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Scooters - 50cc => Super 9 => Topic started by: Rage on March 14, 2012, 08:49:32 PM

Title: Too lean
Post by: Rage on March 14, 2012, 08:49:32 PM

Hey guys, just looked at my plug against a chart.... seems I'm running a bit lean. Which way do i turn the mixture screw to richen? Thanks!

Title: Re: Too lean
Post by: wordslinger on March 18, 2012, 04:01:25 AM

...lean...at idle or wot..or mid...??

..

Title: Re: Too lean
Post by: zombie on March 18, 2012, 04:50:15 AM

I just posted about the burnt orange. It is residue from fuel additives (ethanol) that ash, and turn bright colors when heated to just below the melting point of aluminum. You need to increase the jet size by 1-2 steps.
Which side of the carb is the idle mix screw on? The intake or filter side?

Title: Re: Too lean
Post by: wordslinger on March 18, 2012, 04:54:38 AM

..makes sense...but my plug on my 04 s9 looked like that..oem setup...kinda orange...