Yamaha Jet Watercraft Engines
TR-1 High Output
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Yamaha Jet Watercraft Engines TR-1 High Output Yamaha Jet Watercraft Engines TR-1 High Output
The Yamaha TR-1 High-Output marine engine replaces the venerable MR-1 engine and is 13% more powerful, 40% smaller in size and 20% lighter in weight. This means more fun and excitement for entry and mid level PWC buyers in 2016 because the boat is lighter and therefore more agile and nimble. This new 3-cylinder engine is featured on the 2016 Yamaha WaveRunner VX line (VX, VX Deluxe, VX Cruiser, VX Limited) and V1 line. ( V1, V1 Sport).

Key Features

  • All-new three-cylinder engine
  • Quicker acceleration
  • Higher-top end speeds
  • Better fuel efficiency
  • Featured in the 2016 V1, V1 Sport, VX, VX Deluxe, VX Cruiser, VX Limited

Yamaha Jet Watercraft Engines TR-1 High Output (Jetdrive) Specifications
Number of Cylinders 3 Cylinders
Weight (lbs/kg) 160.00 lbs / 72.57 kg
Length/width/height 30” x 21”x 19”

Yamaha Jet Watercraft Engines TR-1 High Output Captain's Report

Size Matters

Performance of any watercraft is dependent on weight and the ratio of available power to move that weight. Yamaha enhanced both ends of the equation by lightening the engine while making it more powerful at the same time.

The previous engine – the 1052cc MR-1 -- had four cylinders with five-valve heads and weighed just over 215 lbs. (97 kg). Its replacement shaves off a cylinder, and produces its power from 3 cylinders with only four valves each. Her displacement has changed little – just 3 cc less -- to 1049cc while the overall weight is now down to 160 lbs. (73 kg). This an impressive 25% less weight with virtually no change in displacement.

Yamaha TR-1 High-Output

This view shows the compact size of the new three-cylinder TR-1.


We have not yet tested this new engine, but we did have a chance to ride the new VX Limited featuring the TR-1 engine, and our initial impressions were positive. It appears Yamaha may have achieved their goals to provide quicker acceleration, and a higher top speed while improving fuel economy and an all around fun ride.

Block Talk -- Less is More

Yamaha designers did not just make an engine with three large pistons with the same displacement of four smaller ones. They also eliminated the reduction gear, integrated the oil tank, attached the ECU and air filter to the motor, and used fewer parts throughout its design.

Yamaha TR-1 High-Output

Seen from above we can see the intake manifold and compact size. Yamaha TR-1 High-Output

The overall size of the TR-1 is 30” (.76 m) long by 21” (.53 m) wide and stands 19” (.48 m) high. The exhaust manifold is large and relatively unrestricted.

Corrosion Protection

Yamahas are a favorite among PWC rental operations around the world, and one reason for that is the ability for Yamahas to hold up to corrosion. Let’s face it, rental PWCs are not loved like the family sled and saltwater environments can eat them alive. Yamaha knows this, so the TR-1 has improved coatings on critical surfaces to keep them looking and running longer.

Yamaha TR-1 High-Output

The big news, and the secret this powerplant’s 25% reduction in weight is the elimination of its reduction gear.

Pump Drive

The TR-1 will use Yamaha’s all-metal jet pump housing which uses a stainless steel three-bladed impeller and 155 mm aluminum nozzle for thrust.