My 9.9 Johnson will not run unless the choke is out at least half way. Had the card reworked after finding a jell in the screen. Did not improve. Checked compression cold and measure #1)70 psi and #2)75 psi. Are the rings shot? What should the compression be? The thing starts easy but dies when you put it under any load espically if you try to let the choke off. Smokes horribly when choking and loading.
