Two Stroke Motocross

Two Stroke Motocross Forum => Technical => Topic started by: 151russellcr125 on June 03, 2012, 02:03:43 PM

Title: Air/Fuel mixture screw??
Post by: 151russellcr125 on June 03, 2012, 02:03:43 PM

ok so i closed my air fuel mixture screw and now im not sure where its supposed to be set... any tips on adjusting it? what difference does it make?

Title: Air/Fuel mixture screw??
Post by: SachsGS on June 03, 2012, 02:39:01 PM

Stock setting is 1 and 1/2 turns out from bottom.Gently screw the airscrew all the way in and back it off a turn and a half for your initial setting.

Title: Air/Fuel mixture screw??
Post by: Stusmoke on June 04, 2012, 03:08:28 AM

Turn your pilot air all the way in then out around 1 and 1/2. Kick the bike up and turn the throttle stop screw in and out until you make the bike idle at its slowest SMOOTH speed. Then adjust the pilot air screw in and out until you bring it back up until it idles as high as possible. Then use your throttle stop screw to lower it down to its slowest smooth speed again.

This helped me ALOT with my weird power delivery and loss of fuel/oil out the arse end of my bike. Good luck mate

Title: Air/Fuel mixture screw??
Post by: 151russellcr125 on June 04, 2012, 03:23:33 AM

that was a lil confusing lol

Title: Air/Fuel mixture screw??
Post by: Stusmoke on June 04, 2012, 05:39:37 AM

not really... I advise you to print it off, take it out to the shed and follow it step by step

Title: Air/Fuel mixture screw??
Post by: 151russellcr125 on June 04, 2012, 01:54:04 PM

will do, thx man... what do u mean the throttle stop screw? r u talkin about the idle speed screw?

Title: Air/Fuel mixture screw??
Post by: Stusmoke on June 05, 2012, 07:23:49 AM

Yeah thats the one. Its very different on my Yammie