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Author Topic: damn idle  (Read 2933 times)

superscoot

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damn idle
« on: January 28, 2013, 06:45:44 PM »
so i installed my new 70cc kit and having trouble with the idle...when i go for a ride then come to a stop it hangs at 3000rpm then drops down after a min or so...so im guessing would a larger pilot jet solve the issue? ive messed with the a/f its backed out at about 1/4 to 1 turn
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04 kymco super 9 ac
70cc malossi bbk
stock cdi
naraku 5.7 gram rollers
naraku 90 main jet
naraku 40 idle jet
naraku clutch bell
Naraku Variator
naraku 1500 contra spring
naraku 2000 clutch springs
malossi c/f reeds
malossi kevlar belt
leo vince exhaust

MotoRandy123

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Re: damn idle
« Reply #1 on: January 28, 2013, 08:17:32 PM »
That can be caused by an air leak into the intake I think...
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superscoot

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Re: damn idle
« Reply #2 on: January 28, 2013, 10:07:43 PM »
good thinking...ill have a look tomorrow, i doubt it is a leak tho as it sits and idles nice when started...its when i  take it out for a ride thats when i get the idle problems, i dunno worth a look rule out some issues cheers :)
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04 kymco super 9 ac
70cc malossi bbk
stock cdi
naraku 5.7 gram rollers
naraku 90 main jet
naraku 40 idle jet
naraku clutch bell
Naraku Variator
naraku 1500 contra spring
naraku 2000 clutch springs
malossi c/f reeds
malossi kevlar belt
leo vince exhaust

Peters

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Re: damn idle
« Reply #3 on: January 29, 2013, 05:58:16 AM »
On 2 strokes the exhaust side can pull in air as well. Soapy water in a squirt bottle can find any leaks. I'd check and make sure nothing is hanging up in the carb first though.

You still running the stock carb?
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*2010 People 50 2t with 70cc kit and more
*2001 ZX-50 beater

superscoot

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Re: damn idle
« Reply #4 on: January 29, 2013, 07:54:15 AM »
yeah still using stock carb for now..and now im also thinking a leak think i may know where its coming so ill check it out
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04 kymco super 9 ac
70cc malossi bbk
stock cdi
naraku 5.7 gram rollers
naraku 90 main jet
naraku 40 idle jet
naraku clutch bell
Naraku Variator
naraku 1500 contra spring
naraku 2000 clutch springs
malossi c/f reeds
malossi kevlar belt
leo vince exhaust

superscoot

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Re: damn idle
« Reply #5 on: January 29, 2013, 06:57:07 PM »
FIXED!!! no air leak, played with the a/f screw some more hangs just a little for a split second...waiting on a bigger pilot
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04 kymco super 9 ac
70cc malossi bbk
stock cdi
naraku 5.7 gram rollers
naraku 90 main jet
naraku 40 idle jet
naraku clutch bell
Naraku Variator
naraku 1500 contra spring
naraku 2000 clutch springs
malossi c/f reeds
malossi kevlar belt
leo vince exhaust

Superstu

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Re: damn idle
« Reply #6 on: January 29, 2013, 08:37:19 PM »
On super 9 which way riches up the a/f screw? I've seen a few condescending post.
I just want to know from a kymco owner.

stu

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superscoot

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Re: damn idle
« Reply #7 on: January 29, 2013, 10:55:35 PM »
turn it in richens it up and turn it out leans in out..remember to turn it 1/4 at a time :)

^^^^^^^^^^^^^^^^^^
RIGHT WAY :) thats on the stock carb
« Last Edit: February 13, 2013, 05:25:06 PM by superscoot »
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04 kymco super 9 ac
70cc malossi bbk
stock cdi
naraku 5.7 gram rollers
naraku 90 main jet
naraku 40 idle jet
naraku clutch bell
Naraku Variator
naraku 1500 contra spring
naraku 2000 clutch springs
malossi c/f reeds
malossi kevlar belt
leo vince exhaust

wordslinger

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Re: damn idle
« Reply #8 on: January 30, 2013, 11:22:22 PM »
..on the oem carb, turning the screw on the left clockwise, makes the fuel mix lean...


..rule of thumb, is that if the fuel mix screw is before the throttle adjusting screw, in the air-flow, then it adjusts air..opening will increase air...


..if the fuel mix screw is after the throttle, in the air-flow direction...then the screw adjusts fuel entry into the mix, so opening will increase fuel...
« Last Edit: January 30, 2013, 11:29:21 PM by wordslinger »
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thebatman

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Re: damn idle
« Reply #9 on: February 04, 2013, 01:01:10 PM »
.rule of thumb, is that if the fuel mix screw is before the throttle adjusting screw, in the air-flow, then it adjusts air..opening will increase air...

before?   pose to be a FUEl screw, not air
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Peters

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Re: damn idle
« Reply #10 on: February 05, 2013, 03:56:20 AM »
Quote from: thebatman on February 04, 2013, 01:01:10 PM
.rule of thumb, is that if the fuel mix screw is before the throttle adjusting screw, in the air-flow, then it adjusts air..opening will increase air...

before?   pose to be a FUEl screw, not air

Check this out
http://www.ducatimeccanica.com/dellorto_guide/dellorto_3_4.html
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*2010 People 50 2t with 70cc kit and more
*2001 ZX-50 beater

superscoot

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Re: damn idle
« Reply #11 on: February 09, 2013, 11:51:24 PM »
loads of diffrent information flying about it says here on the manaul turn the air screw (a/f) clockwise to richen the mixture or counter clockwise to lean the mixture like wtf so many different posts
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04 kymco super 9 ac
70cc malossi bbk
stock cdi
naraku 5.7 gram rollers
naraku 90 main jet
naraku 40 idle jet
naraku clutch bell
Naraku Variator
naraku 1500 contra spring
naraku 2000 clutch springs
malossi c/f reeds
malossi kevlar belt
leo vince exhaust

Peters

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Re: damn idle
« Reply #12 on: February 10, 2013, 12:34:20 AM »
Quote from: superscoot on February 09, 2013, 11:51:24 PM
loads of diffrent information flying about it says here on the manaul turn the air screw (a/f) clockwise to richen the mixture or counter clockwise to lean the mixture like wtf so many different posts

Your right... Why would we try to help somebody. What the hell is wrong with us.  ::)
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*2010 People 50 2t with 70cc kit and more
*2001 ZX-50 beater

superscoot

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Re: damn idle
« Reply #13 on: February 20, 2013, 05:14:29 PM »
lefty lean righty rich that dont go for all carbs tho
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04 kymco super 9 ac
70cc malossi bbk
stock cdi
naraku 5.7 gram rollers
naraku 90 main jet
naraku 40 idle jet
naraku clutch bell
Naraku Variator
naraku 1500 contra spring
naraku 2000 clutch springs
malossi c/f reeds
malossi kevlar belt
leo vince exhaust

TheAmishSasquatch

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Re: damn idle
« Reply #14 on: November 13, 2014, 06:45:06 PM »
Revival time. I need some help.
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