So long as you're carefull - exceeding the HP by 25% shouldn't hurt
anything. Just be wary on your first run and take it up to WOT slowly to see
how everything reacts.

-W

"John Newbie" wrote in message
e.rogers.com...

I have a small 9.9 motor on my 14' small fishing boat. I read the manual
it
says it can be upgraded to 30 HP maximum ... wondering if I put a 40 HP on
it, will that be dangerous? coz my I found a good deal on a used 40HP.

John