F70A

F70A

New Four Stroke F70. One Step Ahead.

The new 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 6300rpm. The resulting top end performance will be great for boaters who want to get to their favourite spot first – and who doesn’t?

Mckay & Donaldson Yamaha

734 East Street
Ashburton, 8300

Telephone: (03) 308 7982
Facsimile: (03) 308 6695
Email: mckayanddonaldson@xtra...

Trading Hours

Monday to Friday : 8.00am - 5.30pm
Saturday : By Appointment
Sunday : Closed

 (03) 308 7982

Our News

19th December 2017
27th September 2017

About Us

McKay and Donaldson Yamaha is located in Ashburton, Mid Canterbury on the South Island of New Zealand.

Formed in 1977, it has been owned and operated by Bryan Donaldson, one of the founding partners, since 1990.