KymcoForum.com
Scooters - 50cc => Agility 50 => Topic started by: Matty on April 20, 2012, 07:07:59 PM
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Hi folks
Can anyone tell me if the below is a CDI that has been cut, or not?
Also is it possible that an incorrectly cut CDI can result in a slight loss of power
(http://i68.photobucket.com/albums/i24/mattyuk_2006/P1010752.jpg)
(http://i68.photobucket.com/albums/i24/mattyuk_2006/P1010750.jpg)
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..looks like its been cut and epoxied over. .
..but no, cutting cdi incorrectly is virtually impossible, and will not result in rpm loss...
peace
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that looks toasted.what happen
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that looks toasted.what happen
are you sure thats not yours blue? with your track record it could be ;D
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are you sure thats not yours blue? with your track record it could be ;D
HAY not nice.......LOL Im on a good track now. my scoot is doing relly good as long as I keep my hands off it. my last mod was to turn it in to a low rider. smaller shock.
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thanks guys. blue it works fine, i'm just trying to work out if it has been cut or not - can anyone answer for sure?
I still have very average performance on my scoot so I'm just trying to identify the cause. But from what wordslinger has said (thanks wordslinger), it's unlikely to be my cdi that is the problem.
Back to randomly replacing everything I guess....
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Try replacing the CDI and see the difference in performance.
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..do you have a restricted drive boss?..if so, that should be the first thing you randomly swap...lol..
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Back to your question the cdi dont look like its been cut.if so there would be a notch cut out on the end wear it looks burned.
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Back to your question the cdi dont look like its been cut.if so there would be a notch cut out on the end wear it looks burned.
from the look of the pic it has had the ordinary hacksaw treatment, i can see were the cut is from the pic. i could even opint out where it has been cut.....if you wanted
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...it is visible, and i wonder if the cut is deep enough...
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thanks whitenight.
yes i think you're right there does seem to be a cut line amongst the epoxy. will go check on the thing itself. I do get 40mph out of it (on the speedo at least) so I think the cut has been done correctly. I just have poor acceleration.
i have a derestricted drive boss.
valve clearance is normal.
I think compression might be the problem. i have a compression tester but annoyingly it wont fit in the hole in the agility due to constrained space.
incidentally idle mixture screw seems to have no effect however it's turned and the thing loves to idle low and cut out. Idon't know if that is symptomatic of a general fuel line problem which might be causing my generally poor power (in particular acceleration)
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....
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...valve clearance is .04mm...just throwing that out there...
..you should be gettin a bit better than 40, with cdi and boss...
..
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First it was cut not burned. The epoxy is peaky from application.
Second cutting the cdi does nothing for performance. I will only allow the engine to rev to it's peak.
Third it sounds like your idle jet or mix port is clogged. Start by disassembling the carb, and cleaning everything.
Lastly the cdi was cut/epoxied to protect it by Yolanda Greene. She lives in New Jersey.
150cc GY6 Carburetor (http://www.youtube.com/watch?v=YrJQ8AX_2OM#ws)
This guy is on Oxy's or Something but it covers the basics
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This guy is on Oxy's or Something but it covers the basics
hmm yokel mechanics. i like the way he was expecting there to be grass inside his carb bowl!?!? how the f*ck would grass get in there in the first place?? still showed me the basic anatomy of a carb.
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Thanks zombie
I've had that carb apart more times than I care to mention - it's clean as a whistle in there.
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You could tell that's not a burn on that cdi.......
Just trying to cover it up.. Must b worried about getting wet..
One of the post seems like it's time for some cvt work. ;)
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thanks guys. blue it works fine, i'm just trying to work out if it has been cut or not - can anyone answer for sure?
I still have very average performance on my scoot so I'm just trying to identify the cause. But from what wordslinger has said (thanks wordslinger), it's unlikely to be my cdi that is the problem.
Back to randomly replacing everything I guess....
When i've experienced lack of power it was because of one of 2 things:
- Improper ignition, caused by carb adjustment (adjust it once, and it will not be necercary to readjust very often, as only air temperature and preassure is varables of the air's amount of O2) or caused by improper spark, which is more likely to fail at some point. :)
- Wrong roller weight or wear, as wear on the rollers will give more area of touching the varator (i'll skip the physics today), which will do the same as having a too heavy roller weight. :)
I just changed my rollers yesterday, as i was experiencing the last one, and i say that fresh rollers makes a diffrence. You can use Dr. Pulley rollers to reduce this factor, as these will not change their area of touch when they wear. :D
If the spark may be the problem, i will propose that you change into a higher voltage ignition coil (like Naraku High Tension) and an iridium spark plug (like NRK CR7HIX) as these two will give much greater spark. :D If the spark is troubling it could also be caused by a flat or collapsed battery, as we use a DC CDI. :)
I have never tested my own compression, so unfortunately i cant say if this can be the problem. :)
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thanks baddi
I was trying to flush out the problem this weekend so put in brand new rollers (6g) and brand new good quality belt.
No improvement. In fact I guess stock must be 6.5g as I'm now revving higher earlier with no additional acceleration/power.
carb adjustment...i have an #82 jet, but must admit have never adjusted the float height. Didn't really understand the physics behind it but maybe should check.
Battery is new and fully charged, and spark plug is new, plus I replaced the ht lead less than 6 months ago so I don't think ignition is the problem.
That said every time I change the spark plug it is black black black, covered in carbon which is interesting. I change it nearly once every 2 months!
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thanks baddi
I was trying to flush out the problem this weekend so put in brand new rollers (6g) and brand new good quality belt.
No improvement. In fact I guess stock must be 6.5g as I'm not revving higher earlier with no additional acceleration/power.
carb adjustment...i have an #82 jet, but must admit have never adjusted the float height. Didn't really understand the physics behind it but maybe should check.
Battery is new and fully charged, and spark plug is new, plus I replaced the ht lead less than 6 months ago so I don't think ignition is the problem.
That said every time I change the spark plug it is black black black, covered in carbon which is interesting. I change it nearly once every 2 months!
Now i don't want to get into an argument on stock parts, their funtions and the importance of their forces, with the guys from other countries again, so ill stick to what i've measured myself.
I've been told many times by other danes, that the roller weight is 7g here in Denmark, to be able to gear out at the rpm which the CDI are restricted to, so here a couple of days i measured some rollers. Unfortunately i haven't got any new stock rollers, so i measured some old worn down ones, where the weight said that 3 rollers weighed 19g (on a kichen scale, only shows whole grams), which suggest that the rollers are 6,5 or 7g as stock. :)
I've had most luck with 6g and 6,5g rollers where the 6,5g was achieved by mixing 7 and 6g rollers. This is approximately the same as having 6 6,5g rollers, but have one disadvantage: The heavier rollers will push at a higher force, being worn down easylier, as seen on the picture below, where the stock rollers in the bottom have driven 3000 km, where 1500 where mixed rollers, and the malossi roller on top have driven 4000, where 1500 where mixed rollers.
About the spark plug being black all the time, i have the same problem, but streido came with a possible solution:
As a general rule its a 80 jet stock, 82 jet deslrestricted, and 88 for an open air filter but im sure you prob know that most scoots vary slightly?
I dont swap my jets for winter here in Scotland, maybe i should?. I just run the 82 all yr on mine?
Comes out ok on plug for me no leaness or richness, tho its always a little slower in the cold or wet, 3-5mph sometimes.
Had a similair issue a while back where i couldnt get the plug right, was way too rich then added more air in and got better but still had a sooty plug a bit. Found out eventually i had slighlty too much engine oil in cos i filled it on a slope, drained a little off and refitted the 82 jet put back on my stock air box and it was perfect again.
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You checked your air filter is clean?
Also according to Kymco UK tech Dept the stock weight from the factory is 6.5g, i emailed them just after i got my a50 as it was 2nd hand and needed a service but i didnt know the roller weight i needed to order and hadnt found this forum yet.
It may of course be different in other countries, this was only Kymco UK. I would imagine its the same tho worldwide.
And check inside the bottom of the air filter casing for a build up of oil like fluid, if its there and gotten onto the filter it will restrict airflow, if its bad enough.
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You checked your air filter is clean?
Also according to Kymco UK tech Dept the stock weight from the factory is 6.5g, i emailed them just after i got my a50 as it was 2nd hand and needed a service but i didnt know the roller weight i needed to order and hadnt found this forum yet.
It may of course be different in other countries, this was only Kymco UK. I would imagine its the same tho worldwide.
And check inside the bottom of the air filter casing for a build up of oil like fluid, if its there and gotten onto the filter it will restrict airflow, if its bad enough.
Sounds about right, when my worn down rollers where 6,3g each :D. :)
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Thanks streido/baddy.
have ordered some 6.6g roller (couldn't find 6.5) so will see how I do with that.
One typo in my last post - I'm NOW (not "not") revving higher earlier with no increase in acceleration.
Oil filter is clean. Oil level is correct (0.7l on refill)
Could worn clutch plates be doing this? It's only done 7000km.
I figure it's either worn clutch plates or poor compression. It seems to burn through oil quite quickly and I may have let it run dry as a consequence on one occasion....
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I figure it's either worn clutch plates or poor compression. It seems to burn through oil quite quickly and I may have let it run dry as a consequence on one occasion....
yea always keep a check on the oil, the Ag's are known for using the oil up quickly. buti have never found out why they do?? actually hold on..............now on google.............nope cant find anything, the only thing i got took me back to a post MrKymco made about oil.
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It sounds like a worn belt maybe? Is the belt slipping when pulling away from stopped? High revs and going nowhere fast?
If its the original belt still fitted it may be worn beyond its tollerance? Have a look and check its condition. Could be a worn clutch too tho like you said so check that when your in there.
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i do have a problem though, when i goto pull away the bike will go vrooooom but suddenly drop and bog down then take the piss by taking a age picking up speed hesitating all the way to 30.
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...what's your cvt setup, whiteknight?
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yea always keep a check on the oil, the Ag's are known for using the oil up quickly. buti have never found out why they do?? actually hold on..............now on google.............nope cant find anything, the only thing i got took me back to a post MrKymco made about oil.
I think it might be because the tube from the valve cover leads it to the air filter, where it because of venturi effect is sucked up into the air flow to lubricate the engine from the ignition side of the piston. :D
But just a guess. ;)
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...the rubber "PCV" effect tube, attached to the valve cover does indeed go to the oem airbox...
..just opposite of where it enters, there is a clear tube, that routes beneath the aibox toward the rear..
..the venturi effect does "draw" oil vapor from the valve cover, and the vapor condenses in this space between the two tubes...
..that oil should be drained from the clear tubing periodically...
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...the rubber "PCV" effect tube, attached to the valve cover does indeed go to the oem airbox...
..just opposite of where it enters, there is a clear tube, that routes beneath the aibox toward the rear..
..the venturi effect does "draw" oil vapor from the valve cover, and the vapor condenses in this space between the two tubes...
..that oil should be drained from the clear tubing periodically...
Yeah but the oily stuff still also collects in our stock airbox, mine on the back bottom corner. Dont know if its linked to these tubes? I just asumed it was vapour from the engine oil that returned thro the carb, into the thro the air intake pipe to the filter box and was condensing?
I noticed when ive been jetting that once you stop if you remove the carb then oil vapour comes out the manifold when its just been run and stopped.
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...there shouldn be any oil from the carb intake, but theres gasoline vapor that get's dopplered out and condenses, with some of the oil vapor from tubing...
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...there shouldn be any oil from the carb intake, but theres gasoline vapor that get's dopplered out and condenses, with some of the oil vapor from tubing...
Oil? Did i say oil? I meant gas :-[
Yeah thats all it is im sure.
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vapour comes out the manifold when its just been run and stopped.
..there's a link here somewhere that shows an awesome demonstration of how theres a vapor cloud there while its running...
..cant find itt....
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...what's your cvt setup, whiteknight?
racing variator (cant remember the weights i used) 1500rpm clutch spring smooth drive boss and a racing cdi.
I think it might be because the tube from the valve cover leads it to the air filter, where it because of venturi effect is sucked up into the air flow to lubricate the engine from the ignition side of the piston. :D
But just a guess. ;)
FU*K!! i know what tube your on about!! that lil bastid came off and was rubbing and got chewed by the rear wheel. i did post quite a while about it and i knew it came from the head of the engine, i just tucked it up so it didnt get chewed anymore.
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...how old is your belt?
..i've been running with that tube tucked for 3 years..it's what you do, when runnin k&n filter...don't sweat it...
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...how old is your belt?
..i've been running with that tube tucked for 3 years..it's what you do, when runnin k&n filter...don't sweat it...
my belt?? ermmm well... nearing 14,000
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...could be an issue...wouldnt hurt if you replaced it...wouldnt hurt at all!!
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my belt?? ermmm well... nearing 14,000
Dam that a lot of miles.... :o
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...think hes sayin kms...still, thatsa lot...
..especially with race vari anda 1500 contra...
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...think hes sayin kms
DE-DE-DEEE...Guess your right on that one.... ::)
WE measure that over here... :D
14,000Kms come to like 8700miles
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...the rubber "PCV" effect tube, attached to the valve cover does indeed go to the oem airbox...
..just opposite of where it enters, there is a clear tube, that routes beneath the aibox toward the rear..
..the venturi effect does "draw" oil vapor from the valve cover, and the vapor condenses in this space between the two tubes...
..that oil should be drained from the clear tubing periodically...
Here is the hole witch goes down to the pvc tube from the valve cover. Beneath it is a sponge, and the oily stuff from the valve cover is collected here and then sucked up into the air stream, where it will lubricate the engine and valves from the combustion side. :)
Problably prolongs engine life or something. :D
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...think hes sayin kms
DE-DE-DEEE...Guess your right on that one.... ::)
WE measure that over here... :D
14,000Kms come to like 8700miles
im not sure but i think my odometer is reading miles. so i think i have done 14,000 miles. i would be checking everything but it seems that i work, work, work then speand a hell of a lot of time sleeping.
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That's Crazy... Most scoots here read KM's. Backwards shipping.
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im not sure but i think my odometer is reading miles. so i think i have done 14,000 miles. i would be checking everything but it seems that i work, work, work then speand a hell of a lot of time sleeping.
The standart is that it is measured in Km, as this is the international standart and because it is what engeneers uses the most. :D
In my manual it sais odometer and speedometer in km, and then that they as a kind of service for you guys have written mph on the speedometer too. :)
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I hope that's true for all Kymco models, the Km I mean, as standard on the odo, and as Baddi said "as a service to you guys, written mph on the speedo too"
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well im not entirely sure if it is miles or kilometers. but i thought it was miles because i did use it to see how far the journey was to work. i know from signs it says "watton 8 miles" and the odometer says the same by the time i get to work, i will have a look on my next journey to make sure. i have had the bike afew years now.
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Its KM on my UK a50 it goes with the main speedo markings which are in Km/h, the mph markings on the speedo are secondary markings for us who dont like to modernise to km. I prefer mph anyday, it makes more sense to me, i can imagine a distance in miles but when someone says km's or km/h i need to use a convertor to work out how far or how fast they mean in REAL measurements of miles and mph ;)
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Its KM on my UK a50 it goes with the main speedo markings which are in Km/h, the mph markings on the speedo are secondary markings for us who dont like to modernise to km. I prefer mph anyday, it makes more sense to me, i can imagine a distance in miles but when someone says km's or km/h i need to use a convertor to work out how far or how fast they mean in REAL measurements of miles and mph ;)
And then there are us, who are used to the "modern" measurements (which is not only modern, but is what all of our physics and understanding of the world are based on), and will have to use a converter to use miles and miles per hour. :p
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Yeah but i still like vinyl L.P's instead of mp3's, proper books and newspapers instead of e-papers and e-books and F.M radio over DAB ;D
Miles where there before KM, ALL our road signs are in miles, ALL our speed signs are in MPH so i'll stick with them.
Why change something if it works?
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Yeah but i still like vinyl L.P's instead of mp3's, proper books and newspapers instead of e-papers and e-books and F.M radio over DAB ;D
Miles where there before KM, ALL our road signs are in miles, ALL our speed signs are in MPH so i'll stick with them.
Why change something if it works?
Of course you do. MP3's would take 8 times as much space, if they were the same quality as L.P's. Also, CD's cant have as much tracks on it, if they were L.P quality, and since most MP3's are ripped from CD's, the only way to get L.P quality music is directly from the producer. :D
Also, only the very best (and very expensive) e-papers and e-books will give the same result in light as a normal book in a properly lighted room, and for this reason, close to none of us have seen e-papers or e-books as good as the normal kind.
So why change it if it works, you say? Because its cheaper to manufacture, saves resources, and are easier to destribute, which will end up distributing mediocre things to everybody, and the mediocre will be improved, and then we, as a kulture and race has evolved. :)
And btw, km and miles was on the same time, along with a thousand other measurements, according on which village you went to. When most villages were united by roads and trading routes, some kind of standart was necerssary. Some places, this standart ended up as km and some places as miles. As time goes by, the standarts had to change from national to international standarts, and here came the S.I. (Standart Index) which is all the global standarts linked together by the measurement of force, Newton. :D
I'm sorry for the history lesson, but i hope to have illuminated your minds. :)
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How do you type applause! Every time I try I come out with the sound of one hand clapping!
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clap clap clap clap clap clap clap clap clap clap clap clap clap clap clap clap clap clap clap clap clap clap to baddi!!!!
Thank you very much. But I still would prefer oil on canvass on my walls instead of a f*c"n computer print-out or lcd frame, prefer ribs smoked on hickory (aaah... love charcoal!) rather than radiowaves from the microwave oven, love my Rolex than the digital Casio, love my 5 speed manual tranny than my tiptronic, love the decade old GY6 than the new MY1016 electric scooter motor, and the list goes on....
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Baddi, you sure your not related to Axy? :D
Lol, only kidding ;D
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Yes! Axy! http://us.123rf.com/400wm/400/400/antonbrand/antonbrand1104/antonbrand110400090/9290104-cartoon-lumberjack-holding-an-axe-isolated-on-white.jpg (http://us.123rf.com/400wm/400/400/antonbrand/antonbrand1104/antonbrand110400090/9290104-cartoon-lumberjack-holding-an-axe-isolated-on-white.jpg)
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Baddi, you sure your not related to Axy? :D
Lol, only kidding ;D
Perhaps.... My father was a bad boy xD