Carb Settings
Right since this thread is needed ill start it off, everyone who knows the baseline settings for their carb & engine just post in this thread. Eventually itll build up into a nice database.
Do a plug chop between each adjustment, ride the bike through the gears at full throttle, pull the clutch in & kill the engine then roll to a stop, take the plug out. If its white you need a bigger main, if its black & wet you need a smaller main. You're looking for a nice coffee colour. (however dark isnt too bad - running slightly rich is better than running lean)
** Genuine Mikuni 24mm **
- CRF50 with 88 kit, head ported & polished - 4J13 needle, 120 main, stock pilot, needle clip 2nd from top, mixture 1 turn out.
** Molkt 26/28mm **
- YX140 with Z40 - Straight out the box, 2nd clip from the bottom, mixture 1 & half turns out.
** OKO/KOSO 28mm **
- YX125 - 95 main & 35 pilot, JFN needle on middle clip
** OKO/KOSO 30mm **
- YX140 with Z40 - 110 main & 42 pilot, needle 2nd from bottom, mixture 1 & 1/4 turns out.
- YX184 - JFJ needle, 110 main & 40 pilot, needle middle clip & mixture 1 turn out.
** Genuine Keihin PE 28mm (4stroke) **
- Z155 - 115 main, 38 pilot, needle clip 2nd from top & mixture 1 & 3/4 turns out
- 150 - 200cc / tuned up smaller engines - 115 to 130 mains & 38 to 42 pilots.
** Genuine Mikuni VM26 **
- YX140 - 0-0 needle jet, 135 main & 30 pilot, needle clip 2nd from bottom
- YX140 - 0-0 needle jet, 4J13 needle, 150 main & 27.5 pilot, needle clip in middle
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