Mini - SU Carbs

[vince168]

Mini guys,

How do you know that you're SU carb mixture is properly set-up meaning its not too rich and not too lean ??

[kevin]

Hi Vince! just a wild guess... comparing to any other carb, air-fuel mixture is rich when your muffler tip cavity leaves a heavy black residue. Is that right enthusiasts?

[Batman]

Hi Vince! just a wild guess... comparing to any other carb, air-fuel mixture is rich when your muffler tip cavity leaves a heavy black residue. Is that right enthusiasts?

Coorect ka dyan Mr. Kevin, However the same occurance also happens pag sira ang mga valve seals. The best way to know if tama ang mixture is thru the color of the tip of the spark plugs. If its White then Lean mixture, Black its Rich mixture, if its Brownish red parang kalawang eh thats a good mixture na.

[kevin]

Hi Batman! Nice to see you on the forum.

[jeproxxx]

i agree with batman. another way is thru the smell of the smoke sa exhaust and its effect to the eyes. rich kung masakit sa ilong at sa mata. :D

[miniracer]

Coorect ka dyan Mr. Kevin, However the same occurance also happens pag sira ang mga valve seals. The best way to know if tama ang mixture is thru the color of the tip of the spark plugs. If its White then Lean mixture, Black its Rich mixture, if its Brownish red parang kalawang eh thats a good mixture na.

also remember batman, unleaded fuel tends to leave a brownish residue sa spark plug even when lean ang mixture. use leaded when tuning via spark plug color.