BuggyMasters.Com - An On Line Mini Buggy Forum and Go Kart Forum

Go Back   BuggyMasters.Com - An On Line Mini Buggy Forum and Go Kart Forum > Technical Discussions > 150cc GY6 and Under Engine Tech

150cc GY6 and Under Engine Tech GY6 and Smaller Technical Discussion Forum

 
 
Thread Tools
  #1  
Old 11-11-2020, 02:53 PM
Nathannewbie Nathannewbie is offline
Lurker
 

Join Date: Nov 2020
Posts: 1
Default Gy6 jetting.

Hi all, so I recently bought a go kart with a gy6 150cc motor in it. The carb was **** so I bought a new one of amazon. It ran fine on the top end and idled ok but it would bog out like being to rich on about 1/4-1/2 throttle. I tried a lot of different things, fast forward to today, as soon as I oiled the air filter the main was too rich so I tried smaller but that didn’t help so I pulled the diaphragm off and put the clip up two notches and now it runs even worse. It was on the bottom notch. I’m running a 105 main with a 34 pilot and it doesn’t want to run period. It’s so rich it isn’t even funny. But I thought the stock jetting for a gy6 was like 108 main so idk why it’s so bad.

Anyway, if anyone has any pointers on where to start that would be greatly appreciated. I also tried a 104 and 103 main which was just as bad.
Thanks so much,
Nathan
  #2  
Old 08-05-2022, 11:36 PM
gbnbrb123 gbnbrb123 is offline
Lurker
 

Join Date: Aug 2022
Posts: 1
Default

The main jet typically comes into play near 3/4 to max throttle. You would typically change the pilot jet to a smaller size if too rich. if you have an air mixture screw then you can play around with that by screwing in to lean the mixture, normally two turns out from all the way in.
 


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 11:22 AM.


Powered by vBulletin® Version 3.8.3
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.