Rolling Feeling

[stoneflier1]

I have a 70hp Johnson on a 16' Vaguard boat. Ocassionaly when Im moving in flat/calm water the boat feels as if its riding on a large rolling wave? Any ideas?

Thanks

 

[ezeke]

Re: Rolling Feeling

Here is a link to a chinewalk discussion, see if some of it applies:

http://www.kencook.net/Chinewalk.html

 

[CATransplant]

Re: Rolling Feeling

When you say "moving," do you mean moving fast, on plane, or moving slowly through the water. Different causes in each situation.

 

[Scaaty]

Re: Rolling Feeling

Sounds like it might be "surging" carb-wise

 

[stoneflier1]

Re: Rolling Feeling

When you say "moving," do you mean moving fast, on plane, or moving slowly through the water. Different causes in each situation.

When I am moving fast!

 

[stoneflier1]

Re: Rolling Feeling

Sounds like it might be "surging" carb-wise

I did just have work done on the carbs. What is a surging carb?

 

[CATransplant]

Re: Rolling Feeling

When I am moving fast!

If the movement is front to back, then it's a trim issue on your engine. If it's side to side, it could be the same thing.

Does backing off a little on the throttle fix it?

 

[stoneflier1]

Re: Rolling Feeling

yes backing off fixes it

 

[Esox]

Re: Rolling Feeling

Sounds like it may be popoising. Is the bow moving up and down?

 

[CATransplant]

Re: Rolling Feeling

yes backing off fixes it

Sounds like a trim issue, then. If you have power trim, try trimming in and out just a skosh. If you don't have power trim, try the next trim position out and the next trim position in. Whichever one fixes the problem is the right one.

Once you find the sweet spot, you'll know it, and your porpoising will be a thing of the past.