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KTM / Re: Jetting Help - KTM390 1981
« on: April 01, 2012, 07:42:48 pm »Bing Carby - 38mm
type -54/38/107
Main jet - 185 or 190
Needle jet - 276 or 280
Jet Needle - 6L2
idle Jet - 45 or 50
Throttlre slide - 220
start Mix screw about 1/2 out and work from there