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Post by jloi on Apr 17, 2019 13:33:02 GMT -5
anybody have any ideas on why , on my 150cc gy6 , when I changed my vacuum feed petcock for gravity feed petcock the engine refused to idle correctly- it refused to idle under + or - 3100 rpm.. ?? I tried adjusting the idle air mixture screw ; had no effect.
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Post by jackrides on Apr 17, 2019 13:38:57 GMT -5
First guess: vacuum leak from removed vacuum line.
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Post by jloi on Apr 17, 2019 14:08:05 GMT -5
well , I just changed back to the vacuum petcock and it idles down real nice . I guess I'll have to break out the cigar and do a smoke leak test and make sure there are no vacuum leaks .
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Post by SMALL CC TEK on Apr 17, 2019 20:36:43 GMT -5
You did plug the line right ?
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Post by jloi on Apr 18, 2019 9:49:11 GMT -5
Absolutely. all I really had to do was remove the plastic inline " Y " and then plug the hose from carb into intake where " y ''was .
so there is no way vacuum isn't hooked up. I just need to check for good/bad connections.. Leaks .
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