ASA and PSIA Instructor
Join Date: Apr 2000
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... All new small OB's in the US will be 4-strokers. In the Tohatsu/Nissan/Mercury lineup, the 4/5/6 family is a one-cylinder. The 8/9.8 family is a 2-cylinder, and available as electric start if desired. ...
This is interesting info about the current generation of OBs...nothing like having an expert chip in. Your information about the 6HP being a single cylinder is surprising and disappointing...I have not been much of a fan of the switch to 4 cycle motors...more wieght/more cost/less power. It all makes me treasure even more the Tohatsu 8HP 2 cycle I have on my RIB.
All given, I'd say look hard for a used 2 cycle 8HP rather than pay the cost and live with the weight of a new 9.9.
Certified...in several regards...