Johnson 70 Sea Horse dies on throttle up

[b.alan]

I have a 79 johnson 70 hp. Motor will start fine and idle fine. The motor will go forward fine slow, but when I open up the throttle it dies most of the time, but will run great if it makes it to full throttle. Anyone have any ideas what the problem could be?

 

[DJ]

Re: Johnson 70 Sea Horse dies on throttle up

b,alan,<br /><br />You can just about bet it's gummed up carburetors.<br /><br />They will need to be disassembled and cleaned.<br /><br />Not a hard job, with a manual.

 

[b.alan]

Re: Johnson 70 Sea Horse dies on throttle up

Thanks djohns19, I was also told this could be linkage problem, do you know about this? I was also quoted 350.00 by a boat shop to repair or clean carbs. Sounds too high.

 

[DJ]

Re: Johnson 70 Sea Horse dies on throttle up

The parts can be had for about $70.00 to $100.00. (high end) Add a manual for $30.00 and you're way ahead of the game.<br /><br />I doubt it's a synch. problem.