hi, I have a 200HP , model E200TXEDR, that it takes a long time to start , when it does, it runs rich , I see a lot of smoke event after been running for several minuts, I notis that the base time advance was like stocked , not muving at all, and I can see like a very shiny black color around it , it seems like if it burned, ..will this cause the motor to run rich under acelerations? also it runs very rought in idle, like missing and die ,them it starts fine againg but keep running rough, compression is good 110 psi per cylinder.., thanks for any info