1998 Electric Start Johnson 50 hp

[Fish Hunter]

Is it feasible or cost effect to replace the linkage system within one of these motors? Mine has little to no adjustment left. Idle issues as well as variance when running 3/4 to full throttle. Sometimes does not hold a speed, will vary up and down.

Would parts be available and at what expense? Compression test out around 125 on both cylinders and everything else runs well.

[boats.net]

As long as the parts are still available then it is usually cost effective to replace just the linkages. The following link will assist you in pricing out your parts.
Johnson Outboard Parts