Gentlemen,

my 28 sp with 7700kms and standard spec, will not idle,it starts and runs very unevenly,seems to run much colder on frt cylinder.I have swapped plugs,coils,pgm box,done compression check,cleaned carbs,replaced needle valves.None of the checks have made any difference.The bike runs fine at higher rpm,but stalls if you let the revs drop.Can anyone help please.
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