hash=item3395efc3ae&vxp=mtr (http://www.ebay.com/itm/Performance-Big-Bore-Cylinder-Kit-100cc-50mm-fo-139QMB-GY6-50cc-80cc-ATV-Scooter-/221558850478?pt=Other_Vehicle_Parts&hash=item3395efc3ae&vxp=mtr)
Same kit, different seller. You can buy them w/ everything including a pipe for under 200.00 or just the Cyl. kit for 50.00
http://www.ebay.com/itm/Scooter-Big-Bore-Kit-100cc-50mm-Bore-QMB139-GY6-Scooter-Performance-Parts-Kit5BK-/221576809997?pt=Other_Vehicle_Parts&hash=item339701ce0d&vxp=mtr (http://www.ebay.com/itm/Scooter-Big-Bore-Kit-100cc-50mm-Bore-QMB139-GY6-Scooter-Performance-Parts-Kit5BK-/221576809997?pt=Other_Vehicle_Parts&hash=item339701ce0d&vxp=mtr)
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My agilty lasted 7 years with a cut cdi.the motor was still strong when I lost the scoot because of a big pot hole.
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We all know what really happened. It's a small world blue!
https://www.youtube.com/watch?v=RvCJr60CkGY (https://www.youtube.com/watch?v=RvCJr60CkGY)
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We all know what really happened. It's a small world blue!
https://www.youtube.com/watch?v=RvCJr60CkGY (https://www.youtube.com/watch?v=RvCJr60CkGY)
lol I wish I was that young enough to try that.
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Some pot hole man to bad you couldn't steer out of the way😂
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Hello sry to ask this on your post but how do you post question plz? Noobie
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Hi
On the top at the right you have
new topic
http://www.kymcoforum.com/index.php?board=9.0 (http://www.kymcoforum.com/index.php?board=9.0)
So just click on it
Bye
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Cutting the CDI will alow you to get higher rpm. Up to 9000. This should only be done after you've removed your restriction in the CVT, or if youre very careful not to let the rpm get too high. Double the rpm and you've quadrupled the wear om the engine, give or take, so no reason to drive high rpm, if you can get higher speed simply by making the CVT better. :)
When you've removed the restrictions, you will go further per revolution of the engine and therefore you can increase rpm without significantly lowering the life of your engine, measured in distance driven. :)
9000 rpm won't give you imidiate engine failure. I've had the 1 spring per valve version up to 9000 rpm a lot of times without failure and with the 2 springs per valve version i have had the original engine at 12.500 rpm. :)
When this is said, the force acting on the connecting rod is a function of the mass of the piston times the speed it moves at squared. Double the speed (the rpm) and you'll quadruple the force on the engine parts, so a minor flaw in the metal will become critical. I know a guy whose connecting rod broke after he derestricted it and Kymco wouldn't give him a new engine because he derestricted it which put more stress on the engine parts. :)
But that's the only guy i've heard of.
I have not done the calculations, so i do not know how much stress the connecting rod are exposed to. I will need the weight of the pushrod and some measurements of the diamentions. I already have measurements of the weight of the piston. If someone can supply me with this, i will be able to tell you the stress of the rod. To precisely tell you what the rod sould be able to cope with and what is material flaws in the production, i will need to know the material, which i will possibly roughly be able to estimate if someone can supply me with a sample. Broken or not, as long as there are more than 4 square mm free plane surface, so i can check the hardness and crosscheck it with CES Edupack material library. :D
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Anyone have any ideas on how to derestrict the newer Agility 50? Mine is 2013 model and it doesn't have a wire, I cut the CDI really deeply and no wire... :o
I bought a CDI from ebay for 4T 50cc scooters but my scooter won't start with it... :-\
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The new Agility's don't have the CDI restriction but the one you got from Ebay might have a better timing curve. Can you post a pict of what you bought? or a link to it?
Which CDI does your bike have... The one w/ two connectors or one?
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Zombie, I've bought the one you recommended. It has two connectors, one 4 pin and one 2 pin. Here is the link:
http://www.ebay.com/itm/Performance-6-pin-CDI-Racing-Box-Ignition-Coil-For-GY6-Moped-Scooter-50CC-150CC-/360654302083?pt=Motors_ATV_Parts_Accessories&hash=item53f8abeb83&vxp=mtr (http://www.ebay.com/itm/Performance-6-pin-CDI-Racing-Box-Ignition-Coil-For-GY6-Moped-Scooter-50CC-150CC-/360654302083?pt=Motors_ATV_Parts_Accessories&hash=item53f8abeb83&vxp=mtr)
And mine has the same two connectors (picture not great, but you can see them at the top):
(http://s22.postimg.org/w4bgqinup/2014_10_25_15_33_28.jpg) (http://postimage.org/)
I can connect both connectors easily, but the scooter simply won't start.
This cut at the CDI was actually done by the dealer when they derestricted it. The funny thing is that the original variator boss did not have a groove (limiter) on it, the dealer installed exactly the same one and I have the original but they are the same.
So, the same boss, no CDI restriction on the new Agility's... How do they restrict them then?! ???
The dealer statement says it went 37 mph before and 43 after. With me on it, it goes barely 40...
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Oooooppppsss! My bad... The cdi I linked is actually for the AC fired stator in the GY 6 engines. Your Kymco has a DC fired stator. I didn't read down the description, and you wouldn't have known to look for that.
I'll go over the options w/ you, and you can decide where to go next.
Option 1: See if the seller will allow you to return/exchange the cdi alone. 3-4 bucks shipping, and done.
Option 2: You can buy an AC stator/rectifiermade for the GY 6 engine, and swap out the stator/rectifier. About 35 bucks but the advantage is your bike will always start, and run with a dead or missing battery. The DC fired CDI's can not start/run a bike w/ no battery.
Option 3: I will buy the AC cdi from you and you can get the proper DC cdi for the bike.
Whichever route you want to take I will work w/ you to get it right.
The 40 MPH is normal for the bike. The next steps to improving that are a performance Var/rollers/contra spring.
After that a larger carb 45 mph
after that a better exhaust 50 MPH
after that a cylinder kit 55+ MPH
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QUOTE FROM DUDE ABOVE: How do they restrict them then?! ???
The dealer statement says it went 37 mph before and 43 after. With me on it, it goes barely 40...
[/quote] I have a 2013 a50 and if yours truly hits 40mph, its derestricted. Mine is still restricted via cdi still, i get 28mph (gps) and 33mph on the inaccurate speedo. Dealer told me everything on it is derestricted and also has a bigger jet, just need a high performance cdi and should be able to hit 42mph. But i dont know where to get a high performance cdi for a 2013 that fits or if i can cut the wire so its 28mph for now. I'm not 100% sure what to do so.....
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http://www.ebay.com/itm/GY6-DC-CDI-BOX-50cc-150cc-250cc-MOPED-SCOOTER-ATV-4-2-PINS-CHINESE-/121441208299?pt=Motorcycles_Parts_Accessories&hash=item1c4675c7eb&vxp=mtr (http://www.ebay.com/itm/GY6-DC-CDI-BOX-50cc-150cc-250cc-MOPED-SCOOTER-ATV-4-2-PINS-CHINESE-/121441208299?pt=Motorcycles_Parts_Accessories&hash=item1c4675c7eb&vxp=mtr)
That is the correct CDi for the Kymco Agility
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http://www.ebay.com/itm/GY6-DC-CDI-BOX-50cc-150cc-250cc-MOPED-SCOOTER-ATV-4-2-PINS-CHINESE-/121441208299?pt=Motorcycles_Parts_Accessories&hash=item1c4675c7eb&vxp=mtr (http://www.ebay.com/itm/GY6-DC-CDI-BOX-50cc-150cc-250cc-MOPED-SCOOTER-ATV-4-2-PINS-CHINESE-/121441208299?pt=Motorcycles_Parts_Accessories&hash=item1c4675c7eb&vxp=mtr)
That is the correct CDi for the Kymco Agility
So this cdi has a higher timing curve? If i bought this, would i go faster? 28mph sux, 39mph would be great! I dont get it, if theres no cdi rev limit/restriction, why cant i get past 28mph even on a very steep hill?
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So this cdi has a higher timing curve? If i bought this, would i go faster? 28mph sux, 39mph would be great! I dont get it, if theres no cdi rev limit/restriction, why cant i get past 28mph even on a very steep hill?
Have you done the other restrictions? Jet, boss etc?
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Have you done the other restrictions? Jet, boss etc?
For $50, the dealer said they did, which makes me wonder if they f'd something up. They said cdi was all that was left. Guess imma hafta call em up, maybe they have my purchase on record or remember me.
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Have them check for the smooth boss/82 jet. That is the de-restriction kit.
Also check your belt. It SHOULD be a Bando brand. Anything else is after market, and most likely the wrong size.
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Have them check for the smooth boss/82 jet. That is the de-restriction kit.
Also check your belt. It SHOULD be a Bando brand. Anything else is after market, and most likely the wrong size.
Ok, will do. I took cvt cover off once b4, i'm 60% sure it wasnt a bando. Or maybe it was? All i saw were sum numbers i believe and black dust. But yea will do. If i could hit 35mph gps, id b happy!
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Check out these few things, and post back. We can start from the begining just like I would w/ a junker bike. Compression test/ adjust the valves/tune up CVT/ set up carb/air/fuel filters... ect
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http://www.ebay.com/itm/GY6-DC-CDI-BOX-50cc-150cc-250cc-MOPED-SCOOTER-ATV-4-2-PINS-CHINESE-/121441208299?pt=Motorcycles_Parts_Accessories&hash=item1c4675c7eb&vxp=mtr (http://www.ebay.com/itm/GY6-DC-CDI-BOX-50cc-150cc-250cc-MOPED-SCOOTER-ATV-4-2-PINS-CHINESE-/121441208299?pt=Motorcycles_Parts_Accessories&hash=item1c4675c7eb&vxp=mtr)
That is the correct CDi for the Kymco Agility
Ok, this CDI is very cheap, but it is probably not a "performance" CDI, right? I mean, if ours 2013 AG50's have a derestricted CDI , will this one make any difference?
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Sutai is the only company I know of that builds in that rev limiter. That CDI linked is a China copy of the Sutai so I do not believe it will be limited. While it may not be a performance cdi it will act the same as the unlimited CDI.
You do have a point there... With yours being de restricted, there will be no advantage to swapping yours for that one,
I got confused on the year of your bike.
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I was having the same issue when i purchased my A50... The dealer ended up selling me a CDI for a A125. Worked out great for me. So if my dealer was correct on the part was they sold me that may be your route to go!!
After the drive boss, the jet and the CDI I was running roughly 43 MPH on the gps.
Hope this helps!
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Harness with a collar- just need to make the collar jingle to get their attention-
Yorkies have way too sensitive windpipes for choke collars-
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25k volts get em going...
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So this cdi has a higher timing curve? If i bought this, would i go faster? 28mph sux, 39mph would be great! I dont get it, if theres no cdi rev limit/restriction, why cant i get past 28mph even on a very steep hill?
I had a nice explanation written out here, but I got logged out by the high-tech BB system which wouldn't let me post - so I lost all the info when it canceled my post. Now it's time for dinner. Sorry!
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I for one would love to read it... Guess I have to wait. What are we having for dinner?
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Ok, i explained to the dealer that i had the bigger jet and boss installed for $45 but theres still one restriction left. Told him that the newer 2013s dont have a restricted cdi's according to this forum. He said, the only other thing to do is the pulley on the belt, it shouldve came with a longer one. WTF?? So i need a new pulley or a longer belt? The belt i have is a Bando 23100-KEB7-9000. Thats the right belt aint it? Zombie, bettinandlosin, blue, or any1, help please lol!!!
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He was mistaken. You have the same belt as 99% of us.
The next step after the de-restrict is 5.5gr rollers/sliders, a stiffer contra spring, larger carb. I forget if you have done any/all of these.
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Ok, i explained to the dealer that i had the bigger jet and boss installed for $45 but theres still one restriction left. Told him that the newer 2013s dont have a restricted cdi's according to this forum. He said, the only other thing to do is the pulley on the belt, it shouldve came with a longer one. WTF?? So i need a new pulley or a longer belt? The belt i have is a Bando 23100-KEB7-9000. Thats the right belt aint it? Zombie, bettinandlosin, blue, or any1, help please lol!!!
Yeah +2 to what Z said, take your bike somewhere else they don't know what their talking about.
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He was mistaken. You have the same belt as 99% of us.
The next step after the de-restrict is 5.5gr rollers/sliders, a stiffer contra spring, larger carb. I forget if you have done any/all of these.
But why do i only get 28mph even @ full throttle down a hill? It absolutely stops exactly at the same speed everytime. It cannot go past that no matter what. Somethings not right. And no, i have not done the rollers, spring etc. I was under the impression that i could at least hit 36-40mph with out that? So im thinking if they didnt derestrict it, my topspeed woulda been 20-25mph? Say waaaaaa? I bet they lied, i still have the original jet and boss lol!!
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35 is the top sped for most restricted scooters. 40 is de restricted
There is NO way for any of us to know what state yours is in over the net but we are willing to help try to figure it out. You however have to do the work.
Pull off the cvt cover, and the variator and tell us wht drive boss is in it. Same for the carb jet. Put your eyes on it, and tell us which jet is installed. Pull the square plug out of the air box.
From there we can go further. Till then everyone is lying, and the bike will always go 28 up hill down hill off a cliff. Always 28. (Stephen King Gypsy curse) Always 28!
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Yea it hits 34mph on speedo, 28-29 on gps. But youre right zombie, i'll be back.
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We'll be here Bro!
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Sutai is the only company I know of that builds in that rev limiter. That CDI linked is a China copy of the Sutai so I do not believe it will be limited. While it may not be a performance cdi it will act the same as the unlimited CDI.
You do have a point there... With yours being de restricted, there will be no advantage to swapping yours for that one,
I got confused on the year of your bike.
The 2013's do have the Suitai D411 30410-LBD6-E00 2013.FEB CDI's!!!!!!!!!!!!!!!
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I have a 2009 agility 50 which unrestricted cdi do I need
Sent from my iPhone using Tapatalk
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I've tried many different CDIs and found with an unlimited RPM model, things can come unglued. I used to run my BBK 50cc Kymco at 10,000 rpm (about 50mph) but my variator exploded, taking out the left side of the crankcase. I don't know for sure if it was the high rpms (I use a tach), but (I've since switched to a 9,000rpm CDI). So far, so good, but I'm down to 44mph.
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Can someone tell me where to buy this big bore kit from the actual company that sells it
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Can you post a link to the nine thousand cdi
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There must be a 100 companies selling BBK conversions for gy6 motors, which is what the older Kymco 50s are). But there's 2 different Kymco 50cc engines, one is fuel injected, and older gy6 types have a carburetor. You can't BBK a fuel injected model because the fuel injection can't be adjusted afterward. For the carbureted models, go to Scrappy Dog (http://www.scrappydogscooters.com (http://www.scrappydogscooters.com)).
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What's cvt?
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how about derestricted for a DC CDI module?
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We all know what really happened. It's a small world blue!
https://www.youtube.com/watch?v=RvCJr60CkGY (https://www.youtube.com/watch?v=RvCJr60CkGY)
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We all know what really happened. It's a small world blue!
https://www.youtube.com/watch?v=RvCJr60CkGY (https://www.youtube.com/watch?v=RvCJr60CkGY)
Tell us more - your video was deleted, so we haven't a clue what this is about.