89 Johnson 140 vro not revving

[thebottomfish]

Well I found two things today both relatively easy fixes.
Two of my spark plug wires we're chewed right at the boot so it caused an intermittent misfire, explaining the lack of power.
Other issue is that the throttle cable seems out of whack, looks like it only opens the butterflies about 1/3 of the way open. So they were only opening to about the 2k mark.
Tried to adjust it from the engine side but I can't get complete range of motion, it's either closed at idle and opens to about half way, or slightly open at idle and almost all the way open with the throttle pinned.
Should I mess with the adjustments at the control box or just expect to replace the cable?
Did compression test, great numbers, spark test is where I realized the wire issue.
Thanks for the advice so far!