KymcoForum.com
Scooters - 50cc => Agility 50 => Topic started by: Agil on April 13, 2008, 10:34:35 AM
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this allows you that your Agility runs 9000 rpm
just cut the CDI on a place shown on picture, there is a tiny copper wire which should be cutted
Just be careful, do not cut too much
CDI placement
(http://img266.imageshack.us/img266/5522/1cdikj1lt6.th.jpg) (http://img266.imageshack.us/my.php?image=1cdikj1lt6.jpg)
cut it here:
(http://img256.imageshack.us/img256/9344/2cdizi6hw1.th.jpg) (http://img256.imageshack.us/my.php?image=2cdizi6hw1.jpg)
macro view: the wire is brown copper spot 1 centimeter under arrow, not the black spot shown by arrow
(http://img257.imageshack.us/img257/1776/3cdiqk1qf0.th.jpg) (http://img257.imageshack.us/my.php?image=3cdiqk1qf0.jpg)
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Adding to Agil's Information. Yes..This does work. I've increased 2008 Agility 50 from 42 mph. to 47 mph. and possibly 50, if I can get the right wind and stretch of road. I didn't Dremel or grind a slot. I used a single edge razor blade and carefully cut a "V"
into the center of the rear edge as shown in his pics. Be careful, this copper wire is very, very small and I thought it
was almost molded into the wall of the box. Cut the wire. Once you've run the motor. Fill your slot with silicone and
press a piece of tape over it to flatten the silicone out neatly. June 08.
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Cool thanks for the info on the cdi.
But how do people find where to cut in the first place... ?
Someone must have destroyed a CDI to get this information.
Urbstfrend you are not running with a unrestricted CDI and a restricted variator are you ?
If you do that i have read it could give you engine damage.
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These CDI's apparently used to have an exposed green wire that was easily cut. Then one day, some electronics expert said,
"Hey let's cut this wire and see what happens". This wire is really really small. After I cut it, I immediately started the engine to be sure it still ran and it wasn't until I hit the road, I realized it really helped.
Now here's the scoop on the Variator. I've never read anything about that. However, let me say cutting the wire doesn't exactly turbocharge it either. If the wind's behind you, then you'll notice it, if it's against you it takes a while to get up to any speed FAST.
I wouldn't be too overly worried. Now...If I do a muffler / carb. change, it could be an issue.
50cc is an in-town conveyence, however I have driven 11 miles to work at 5:00 a.m on a 2 lane state highway along the white
line. I also have yellow strobes on top of the rear trunks on all three of my bikes and always wear either a Fluoroscent Orange
or Lime Yellow ANSI III Jacket. People rarely, if ever, cause me any trouble. Frankly some think I'm law enforcement.
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Wow, 9,000 RPM is screaming. What is the max rev stock?
My 50 goes 33 mph on the flats and 35 downhill. The dealer gave me a clutch bushing that said would let the clutch shift out further and give another 5 or 10 mph, but I haven't put it in there. Anyone done that mod? I can post a pic of the bushing if anyone wants to see it.
My state has a 30 mph max speed for mopeds, anything faster and it's considered a motorcycle then you need a helmet and insurance and license plate and endorsement. The moped doesn't need anything of these things. I supposed you could just ride 30 mph when the police are around and when you're out on your own you could wind it up. :D
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Bob O > I would like to see that clutch bushing.... if you can post i picture that would be nice.
I used that bushing on the front part of the variator:
(http://mentos.wep.dk/scooterhjemmeside/billeder/billed0180.jpg)
Is it the same as the one your talking about ?
The restricted bushing is to the left in the picture and the unrestricted bushing is the right on.
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Almost all newer upper end scooters have the CDI restriction. The factory limits these scooters to 30mph to comply with state laws. Most laws state that a scooter exceeding 49cc's or 30mph max speed is considered a motorcycle. I'm sure most of you already knew that. These engines are actually designed for 9000rpm's and 45+mph speeds. They have the same 49.3 displacement as a Honda Spree but build bigger carburetors, bigger intake diamater, bigger exhaust tubing and a muffler that is capable of getting rid of exhaust. They put the CDI wire on the inside of the box so people just can't "cut" the wire as the old ones had the green wire loop. People find a way to bypass that system. That resrictor has always been there, someone didn't find it by luck. A dealer probrobly told someone who told someone else. Just as with the rest of the restrictions.
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Bob O > I would like to see that clutch bushing.... if you can post i picture that would be nice.
I used that bushing on the front part of the variator: http://mentos.wep.dk/scooterhjemmeside/billeder/cvt010.jpg
Is it the same as the one your talking about ?
The restricted bushing is to the left in the picture and the unrestricted bushing is the right on.
hi ppl, im just a noob to scooters, motors, and many more.
im portuguese, i just bought a kymco agility 50cc, for 500€ with 3000km.
i dont think the former owner did anything to it.
i just cuted that cdi wire, but haven´t tested it yet.
i think i did it well, found the cooper wire and cut it gentely.
as for the other mods, i just cant find pictures on the web, and as i am a noob to motors engines etc, can u help me out with that picture of the unrestricted bushing (i dont even know what a bushing is lol).
thanks in advance.
[]
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Here is a link to an illustrated guide to putting an unrestricted clutch boss bushing in an Agility 50. It is very simple to do and will take about 15 minutes. The only special tool that is highly recommended is an impact wrench (you know, the ones that are run on compressed air, like the mechanics use). With the impact wrench the nut on the front pulley comes right off. Without the impact wrench it would be very challenging to remove the nut. The bushing makes a big difference. My Agility 50 now does between 40 and 45 simply be cutting the cdi and installing the bushing.
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Here is a link to an illustrated guide to putting an unrestricted clutch boss bushing in an Agility 50. It is very simple to do and will take about 15 minutes. The only special tool that is highly recommended is an impact wrench (you know, the ones that are run on compressed air, like the mechanics use). With the impact wrench the nut on the front pulley comes right off. Without the impact wrench it would be very challenging to remove the nut. The bushing makes a big difference. My Agility 50 now does between 40 and 45 simply be cutting the cdi and installing the bushing.
i dont see the link, :P but i found it myself in the web, i tested the cutted CDI and it works fine for me.
the bike was going 45 km/h, now 55km/h, much more rpm. i tested it on plain ground.
glad it worked. :D
as for the clutched boss how much do u think it will gain on km/h?
is it worth it?
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Oh yeah, the link.....
http://www.scootertherapy.com/bosspage.html
Doh!
I think it is well worth putting the clutch boss in. The part only cost me 35 or 40 dollars and made a world of difference. It allows the scooter to perform as it was originally intended, not restricted. I can't give you km/h references, but in mp/h I went from a top speed of 30 to somewhere between 40 and 45. You can convert those numbers to km/h for reference. The only two modifications I have done is the clutch boss and the cdi cut. I did them both at the same time so I don't know how much either modification alone would make. The top speed varies according to road conditions, incline or decline, and wind. I don't think the overall horsepower or torque is affected by these mods, so it still takes awhile to get up to speed. The consensus is that these two mods should be done first, and possibly changing the carburetor jet (which I have not done) before doing any other mods. Personally, these two mods are probably all I will do to my Agility 50 for now. Other options such as a big bore kit, different exhaust pipes, etc., all cost hundreds of dollars. If I were to do any more mods they would probably be clutch springs, rollers, stuff like that which is relatively inexpensive and gives some benefit.
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thx m8.
i found a little piece in the tool bag of the bike that seem to be the clutch boss (unretricted)
it´s a chrome cilinder 4/5 cm.
could that be it?
i read somewhere that ppl discovered these pieces in the bikes after they bought it?
tomorrow ill try to post a photo.
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It is. Diameter 20mm, length 38mm.
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(http://img245.imageshack.us/img245/6578/p1010428small6953533.jpg) (http://img245.imageshack.us/my.php?image=p1010428small6953533.jpg)
these parts were in the little tool bag.
is that it?
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what is the size of the jet? (the yellow screw)
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what is the size of the jet? (the yellow screw)
about 8 mm long, what is it for?
do u need other measure? (sorry 4 my poor english... and knowledge lol)
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what is written on it? (example K82)
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what is written on it? (example K82)
it´s written k82 like u say in.
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just installed the new boss, it´s going fast and furious, 65km/h (plain ground, but did not pushed it to limit, since i just drive it in a near road, not long enough to push it further than that.)
had a rough time removing the cover thanks to the poor quality screws, one of them is just unusable.
the nut from front pulley, came out allright just with a simple key like this one (dont know the english technical therm)
(http://www.centrallobao.pt/fotos/produtos/VICR12.jpg)
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well today i took it to a long road, and the little devil just kept on running till 70 km/h, wich surprised me to be honest.
and i think it could co further, but the stop sign did not let me go any further... :P
at 70 km/h the screw in the exhaust pipe just went off the bike (hope i did not kill anyone ;D), it was just hand-screwed.
anyone knows just what that screw does?
i replaced it with new one.
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the screw in the exhaust pipe just went off the bike (hope i did not kill anyone ;D), it was just hand-screwed.
anyone knows just what that screw does?
i replaced it with new one.
anyone?
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Wow! That was soo easy. I can't believe it.
Thanks a million!
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I just bought a '09 Agility 50 with 7km on it...some guy near me won it in a radio contest, sold it on eBay to me for shall we say "less than retail value"
Bought it without ever riding one, but I did read thru this forum from start to finish....already noticed the cold start/ bogging issue this AM at 6:15 when I woke up to get it on the road....but it seemed to warm up quite fast (wasn't all that chilly this AM...this concerns me a bit, as I hoped to ride into Dec)
I have a couple good size hills near me, the bike is stock and drops to 20 mph on the steepest ones.....seems like I get 40 mph on the speedo, so I assume that is what 34...?
Bought a race CDI, waiting for it now....didn't want to notch mine to cut the wire....and I ordered the boss clutch thing to install.....although I have no power tools....maybe I can borrow.
Hoping these two things help out in overall speed and hill climbing ability....otherwise, nice ride, and I like the look of it, now that I stripped it of all it's "racing stickers".
I decided to go with the: hard break in on the engine after reading around...anyone else go this route with this scooter?
I can already see that I want more power, time to take this for my motorcycle license, sell it, and buy the 125....
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Turns out, mine was de-restricted by the dealer! (That is why I had no bag of goodies)
I already ordered a unrestricted Kymco CDI ($89 plus shipping) and a boss clutch ($25 plus shipping) so if anyone wants them, I will be listing them on eBay, or email me doug01 at the gmail dot com I will make you a good deal!
This turns out to be a case of good news bad news...the good news is I don't have to do anything! The bad news is my scooter doesn't go up hills around here very well....Time to get the 125!
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I tried the new "race cdi" to make sure it worked with the Agility before selling it....and I think I will keep it.....the scooter starts much easier with it, than my derestricted factory one. hmmmm Before I had to give it a little gas each time to start it, now: one quick button push, no needed gas/.........top speed appears the same though.....
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I have about 160 miles on it now....did the first oil change at 20 miles, it was pretty dirty, and a fair amount of metal shavings in the collection screen.....
My GPS says it will do 42 mph on a long flat straightaway.....I think that is all I can ask for, considering I am at least 225 pounds!
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ya it works I did mine and got an extra 9 to 11 mile an hour sweet. when I cut the cdi I just put elec tap in the cut to cover it. now im looking for a way to rejet it when cold come back is there a way to rejet for colder weather.
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I just "notched" my cdi on my 06 Agility. I was topping out around 40 mph. I'll let you know what I top out at once it stops raining.
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I top out around 46 on flat ground now. ;D
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...this works too...
peace
click on image for larger
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..i like posting that pic so ppl won't be too intimidated by notching their cdi....
peace
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I bought the race CDI on ebay, its an original kymco part for $64 shipped from taiwan. Probably could have saved a few bucks by notching my original one.
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...it's possible that you might get better performance from a "race" cdi....
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I bought the race CDI on ebay, its an original kymco part for $64 shipped from taiwan. Probably could have saved a few bucks by notching my original one.
Sounds like someone is selling the Suitai for a profit.
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...but does it have the right profile??..
..that was my thoughts....
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Hate to say it but... A cut, and epoxied version.
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...dammit...ppl suck...
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Just my guess. But I agree
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Its same size as the original, but there are not cuts or signs of re-epoxy. Got it from this guy http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=290432977410&viewitem=&sspagename=STRK%3AMEWAX%3AIT (http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=290432977410&viewitem=&sspagename=STRK%3AMEWAX%3AIT)
I agree... waste of money. Sucks being a noobie :(
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Its same size as the original, but there are not cuts or signs of re-epoxy. Got it from this guy http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=290432977410&viewitem=&sspagename=STRK%3AMEWAX%3AIT (http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=290432977410&viewitem=&sspagename=STRK%3AMEWAX%3AIT)
I agree... waste of money. Sucks being a noobie :( Y do you think it sucks?, And Y a waste of money?
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Could have gottan same results, less money.
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...i dunno if you get the same results...
..scootermaven has an aftermarket cdi in his A50..
..we swapped them out and made a run...
..my scoot performed better with his cdi...
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Do you have the info on his cdi?
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...just this...
..and i spoke wrong...this cdi came out of his 09 A50, and there was no wire inside the casing...
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...this is what he did searching for it...
..gave my scoot more power, and a bit higher revs that translated into a mph or 2 at top end...
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First post, and I wanted to tip my hat and say thanks...
I just bought a 2010 Agility 50 which, according to the speedometer, topped out at about 34/35 mph. Cutting a notch in the CDI as shown in this thread gave me a 5 mph increase- I can now hit 40 mph on level ground. There are a few other mods I've found here that I am looking forward to trying as well.
Thanks again- I really appreciate those extra miles per hour! They make a world of difference when you've got someone riding your butt and the throttle wide open...
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No doubt!There are a lot of really cool people here just looking to make it good. The Agilities seem to out number all the other 50cc's BUT I T Ink 'm Goin thruuuu a unnel. Ba d Recpti n.
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...yeah we fire every other, but we last llllonngerrrrr.......
...Welcome to the Forum premnas!!
..you should change out, or machine the drive boss in your variator, and go up 2 sizes on your main jet in your carb...
..those are the first steps to hittin 45-50 mph, with these A50s...
...but first!!...how many km do you have on ur scoot??
peace
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Thanks for the warm welcome!
It's not even broken in. 126 miles x 1.609 = 202.7km. I've got my eye on a new clutch (drive ?) boss as discussed earlier in the thread, but I haven't looked into resizing the main jet.
It's a little too soon to be making any other mods, right? The manual really stressed the importance of the break-in period, and I've tried to keep the speed down, really I have, but... Well, you know.
I think my expectations for a 49cc 4 stroke are pretty realistic- I would be happy if I could coax 45 - 48 mph out of her. The Agility 50 is obviously an around- town commuter, but that would allow me to keep up with the flow of city traffic, for the most part.
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If you're sure the scoot isn't a lemon... Do the mods, asap. You can break it in at the ranges it will be run. That is always a PLUS
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Well, the scoot seems pretty solid to me, fires right up every time and runs very smoothly from idle to full throttle. It doesn't seem like a lemon...
Regarding a new clutch boss: For the time being, I'd rather just replace the bushing itself instead of the whole variator assembly, but the places I've found online don't seem to list the derestricted variator bushing by itself. I was hoping someone could point me in the right direction...?
EDIT:
N'mind, I kept looking and found what I was looking for!
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...persistance ever breeds success...
..post back with your results!!!
peace
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I was wondering about this too: I see these engine series numbers used a lot: 139QMB 157QMJ (GY6).
Does one of these describe the Agility 50?
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...my engine is a CK-139QMB-2..
..a variation of the gy6 engine...
..if you have CK50QT-5 printed on the top of your carburetor, then your engine is the same as mine..
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I did the notch in my CDI and can't tell much.. I'm not sure if I cut deep enough though.. should I go a little deeper? Also I was thinking of buying a 19mm carb to replace the 17mm? carb.. would this help with speed or do I just need a larger jet? I don't know anything about messing with the clutch parts.. I bought my Agility 50 with 77km on it so I'm sure everything is stock. Also I am in the US so I don't know if everything is still restricted here or not. I am such a noob here so any advice will help :)
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I dont think newer agility models have restricted cdi, they are mainly restricted by a washer in the variator after that anything else im more a modification than a derestriction, i personaly would just enjoy what you have for now and if you still want more than 40mph in a years time get a bigger scoot....
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I did the notch in my CDI and can't tell much.. I'm not sure if I cut deep enough though.. should I go a little deeper? Also I was thinking of buying a 19mm carb to replace the 17mm? carb.. would this help with speed or do I just need a larger jet? I don't know anything about messing with the clutch parts.. I bought my Agility 50 with 77km on it so I'm sure everything is stock. Also I am in the US so I don't know if everything is still restricted here or not. I am such a noob here so any advice will help :)
I think the carbs on the agilitys are alreay a 19mm .I may be wrong but when I was going to buy a new one they where all 19mm.
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I forgot to metion my AG 50 even tho new was born on July 2008 :) I guess the other owner didn't love her the way I do.
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About the notch on the cdi, I cut till I saw what looked like just a single thread of copper.. very very small. Is that all it is?
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I dont think newer agility models have restricted cdi, they are mainly restricted by a washer in the variator after that anything else im more a modification than a derestriction, i personaly would just enjoy what you have for now and if you still want more than 40mph in a years time get a bigger scoot....
Yeah I was thinking of riding this one for about a year or so and save $$ then buy a bigger one next year or so. I just like the 50 cause no tag or insurence here in Ga.. which is great for me since I am poor..lol
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..the 08 agility does have a restricted cdi..and yes that lil copper strand is it...
..my 08 engine had an 18mm carb...
..you're never going to get blazing speed, or super quick take-off from these 4ts..
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ok me geting confused I have seen 17 mm carbs and 18 and 19 and now 20 mm carbs working on the agilty.
which size is the stock carb. and which size should I get with out doing to many mods. if I get a new carb.
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I'm wondering the same thing...
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..dunno about all oem sizes, but both my 08 and 09 have the same 18mm carb...
..i bought a kehin 20mm carb for the 08...
..without a kit, a 20mm is plenty big enough..
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you still have 50cc right.. not bored.. how hard was it to change out to a 20mm and did it improve much? Also can someone point me to a good reliable website that sells Agility preformance parts? Thanks :)
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..no kitting...still 50...
..with the 20mm, i believe a 103 main jet, K&N air filter, modified oem exhaust, she would put the speedometer needle over the white "tenths" digits of the odometer..
..downhill, of course...
http://youtu.be/4ZsXS_vl1NQ (http://youtu.be/4ZsXS_vl1NQ)
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..no kitting...still 50...
..with the 20mm, i believe a 103 main jet, K&N air filter, modified oem exhaust, she would put the speedometer needle over the white "tenths" digits of the odometer..
..downhill, of course...
http://youtu.be/4ZsXS_vl1NQ (http://youtu.be/4ZsXS_vl1NQ)
Awesome... this is exactly what I want to do with my scooter... I want to do all I can with a 50cc.. for the thrill I suppose :) I been out riding ALL day.. Man I love MY Agility 50!! :D
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Hay word how many miles on your agilty. Nice video.
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..thanx blue!
..i'm pushing 72,000 kms on the 08 scoot i rode off the showroom floor in december of 07..
..17,000 kms on the 09 engine that i put on the 08 frame..
..rode 55,000 kms before i had engine trouble with the 08..
..i love my kymmi...
8)
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wow your doing good mine is a o7 with 30.000 km hope she stays strong. makes it sound like I have over a half of live left out of her.
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makes it sound like I have over a half of live left out of her.
...keep those valves adjusted and your oil changed often...
;D
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makes it sound like I have over a half of live left out of her.
...keep those valves adjusted and your oil changed often...
;D
thanks. I do a oil change about every 3 monthes and a valve check twice a year.
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..no kitting...still 50...
..with the 20mm, i believe a 103 main jet, K&N air filter, modified oem exhaust, she would put the speedometer needle over the white "tenths" digits of the odometer..
..downhill, of course...
http://youtu.be/4ZsXS_vl1NQ (http://youtu.be/4ZsXS_vl1NQ)
Cool vid Word, im not far off what your getting, on a good day i get it to about 52mph on the gauge (downhill ;D ). Need to get a vid up myself soon as we get some better weather, its good to show all the doubters that over 50mph is possible on an A50. I noticed a few folk grumbling not too long ago that anyone claiming over 42-44 were basically lying ::) , not true, it just takes time and patience to tune your scoot right. Just because you cant get your scoot to run at its peak, it doesnt mean others cant.
My son just bought a headcam for when we go snowboarding ( i must be so good he wants to film me? :D ) i may need to borrow that and strap it to my helmet to post up my my top speed.
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I think the real point people are trying to get across is that for every a50 that achieves 50mph there are 20 or 30 a50's that get screwed up and abandoned or have to be professionally repaired . 50 mph on an a50 is NOT easy and most new owners should not be encouraged to get in over their heads . JMO .
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I think the real point people are trying to get across is that for every a50 that achieves 50mph there are 20 or 30 a50's that get screwed up and abandoned or have to be professionally repaired . 50 mph on an a50 is NOT easy and most new owners should not be encouraged to get in over their heads . JMO .
Couldnt agree more Juice,dont just dive in to anything, research it 1st and feel comfotable that you know what your doing before you start anything, and do one thing at a time. Dont be tempted to do everything then go run itcos if one thing is off you have no idea which thing it is. Do 1 thing then test ride it,then do another so if it does go wrong you can easily identify which part needs looked at.
I just get annoyed when you get someone coming on saying you can not get an a50 over 42-43mph no matter how you tune it (there were a few guys i read who said exactly this to newbies asking for advice a while back). No 2 scoots are the same too so with some i guess no matter how much you tune it it may not get there. Also frequent oil changes and generally how you upkeep and do general maintenence will make a huge difference to performance and lifespan.
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..both you guys are correct..tuning my 08 a50 to hit 50+ was a breeze..
..i've had a very difficult time with this 09 engine..it's just not the same...
..i even had comments on my youtube page claiming itsa fake!..lol..
..like streido says..change one thing at a time..
..frequent oil changes and valve adjustments and tire pressure checks..cant put a value on comprehensive preventive maintenance..
..another thing to remember is that changing things like a belt, or clutch/springs will require a "break-in" period, where you might still have to do some tweaking..
..i meant to post this pic here earlier...
..50 mph?..oh yes it can be done...with my 08 i was striving for 60...got there too! for a brief period, then backed it off a bit...
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..both you guys are correct..tuning my 08 a50 to hit 50+ was a breeze..
..i've had a very difficult time with this 09 engine..it's just not the same....
Luckily my A50 is an early 2008 model. Also bear in mind if you fit a race variator a longer belt can help top end more. That got me over 50 ;D
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makes it sound like I have over a half of live left out of her.
...keep those valves adjusted and your oil changed often...
;D
How often? I change mine every 2000 miles and use, Royal Purple Max-Cycle 10w-40. What oil are you using?
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it's winter here and I switched to motul scooter power 5W-40 full synthetic and it makes a difference. starts up right away, less time to warm up, easier revving and better mpg. changed at max 1.500 km. for me full synthetic oil in completely runned in engine is not an overkill. just made it run better