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Scooters - 50cc => Agility 50 => Topic started by: franx93 on April 25, 2009, 01:21:00 PM

Title: jet problem
Post by: franx93 on April 25, 2009, 01:21:00 PM
hello, i put in my agility R16 the main jet K82 as office manual. but at 55km/h it don't go over. But, if i close half of air hole (behind air filter) it goes up to 65km/h. is there any method to set the air without increase main jet?
thank you
Title: Re: jet problem
Post by: KymcoFan on June 29, 2009, 12:26:54 AM
Im having a similar problem I think we need to get a new air filter but im not sure noone wants to answer my question I had some asshole mock me on my post it was pretty crappy
Title: Re: jet problem
Post by: blue on June 29, 2009, 12:28:07 PM
mine runs rough only in cold weather ,I would like to learn how to lean out the gas on the carb.or add more.
Title: Re: jet problem
Post by: sticlistul on March 23, 2010, 04:29:23 PM
hello, i put in my agility R16 the main jet K82 as office manual. but at 55km/h it don't go over. But, if i close half of air hole (behind air filter) it goes up to 65km/h. is there any method to set the air without increase main jet?
thank you

I have same problem with those 55km\h but what does it mean "if i close half of air hole (behind air filter)" i would like to try it and see if speed increase ,but i don't know what franx want to say
Title: Re: jet problem
Post by: wordslinger on March 23, 2010, 04:35:27 PM
hello, i put in my agility R16 the main jet K82 as office manual. but at 55km/h it don't go over. But, if i close half of air hole (behind air filter) it goes up to 65km/h. is there any method to set the air without increase main jet?
thank you

..you really need to increase the main jet size...if you're blocking half of the air flow into the carb to make it run better, then your mixture is probably very lean, and you stand to damage your piston...
Title: Re: jet problem
Post by: wordslinger on March 23, 2010, 04:36:04 PM
Im having a similar problem I think we need to get a new air filter but im not sure noone wants to answer my question I had some asshole mock me on my post it was pretty crappy

..which post, or what is your question??
Title: Re: jet problem
Post by: sticlistul on March 23, 2010, 04:46:46 PM
..you really need to increase the main jet size...if you're blocking half of the air flow into the carb to make it run better, then your mixture is probably very lean, and you stand to damage your piston...

when you say blocking half of the air flow into the carb you refer at a small screw on the carb ? the one which needs to be at 2 and a half revolution?
Title: Re: jet problem
Post by: wordslinger on March 23, 2010, 04:50:46 PM
when you say blocking half of the air flow into the carb you refer at a small screw on the carb ? the one which needs to be at 2 and a half revolution?

..that screw is only for your idle and just off idle mixture...
Title: Re: jet problem
Post by: sticlistul on March 23, 2010, 04:58:22 PM
then how you block half of the air flow ? and from where ? franx says he blocked from behind the air filter ...i dont see nothing there ...
Title: Re: jet problem
Post by: wordslinger on March 23, 2010, 05:13:22 PM
...'m assuming he meant by taping over the hole that ports into the carb...i dunno...lol..
Title: Re: jet problem
Post by: Kimcofan on March 23, 2010, 05:30:16 PM
Hey what was that site you order your jets from wordslinger I am ordering my jet today and forgot the site?
Title: Re: jet problem
Post by: wordslinger on March 23, 2010, 05:50:24 PM
...i buy mine local....i think there's a site called Jets-r-us...or something like that....google that...
Title: Re: jet problem
Post by: Gravzy on March 23, 2010, 05:52:58 PM
i used SIP for mine was good quality and cheap :-)
Title: Re: jet problem
Post by: sticlistul on March 23, 2010, 05:53:22 PM
i am curious how I can block my air filter  to see if it works in my case .
Title: Re: jet problem
Post by: wordslinger on March 23, 2010, 05:59:29 PM
i am curious how I can block my air filter  to see if it works in my case .

....that's just not a good practice....but it may tell you if you're lean...
Title: Re: jet problem
Post by: joeboy on March 23, 2010, 06:03:20 PM
Instead of buying a bigger jet or blocking your air intake (which is simply bad practice and is like choking the motor) just lift your needle a little.
Title: Re: jet problem
Post by: sticlistul on March 23, 2010, 06:08:06 PM
Instead of buying a bigger jet or blocking your air intake (which is simply bad practice and is like choking the motor) just lift your needle a little.

i want to block the air intake just to see if thats the speed problem. what needle are you talking about? the main jet ?
Title: Re: jet problem
Post by: Shaka on March 23, 2010, 06:30:36 PM
It's the main jet needle.  Can't miss it!  The needle sticks out of the bottom of the slide and drops down into the main jet, controlling how much fuel flows past.  Blocking off the intake is really only for testing purposes, to see if the engine runs better with less air.  If it does that means that you need more fuel to mix in with "un-restricted air. 
Title: Re: jet problem
Post by: sticlistul on March 23, 2010, 06:45:51 PM
you can laugh guys :)) but i don't know where is that needle ,from the service manual i've saw that it is inside the carb, not on it .
What do you think guys , I should strangle the tube that connect air filter with carb , or open the air filter and cover half of filter ?
Title: Re: jet problem
Post by: Shaka on March 23, 2010, 09:28:07 PM
Yes, it is inside the carb.  You just have to take the cap off the top where the throttle cable goes in to access it.  It's about the easiest carb adjustment you can do.  You don't have to take the carb apart or even off the bike to get to it.  You can cover the air inlet and try it out, but it's not something you want to be riding around with for an extended period.
Title: Re: jet problem
Post by: joeboy on March 23, 2010, 09:42:42 PM
blocking the air off is the same as running the bike on choke, why dont you just disconnect the choke wires instead of messing with the airbox and waiting for the disaster of sucking something into the engine.
Title: Re: jet problem
Post by: sticlistul on March 24, 2010, 06:50:37 AM
Yes, it is inside the carb.  You just have to take the cap off the top where the throttle cable goes in to access it.  It's about the easiest carb adjustment you can do.  You don't have to take the carb apart or even off the bike to get to it.  You can cover the air inlet and try it out, but it's not something you want to be riding around with for an extended period.

You talk about this bolt from the picture ?
Title: Re: jet problem
Post by: sticlistul on March 24, 2010, 12:07:24 PM
I checked what franx say , I covered almoust a half of air filter paper with isolator band ,but i didn't feel to much speed 56 like that ...it may be the wind ,i'm not exactly sure , downhill it goes with 59 -60 , but i feel a loos of start power  and some vibrations  at 50 -55 km/h maybe I am paranoid  I don't know for sure ...
Title: Re: jet problem
Post by: Shaka on March 24, 2010, 10:47:29 PM
That carb is a different design than the one I was describing.  I think you have to take to top plate off where the round part is to access the needle.  Wordslinger may be a good person to consult on this one as he has raised his needle on that style carb.  Did you cover the filter element itself?  All you need to do is cover half of the opening that leads into the airbox. 
Title: Re: jet problem
Post by: wordslinger on March 25, 2010, 10:40:29 AM
...shaka, i reckon we found out that sticl's cdi had never been cut...gonna update today, he said in another topic...
Title: Re: jet problem
Post by: Shaka on March 26, 2010, 01:46:25 AM
I saw that.  That makes more sense anyways!