Will not get on plane

[Subforce]

I have a 1998 75ELPTO HP motor, electric start. The motor idles fine in the driveway and on the lake, however; when I go to give the gas, nothing happens, I stay at idle speed. My trolling motor moves me faster through the water than my outboard . Any suggestions would be greatly appreciated.

 

[Laddies]

Re: Will not get on plane

Have you cked the linkage to make sure it's working

 

[Subforce]

Re: Will not get on plane

In the driveway all works well. Prop spins and speeds up as throttle is increased. I don't think it is a linkage problem.

 

[plumber2]

Re: Will not get on plane

Putting a load on it is way different than in the driveway. My similar problem was a vacuum leak and carbs out of adjustment. If its been a while since its been run the carb or carbs probably need cleaning and new plugs. I found a cool tool at Autozone for $7. Its a little thing that looks like a test light you can run down a plug wire and a light flashes when it fires everywhere that it is firing, even at the plug. Really handy for making sure you are getting fire. Good luck.

 

[Bradg]

Re: Will not get on plane

My brother have the same problem with his older 85<br />merc,ran fine at home on muffs but on lake after running for a few mins could not get above idle speed. Was the fuel pump on his motor.

 

[saltwater_cowboy]

Re: Will not get on plane

Had same problems on a 1988 80HP 3cyl. Cleaned the carbs out and replaced the fuel pump kit and all good now.<br /><br />Only a few bucks to sort and an hour or so.

 

[JohnnyS]

Re: Will not get on plane

Had a similar sounding issue last year. Turned out to be a bad switchbox. Replaced it and like magic I was back in business.<br /><br />John