49cc scooter carb issues


Old 10-18-08, 12:34 PM
kattsilver's Avatar
Thread Starter
Join Date: May 2008
Posts: 7
Received 0 Votes on 0 Posts
49cc scooter carb issues

This is my first post so please help me (even if I violate the rules:let me know). I have a generic 49cc stand up gas scooter (MY ONLY FORM OF XPORT) that I recently rebuilt the carb, and I need to know if the needle that goes from the linkage through the barrel to a jet is adjustable. Without thinking (I am an experienced lawn service mech) but I havent had too much exp. with this type of carb. The carb is a ruixing and I cant find a diagram or any rebuild info, it doesn't come with the kit (GO FIGURE). The symptoms are: hard cold start,even with choke,(occasionally NO start), good acceleration but no top end.(never seems to get enough to wind out). Also seems to occasionally surge like it finally got the right mix. This carb has only 1 obvious adj. and then this needle that could be adjusted. Please if anyone can help I need a diagram or just to know how to start adjusting this needle.

Sponsored Links
Old 10-18-08, 08:33 PM
cheese's Avatar
Forum Topic Moderator
Join Date: Jul 2001
Location: USA
Posts: 17,430
Received 32 Votes on 27 Posts
Is this one of the chinese scooters that you could buy for $250? I have a pawn shop that is a customer of mine, and they used to carry those. I messed with some, and found the best thing to do is stick a new carb on it. They are dirt cheap to replace and you can spend a lot of time trying to fix the old carbs, which don't seem to ever want to work right once they act up.
Old 10-19-08, 03:45 PM
30yearTech's Avatar
Join Date: Oct 2006
Location: Central Texas
Posts: 1,176
Received 0 Votes on 0 Posts
Not familiar with the carburetor your describing, but many slide valve carburetors have little notches in the needle with a small "E" clip on them. If yours has this, then moving the clip higher on the needle will lean out the mixture, and lowering it will make the mixture richer.

Best of Luck....
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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Ask a Question
Question Title: