F70

F70

Four Stroke F70. One Step Ahead.

Yamaha F70 is a further development of the F60, sharing the same displacement and stroke. The engine is lighter than any competitive four stroke or direct injected two stroke motor in the 70 – 75 horsepower class. The F70 achieves this by its unique four valves per cylinder design activated by a single overhead camshaft rather than the conventional dual camshaft design for 16 valve engines. This reduces the weight that would result from having an extra camshaft and the components that go with it.

For a remarkably light engine, the F70 punches well above its weight. Four valves per cylinder have dramatically increased this engines volumetric efficiency - the efficiency with which the engine can draw fuel and air in and push exhaust out of the cylinders. Increasing this efficiency means the F70 is able to run at a higher RPM with the max operating RPM being increased to 6300 RPM. The resulting top end performance will be great for boaters who want to get to their favourite spot first – and who doesn’t?

Jamieson Marine

36 Kohinoor Road
Kingscote Kangaroo, SA, 5223

Telephone: (08) 8553 2543
Facsimile: (08) 8553 2627
Mobile: (04) 1787 1123
Email: brad@jamiesonmarine.ne...

Trading Hours

Monday to Friday : 7.00am - 5.00pm
Saturday : Closed
Sunday : Closed

 (08) 8553 2543

About Us

 

Jamieson Marine is a family-owned and operated marine and automotive servicing centre located in Kingscote, on Kangaroo Island.  Providing a full range of services from marine sales, to outboard servicing, to boat and trailer repairs – we ensure our work is of the highest quality, and we pride ourselves on our honesty, integrity, and workmanship.  In short, we make sure your boat is fit to be on the water!!