21 Pro V Chiming

[KNock]

I have a 21 Pro V with a 250 Optimax. When I reach a speed of 70 mph it wants to start chiming on me. Im turning a 4 blade prop. Please help me if any body can help solve the problem.

[blazerbrian]

You may have the mota to low. Also make sure your load is balanced.

[blazer210]

Try raising your engine a 1/4 inch at a time. This is what I had to do when I first drove mine.

[ftexbassman]

Ive got an '01 model that does it bad when the water is super calm. i cant run her wide open when its like calm like that, aint never really understoood it. but it flat out flies when theres just a lil chop on the water.