Originally Posted by mthorn
or not as the case may be!
Hi all, excellent forum!
I have a wetline 260 ECO and a 4hp Yamaha outboard and am just getting used to the idea of being on a boat that propel itself!
Generally I run it with just myself or one other person. One thing I still am not sure of is the trim, which hole I should use and whether it makes much difference give the engine size I have.
Any info you could lend me would be great
Thanks in Advance.
There are 2 issues for best boat/engine performance, the height of the sib's bottom with respect to the anticavitation plate (the big plate over the prop) must be generally 3 to 5 cm from each other, the other issue put your trim angle so that the engine is in 90º with respect of the sib's bottom, generally 1 or 2 hole from transom. This angle must be maintained while the sib is planing, balance the interior weight (pals, gear, etc) properly from center towards the bow. This information is in the engine owners manual and each engine brand recommended tail height/trim angle is available there, so take your time to read all the manual if you are not a experinced sibber.
As we do not know your weight, will doubt if with a small 4 HP engine you will be able to plane such a small 260 sib. Try to sit inside the sib, place your weight amidship towards the bow with your arm extended in a comfortable steering position, full throthle until the sib planes, if this happens reduce throtthle to 3/4 maintain planing. If not, better cruise at a throttle position that will move your boat at the most horizontal water level to avoid excesive water drag against the hull which will tend to slow you down.
I preffer to cruise non planing small engine/sib configurations throttleing the sib to roll flat on water than to throtttle more having the bow tending to go up difficulting front visibility. See what throttle position suits your cruise mood best. Tiller extension, a good idea, but before buying it, try best interior sib's tiller driving position.