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1987 Trx250r
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Discussion Starter · #1 · (Edited)
Hello everyone, I just purchase my first 87 250r . It’s has a stock Keihin 34mm carb , fmf gold series exhaust , uni filter with air box lid removed. motor seems stock otherwise. The main jet is 165 and pilot is 50 the needle is (R1371N- CGM??? ) does That seem pretty high for the included mods ?
im in Arizona 2400-2800 elevation.
 

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I have the same mods on my 85 with same PJ 34 carb with 48P and 155M but I'm in NJ so can't compare them. What does the plug look like and how does it run?
 
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