|
|
Post by geh3333 on Apr 22, 2015 20:57:44 GMT -5
You say you can not drop the idle below 2k . your throttle cable may be too tight . you can adjust this at the carb, where the throttle cable attaches to it . the butterfly still may have room to close with the screw out , which would mean the throttle cable is too tight.
|
|
|
|
Post by lain on Apr 22, 2015 21:13:45 GMT -5
You say you can not drop the idle below 2k . your throttle cable may be too tight . you can adjust this at the carb, where the throttle cable attaches to it . the butterfly still may have room to close with the screw out , which would mean the throttle cable is too tight. Already checked that. It's not tight, it has the normal slack and everything. |
|
|
|
Post by geh3333 on Apr 22, 2015 21:21:43 GMT -5
You say you can not drop the idle below 2k . your throttle cable may be too tight . you can adjust this at the carb, where the throttle cable attaches to it . the butterfly still may have room to close with the screw out , which would mean the throttle cable is too tight. Already checked that. It's not tight, it has the normal slack and everything. Your scoot should not be able to idle with a completely closed butterfly. Have you checked to see if it was stuck ? |
|
|
|
Post by lain on Apr 22, 2015 21:38:26 GMT -5
Already checked that. It's not tight, it has the normal slack and everything. Your scoot should not be able to idle with a completely closed butterfly. Have you checked to see if it was stuck ? It has happened before. I did not check to see if the butterfly was stuck, I just checked the throttle by tugging on it with my hand under the body. I'll have to check in the morning but I have removed the idle screw before and it would still idle. What would allow it to keep idling? |
|
|
|
Post by geh3333 on Apr 22, 2015 21:47:05 GMT -5
I would expect a stuck butterfly that's not closing fully . if its stuck , you'll have to find out why its sticking . a closed butterfly should cut off pretty much all air supply . how far open is the air fuel screw ? Somehow you are still getting enough air and fuel into the chamber to allow the scoot to idle at 2000 rpms.
|
|
|
|
Post by lain on Apr 22, 2015 21:55:03 GMT -5
I would expect a stuck butterfly that's not closing fully . if its stuck , you'll have to find out why its sticking . a closed butterfly should cut off pretty much all air supply . how far open is the air fuel screw ? Somehow you are still getting enough air and fuel into the chamber to allow the scoot to idle at 2000 rpms. My a/f screw is pretty far in. I readjusted it after I installed the #  main jet. If I adjust it further rich it becomes too rich. |
|
|
|
Post by geh3333 on Apr 22, 2015 22:23:35 GMT -5
I would expect a stuck butterfly that's not closing fully . if its stuck , you'll have to find out why its sticking . a closed butterfly should cut off pretty much all air supply . how far open is the air fuel screw ? Somehow you are still getting enough air and fuel into the chamber to allow the scoot to idle at 2000 rpms. My a/f screw is pretty far in. I readjusted it after I installed the # main jet. If I adjust it further rich it becomes too rich. I would say , first check the butterfly , then TBA I believe you may be able to go down a jet size. With my 125 main , my air fuel screw is about 1/2 way out. If your butterfly is completely closed , then somehow enough air is getting through the carb and is able to pull enough fuel with it to be idling at 2000 rpms. I know they say the pilot is for idle , but I've read so many posts where someone changes the main and they can get the scoot to idle right. What size pilot ? |
|
main jet. If I adjust it further rich it becomes too rich.