2006 Yamaha 150 4-strokes stalling - The Hull Truth

green_machine · 10-19-2009, 09:01 AM

any help on the following would be appreciated:

I have twin 2006 Yamaha 150 4 strokes with a little over 900 hours on them. They occasionally stall when I am at idle and shifting in and out of gear. They shift into forward and reverse no problem, but once I give it gas they stall.

I had the fuel injectors all serviced and replaced. The engines ran a lot better, but did stall every once in awhile. The fuel filters are changed each season, as well as, other routine maintenance. I read a couple posts about this problem with people shifting too slowly, but this isn't a problem with shifting slowly. It is happening after shifting in gear and then giving it gas. No other issues and engines run great once the rpm's pick up.

Any feedback would be appreciated. Thanks!

WCM · 10-22-2009, 08:06 PM

check fuel pressure and vacuum on both engines and compare to specs. it seems to be a common issue in the fuel system, but try that and see what you get.

WCM · 10-22-2009, 08:18 PM

oh, try to run them with a portable fuel tank first if you can

A1 Outboard · 10-24-2009, 04:45 AM

Four stroke outboards should be decarboned on a yearly basis. That may solve your stalling problem. It is also getting close to time to change your timing belts.

thule89 · 06-01-2010, 09:04 PM

I have a 2006 f115 4st. What is decarboning and how is it done?