Stihl 066 short block older premature fire I think lol.

[mullinsrandall]

Ok I rebuilt this from just a block basically I put good parts nothing cheap. I did big bore with pop up piston. Pulls good 150lb compression great fire. Serial number 12838056, has everything new. 2 key flywheel 1209/1214. I put a 1314 coil on it . When I pull it with d handle it kicks back smoke comes out muffler just tad cylinder gets warm. I tried moving from x to p on flywheel and different type sounds but same thing. Can somebody help with this money pit lol? I'm a professional car mechanic I know stuff has to be in time I feel like it's not. Thanks I read posts on here daily just learning so pardon my stupidity. Love to learn more thanks.

 

[promechanic]

Big bore cylinder and pop-up pistons don't usually mean good quality parts. Do you know what your actual ignition timing is? Squish measurement?