Originally Posted by Don P
i took the plunge to day. fired up my new 66cc engine on opti 2 went with 70:1 for the first gallon break-in lol.
it is running rich, it 4 stroke n. so what jet size do i need any one know?
i put about 3 miles on it now. thanks all Don P
Which carb are you using?
What elevation are you at?
Before you start messing with the jet size.
what position do you have the clip on the needle?
First try raising the clip up one groove at a time to lean it out.