I got 2 Tsunami's and the last couple times I've run them. They run great for about a half tank of fuel then start bogging down at mid thru full trottle.[&o]

I've tried leaning them a 1/4 turn no effects. I've also put new plugs in.

Thanks for any info!

Richen them up about a quarter turn the heat is leaning them out [&o]

yeah, richen the high needle a 1/2 turn and see if that helps, sounds like your running too lean.

Return the high speed needle to your original setting (around 2 1/2 turns out). Try slowly revving it up while off the ground and watch the high speed needle. I have found that the oring was a bit worn on one of my Tornado's and every couple full throttle passes the needle would actually close and lean the motor out. I would reset it and it would do it again after 1-2 passes. If this is the case, buy a new oring for the high speed needle at your local hardware store.

Opps, Double Tap

I've watched the High adj screw I marked it with a fine tip sharpie its staying put. I'll try richen them up and see how it goes.
I did notice if I stop and let it Idle a few seconds when I hit the throttle it sure puts out the blue smoke.

Thanks I'll give these a shot.

Sounds like its just running lean then. Try turning the high speed needle CCW 1/2 turn at a time and test it.

the carb can load up with fuel while at idle, thats why you have that initial burst of smoke, when the high speed needle takes over, its too lean, just richen it up a 1/2 turn and see if that helps you out, you may need to do more but do it in small 1/8 incriments at a time.