I have an Evinrude 15hp Worktwin. It starts great and run OK. The problem is when I put it to fast it does not rev. up to high speed. I also have an 7.5hp evinrude and it seams to twice the power. What can I do to fix the problem.
Your 15HP is probably running on one cylinder, Wayne. Almost surely an ignition problem.<br /><br />When you know the year you can get a Manual to help you troubleshoot it. Click on Repair Manuals at the bottom of the page.<br /><br />Good luck.
