KymcoForum.com
Scooters - 50cc => Super 9 => Topic started by: superscoot on January 28, 2013, 06:45:44 PM
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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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That can be caused by an air leak into the intake I think...
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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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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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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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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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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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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
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..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...
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.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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.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 (http://www.ducatimeccanica.com/dellorto_guide/dellorto_3_4.html)
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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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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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lefty lean righty rich that dont go for all carbs tho
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Revival time. I need some help.
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Unless the Super 9 has a different carb than all the other Kymco 2t left is RICH right is LEAN!!!!! Don't confuse the guy!!!! If the Mixture screw is BETWEEN THE SLIDE AND THE INTAKE IT IS A FUEL MIX SCREW!!!!! If it is between the slide and airbox then it is an air screw. ALL the other Kymco 2t bike HAVE A FUEL MIXTURE SCREW!!!!!!!!! And I'm 99.9% sure the SUper 9 (even L/c) uses the same carb as the other kymco 2t. You should always step up the slow jet one size for using a kit, it needs more fuel on decel to not seize up, a #38-#40 should be perfect. Hanging idle is caused by lean conditions.