Not enough throttle cable throw

[TomMcKinney]

I have a 1974 johnson 70 hp--I attached a generic set of Johnson/evinrude/omc controls- work OK except I can't seem to get the engine to really rev up--now that I think about, have not checked to make sure it can rev up- but sounds like it should have more-- also boat is no going up on plane and 70hp shold be enought (1hp per 25lbs means 1750lbs- boat is plywood 17ft maybe 800-1000lbs empty 2 guuys and motor/equip, puts us right at the bubble, but still, can't get there.

 

[JB]

Re: Not enough throttle cable throw

Hi, Tom.<br /><br />Assuming that your boat is a planing hull, the 70 should plane it well.<br /><br />Your post leaves too many possibilities open to go into.<br /><br /> http://www.iboats.com/cgi-bin/ubb/ultimatebb.cgi?ubb=get_topic;f=17;t=009035 <br /><br />Will guide you to several hundred posts and answers on power loss.<br /><br />Come back here to tell us how you solved it or ask for more specific help.<br /><br />Good luck.