I have been running one for about a year now and would not trade it for anything, unbelivable hole shot with the same top speed. However i did have something happen this last weekend that i am trying to figure out and need some help...<br />Normally the shifting is very controllable with the trim and boat speed. It will not shift until the rpms get to about 4000. So when we are wakeboarding or skiing, the prop never shifts. just when we want to cruse, i run it up to 4200 & start to trim and then the prop will shift. <br /><br />THis weekend however, after doing several ski and wakeboard run's i had a strange thing happen, While pulling someone, the rpms would start to drop and consequently the boat would start to very slowly drop off plane. Kind like the motor started to bog. This happened twice, once with a skier @ about 25mph and again with a wakeboarder @ about 18mph. Both times starts out fine, then all of the sudden it would start to bog...<br /><br />Initially I thought it was the outdrive (OMC 800) or motor so I slowly drove it back to the ramp.<br />Got home, checked things out and it all seems ok. So, I got to thinking that since the rpm's dropped a lot more than our speed it would seem that it was not related to the motor or outdrive. Then I thought about the prop, it must be shifting
But WHY? It has never tried to shift at such slow speeds before
<br /><br />Other related info...<br />I lubed the prop internals for the first time since I got it. The instructions say not to, but it would seem that the wear on the moving parts would be bad, so a put a fine coat of lithium on the contact parts.<br /><br />Also the heavy rains this year have created quite a debris field, could contact with a large piece of drift would induce a shift?<br /><br />I know this is long, so thanks for reading
<br /><br />Take it back apart, thoroughly clean the parts that are supposed to be dry, then reassemble. You could leave it lubed and adjust the springs, but then once the lube wears away it will begin to not shift as the resistance builds back to the stock level. <br /><br /><br />Good Luck!