KymcoForum.com
Scooters - 50cc => Agility 50 => Topic started by: Scooter Russ on August 27, 2012, 02:17:50 PM
-
Ok guys, after 8 months of tinkering with my basket case purchase 08 Agility 50. I finally got it put back together & running. Found out after all the testing I did to electrical system that CDI was bad. I've given the scoot a few updates, new paint job, L.E.D. turn signals, K&N air filter, bigger carb jet, bar end mirrors & performance CDI. Going to open up exhaust in next few days, with new muffle!
Scooter starts and idles great. The main issue with scooter is, when I'm riding scoot and try to go to full throttle, engine boggs down & doesn't want to pull itself!!!! So It's some type of carb issue. I'm Just not for sure what though.
NEED HELP PLEASE!!!!
Thanks Russ
-
sounds like with the k and n it needs re jetting, should be 90 or 95 some wher round there but every scoot is diffrent. keep trying
-
Agree with Skippy, it sounds like a main jet problem, either too small or too large.
What size jet you got in it now?
Did you do a plug chop to see if its running rich or lean? Thats a must do in case youre running lean cos you'll melt the engine if its way lean :o
I run a 92 and thats perfect for my scoot.
Does it always happen or just in the wet? Mine ran great till the 1st run in the wet, filter got wet and air couldnt get thro so it ran way rich and couldnt go past 3/4 throttle. If it runs fine up to 3/4 throttle its def rich or lean cos at 3/4 throttle is when the main jet kicks in.
-
Skippy, I rejetted carb! Couldn't find a sutible jet at time of install and carb overhaul. So I just drilled out my old jet a few sizes bigger with numbered drill bits. Could I have taken it to large & have same problem with running issue? Just putting to much fuel to engine? Instead of not enough?
-
..in my experience, when the scoot seems to bog down at WOT, it's an indicaton of a rich mix...main jet too large...
..just to throw this out there, an aftermarket exhaust generally doesn't lend much to performance on a 4t scoot..
..plug chops will tell...my scoot is happy with a 101, so you see how every one IS different...
-
if you drilled out your jet how big did you drill and did you have it in a pilladrill as if by hand it will be allover the place...
best bet is to buy 3 or 4 jets try a range of 90 95 100 etc see where it getts better keep the chop changes again better results with new clean plugs. you will find when the set up is close.
have a look in the serch section for plug chops etc to see how rich it is buy colour
-
if you drilled out your jet how big did you drill and did you have it in a pilladrill as if by hand it will be allover the place...
best bet is to buy 3 or 4 jets try a range of 90 95 100 etc see where it getts better keep the chop changes again better results with new clean plugs. you will find when the set up is close.
have a look in the serch section for plug chops etc to see how rich it is buy colour
Youre getting good at this Skippy. You almost sound like you know what youre talking about these days :-*
-
well what can i say.... trained by the best forum lol never wanted a bike let alone scooter. always a car bloke was stripping engines down at 17. etc but fell on hard times mx5 had to go as no point in two cars insurance etc. just an impuls to get scoot. also thought it be fun to strip and rebulid with my son, give him a good footing when he gets a scoot. but he to lazey. well now i got the scooter bug. ever trip to work now is fun.
-
Yes Skippy I did just use a small hand needle drill. So it's quite possible I took it to large. But, I was having the same sort of issue before I cleaned carb & drilled jet out.
-
..but what was the drill size??
..we're only talking about a few hundredths of a millimeter....
-
PLUG CHOPS :)
Cant tell anything till you see if its rich or lean then you can take it from there Russ.
-
if its a older scoot I would just get a new carb and buy a few jets to try from 90 to 95.
-
All I can tell you guys is drill size of jet before I started was .0435 in. Drill size I took it to was .0485 in. hundredths of an inch. Haven't had a chance to pull plug & check color & see if it's rich or lean.
-
...well, that's about a 123, so its really rich, bro....
-
do the chop first but id guess if it was the same befor the rejet its too lean
-
..even a .0435" will be a 1.11mm if hand drilled...
..or a '111'..
-
..probably had to run the idle mix screw way in to get it to idle...
..i'm just sayin...
..probably need no larger than a .037" drill bit...
-
Ok I'll pick up so new jet & go from there......
-
..if you have a smaller drill, saay a .038 you can solder that jet, then re-drill...
-
Ok just took scoot for a quick ride to run a delivery to a customer. At WOT I can hear carb spitting back thru air cleaner. So jet must be to big!
-
..that's exactly right...
-
No I've done screwed up one jet I'm not gonna try to resolder it & then redrill it. I'll just pick up a few larger jets & take it from there.
-
..gotta be careful not to get solder on the threads...lol..i did that a cpl times...
..recovered from it once, second time was a hot mess!!
-
Well wordslinger I can solder like nobodies business. sh** man I can solder the old brass fuel tank floats back together when they crack & start leaking. So I may take a crack at this then.
-
..it's either solder and dril...
..or order and wait.....and wait.......
:-\
-
..i just put the jet, threads up, on a hotplate....
..get the element good and red...
..touch the solder to the inside of the jet..cpl times...
..lift it off the plate with a pair of insulated needle nose...
..douse it with a lil water....
..sometimes i tap the jet on the element to assure the solder has went thru..
..some solder primer assists, but isn't a requirement...
-
..oh, i failed to mention that this takes a fairly steady hand, ssso...
..a cpl 24s are helpful in preparation for this task...
;D
-
LOL!!! Like your prep method..... I'll be sure to do a couple of 12oz. curls before I start.
-
..well then you are well on your way russ!!
;)
-
I was scared to death of the thought of drilling out jets myself.
Just jump right on in there. It's not that bad. Dam sure beats....waiting....and waiting....
BTW, And HELL YES, that jet would be nasty big...
I was running a "90" in mine, now she is at a "87-8"?
I tried going the size of words and that was not working.....lol
-
..i dunno why, whether its the 'piedmont" elevation, temp..whatever..
..i always need a larger than norm jet...maybe its just me, but that .0435" would be rrrich no matter what mods imma doin...
-
..i always need a larger than norm jet...maybe its just me, but that .0435" would be rrrich no matter what mods imma doin...
I know that's right.. I gotta have a bigger one myself.
I should have to have the biggest out of anybody being at 2225ft...(above sea level.
-
you can buy jets in a set of 3 I would just play it safe and buy the jets. And if you can get a bigger carb mine is the 19mm carb they do make a 20 I herd works well on the agilty. it gives you better take off and the top end gets there fast.
-
..a 20mm carb will work well...
...might even benefit from a pipe then....
-
..a 20mm carb will work well...
MMMM, 20mm........ ;)
-
Holy jets Batman! You all good again and back on track after all that hassle you had? Got things on the up now?
-
Holy jets Batman! You all good again and back on track after all that hassle you had? Got things on the up now?
WHO ME.................
-
OK so I've got a customer that works on these scoots for a living in my area. He brought me another complete carb last night. I'm gonna check jet size in it before I put it on just to get scoot running somewhat right for now. Then the jet in my kymco carb I'll solder it back up & redrill it out one step at a time till I get jetting just right.
-
OK so I've got a customer that works on these scoots for a living in my area. He brought me another complete carb last night. I'm gonna check jet size in it before I put it on just to get scoot running somewhat right for now. Then the jet in my kymco carb I'll solder it back up & redrill it out one step at a time till I get jetting just right.
I woulden evevn mess with drilling and soldering.just get a few dif size jets there only a few coins.
-
WHO ME.................
Nope, BATMAN. Youre called Blue ;D
-
Blue money is tight right now at my house. So since money short! We don't do much extra outside stuff. So I got plenty of free time on my hands to take my time with soldering & drilling main jet.
-
Blue money is tight right now at my house. So since money short! We don't do much extra outside stuff. So I got plenty of free time on my hands to take my time with soldering & drilling main jet.
Understand that things are tough all over I try to get away cheap to if I can most of my parts this year I got from off used scoots.( craigslist) some things I trade other parts for parts.
-
THANKS FOR ALL THE HELP GUYS!!!! IT'S GREATLY APPRECIATE ALL THE INFO....
-
Ok guys I put on another carb that had no modification to main jet or metering rod. Scooter still run same way if not worse! before it would pull itself to at 30 mph. Now it barely will hit 25. Still have K&N filter on it. Could I still not be jetted big enough?????
-
Ok guys I put on another carb that had no modification to main jet or metering rod. Scooter still run same way if not worse! before it would pull itself to at 30 mph. Now it barely will hit 25. Still have K&N filter on it. Could I still not be jetted big enough?????
With the K&N you will prob need AT LEAST a 90 main jet so if its still got the 82/80 stock jet it wont ever run good and would run worse. If you still got the stock air box stick that back on and try it with the 80/82 jet and see if that works. If it does then its def the main jet is not matched to the k&N.
Or.......tape over about half of the open filter and this reduces the air in so it matches the jet you have in. If that works or if it runs better then again you know the main jet is too small for the filter. Take more tape off or put more on up to about 3/4 of the filter and if it works better then the main jet is def too small and thats is the problem.
-
Ok my scooter guy that lives in my area said try stock air box as well Streido. I don't have one since I bought scoot used and it was missing. He brought me a used one he had laying around for me to try. He said pretty much bone stock scoots don't want to well with open filter.
-
Ok my scooter guy that lives in my area said try stock air box as well Streido. I don't have one since I bought scoot used and it was missing. He brought me a used one he had laying around for me to try. He said pretty much bone stock scoots don't want to well with open filter.
Well i dont know about that, if the jetting is correct then they should work ok :-\
You can still try put some tape over some of the open filter 1st if you find that easier. If it runs better its got too much air for the jet in the carb so just upjet. I had an 88 jet in and needed to cover 2/3 of the filter with tape to get it to work, with a 92 jet it works fine and is about perfect with no tape needed now.
-
Ok Streido I'll try that! I just want to get scooter running..... I've been missing with it almost a year getting it back up and in good condition.
-
Ok guys I still have the same problem! I've switched carb out for stock one. Put on original air box. Still sounds like it's spitting back thru carb. I have a stupid question? What is all the sh** inside the spark plug cap? There's a brass screw piece if you remove it a spring & a little aluminum part come out! I took the aluminum part out because it causes resistance in plug wire. Since I took that out could it be causing spark signal to break down & cause loss of spark under load when riding?
-
Could well be the problem, i never took it apart so cant really say what the bits inside are for. They must be there for a reason tho :-\
Stick em back in and see what happens.
-
Gonna try that whenever it quits raining here. Three days of so far cuz out hurricane Isaac.