Dakotas Dream 0 Report post Posted June 30, 2008 I have a 200 262 with a volvo penta 5.7 carb with s.s. duo pro. f 4. What is the red line rpm? what is the cruise rpm? Max mph.? Currently i do most cruising a 3400rpms which seems to be best on gas. 3800-4000 i do use more gas. My spedo goes in and out. so i think 3400 rpms/ 26mph? I cruise on the upper chesapeak bay. Share this post Link to post Share on other sites
The MOST 0 Report post Posted July 22, 2008 Hello Dakotas Dream, To obtain specifications for the engine, contact Mercury direct for an owner's manual (you need one anyway). The contact info is as follows: www.mercurymarine.com or 405-743-6566 in Oklahoma. The RPM limits will be in the manual as well as maintenance schedules. Optimum cruise speed will vary a bit as the boat/engine ages but also the type of water, load on the boat, conditions of water and wind, etc. The 3400 rpm sounds about right. You are the best judge of the best fuel burn use. It is also a good idea to have a GPS and have a record your trips- there are some very inexpensive handhelds out there these days that are great which can give you an accurate reading on speed as well. The speedometer going in and out is common (it operates by water pressure from a small tubular hose that runs from the transom) and there could be debris clogging it up. Share this post Link to post Share on other sites
beau 0 Report post Posted July 24, 2008 Hello Dakotas Dream, To obtain specifications for the engine, contact Mercury direct for an owner's manual (you need one anyway). The contact info is as follows: www.mercurymarine.com or 405-743-6566 in Oklahoma. The RPM limits will be in the manual as well as maintenance schedules. Optimum cruise speed will vary a bit as the boat/engine ages but also the type of water, load on the boat, conditions of water and wind, etc. The 3400 rpm sounds about right. You are the best judge of the best fuel burn use. It is also a good idea to have a GPS and have a record your trips- there are some very inexpensive handhelds out there these days that are great which can give you an accurate reading on speed as well. The speedometer going in and out is common (it operates by water pressure from a small tubular hose that runs from the transom) and there could be debris clogging it up. Empirical evidence gathered over the last year of using our 262 offshore(same engine / drive and prop) suggests that you are right on the money with RPM / Speed / Economy! Share this post Link to post Share on other sites