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Carb adj
by: ms21117 - Apr 1, 2013 4:23:24 GMT -5
Post by ms21117 on Apr 1, 2013 4:23:24 GMT -5
I have a 1p39qmb tao tao...having problems keeping it started..it's a 2011 w/ 4,000 miles on it (I just got it to fix up)..I put a new card on and.I think I screwed up the low speed air/fuel mixture screw setting....if I wanted to start from scratch...lets say with the screw all the way in...where would I go from there?
Also...it the same carb used for a 50 cc and 60 cc? Mine is a 60 cc..
Thanks!!
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Carb adj
by: gatekeeper - Apr 1, 2013 4:57:56 GMT -5
Post by gatekeeper on Apr 1, 2013 4:57:56 GMT -5
Turn the screw out 2 1/2 turns. That is a good starting point.
The 139qmb motor comes standard with an 18mm carb. 50cc or 60cc doesn't matter.
With 4000 miles I would be doing a valve adjustment.
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by: ms21117 - Apr 1, 2013 5:32:38 GMT -5
Post by ms21117 on Apr 1, 2013 5:32:38 GMT -5
Thanks...should both valves on this engine be at .05 mm?
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Carb adj
by: gatekeeper - Apr 1, 2013 6:43:06 GMT -5
Post by gatekeeper on Apr 1, 2013 6:43:06 GMT -5
No that is a bit too tight. Try .1mm (.004 inches) on both the intake and exhaust. That's what my 50cc engine likes.
Here is a good video on adjusting the valves. You don't have to take the fan cover off. Just make sure the holes in the cam are lined up like the video shows.
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Carb adj
by: James Harwood - Apr 3, 2013 16:29:05 GMT -5
Post by James Harwood on Apr 3, 2013 16:29:05 GMT -5
[replyingto=ms21117]ms21117[/replyingto]i dont have the right advice for you, but good luck finding out...I will be watching the board for any help you get. I have the same engine on my peace sports 50 2010...seems to work great.
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