Posts: 3480
Location: Elk River, Minnesota | Hiya,
First off, what kind of oil are you using, and when was the last time you decarbonized the system? If you have not decarbonized, get a can of "Mercury powertune" which is like a spray can of Seafoam. Get the motor up to temperature, then set the idle high, spray into the throttle body/carb throats. The motor will start to bog down and blow a bunch of white smoke, but keep going. When the motor is about to quit (probably will not on it's own) shut it down and spray into the throat another 10 seconds or so. Let the motor sit for about 1/2 hour to an hour. Then...take it to the lake and open it up. you will have a bunch of white smoke for a while, but after doing so, the motor should run better.
Once you get home, let the motor cool off and change the plugs.
If you are using normal yamalube, I would suggest switching to a synthetic like Amsoil. It will smoke quite a bit less and will not foul up the system anywhere near as fast as conventional 2 stroke oil.
Just a couple of things to consider before taking it in... Easy things to try that are not costly and more or less preventative maintenance.
Steve |
