07-17-2009, 09:10 AM | #18 |
Senior Member
Join Date: May 2009
Location: elgin,tx
Posts: 907
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Re: Needle shim modification
I did my needle shim and installed a 140 main jet and my milage droppped 10mpg. Don't know what the deal is. Thinking about reversing the procedure to gain back my mpg.
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