Yamaha Motor unveiled four additions to its V MAX SHO outboard lineup as well as updates to its F8 portable and best-selling F150 outboards. The new engines were introduced at a media event held on October 9 at The Chattanoogan Hotel in Chattanooga, Tennessee.
Media were later allowed to test the new engines on 14 different boats at Yamaha's nearby testing facility in Bridgeport, Alabama.
"The V MAX SHO offers light weight, high performance and all the benefits of four-stroke power, including clean, quiet operation and great fuel efficiency' said Ben Speciale, President, Yamaha Marine Group.
V MAX SHO 115
Yamaha's new V MAX SHO 115 four-stroke double-overhead cam (DOHC) four-stroke weighs in at just 377 pounds. To provide an optimal power-to-weight ratio, the outboard utilizes a lightweight composite lower pan and cowling, a single-ram power trim and tilt mechanism, and a lightweight mounting bracket.
"Now owners of smaller boats can enjoy the benefits of the V MAX SHO family,' says Speciale.
The 1.8-liter V MAX SHO 115 features Yamaha's 16-valve DOHC, designed to provide optimal breathing for better performance. It also has large intake and exhaust valves (to generate more power and midrange torque), which are fed by a 60mm single-throttle body with Yamaha's long-track intake system and a free-flow exhaust.
Full-throttle rpm range is 6,300, which means Yamaha says better enables it to tailor the gear ratio for low-speed thrust and top end speed. A knock sensor allows the engine to operate constantly at peak output. The result is great top speed, 2.7 miles per hour faster than that of the next generation Yamaha F115 introduced in January 2014.
The V MAX SHO 115 uses Yamaha's Phaze Five paint system, which includes the electro-deposition of anti-corrosive paint on both the inside and outside passages of the engine block to better stand up to the harsh marine environment.
The outboard features Variable Trolling with adjustable 50-rpm increments from a range of 600 to 1,000 rpm. It's available in a shaft length of 20 inches currently and is covered by a three-year consumer warranty or one-year commercial warranty.
Inside the engine, dimpled cylinder sleeves, like those used on the Yamaha F350 V8, reduce weight and add strength. They also aid in heat transfer and help to keep the engine cooler.
Yamaha has also harmonized the outboard's inertial mass components and added large rubber engine mounts for smoother and quieter operation.
The new V MAX SHO 115 is expected to be available in April 2015.
V MAX SHO 175
The new 2.8-liter four-stroke, four-valve-per-cylinder V MAX SHO 175 engine is built to appeal to a larger group of boaters and anglers. The engine features Yamaha's Variable Camshaft Timing System (VCT), which advances and retards the angle of the intake camshaft to increase power and throttle response in the low- and mid-rpm ranges. These adjustments to help the inline four develop power in the midrange.
In tests conducted by Yamaha using a Skeeter ZX 190, the V MAX SHO 175 is reported to be 5.1 mph faster than Yamaha's V MAX SHO 150 (the V MAX SHO 175 produced a top speed of 62.1 mph versus the V MAX SHO 150's 57 mph).
The engine is equipped with sensors that constantly provide atmospheric and engine conditions to the Engine Control Module (ECM), which instantly makes adjustments for optimum performance. It's also designed to be smooth running and quiet by incorporating counterbalance shafts as well as other internal design features.
The engine also features Variable Trolling with adjustable 50-rpm increments from a range of 650 to 900 rpm. It tips the scales at 480 lbs. (Yamaha weighs its outboards without motor oil, gear case oil and prop) and is offered with in a 20-inch shaft length. Yamaha protects the engine with a three-year warranty or one-year commercial warranty.
With mechanical control, the outboard offers easy rigging. It can be equipped with analog gauges, 6Y5 digital gauges or Command Link gauges.
The V MAX SHO 175 is expected to be available in March 2015.
V MAX SHO 150 and 250 X-Shaft
Yamaha V MAX SHO family expands with the additional of two V6 four-stroke models offered with 25-inch shaft lengths. The 4.2-litre V MAX SHO 250 X-Shaft and the 2.8-litre V MAX SHO 150 X-Shaft offer boaters and anglers more choices, particularly those in Canadian and US Midwestern waters.
"The five-inch longer shaft for these models means that the users of multi-species boats can now enjoy the benefits for which the V MAX SHO has become famous,' said Speciale. "The X-Shaft models are also perfect for a variety of other applications that require a 25-inch shaft length.'
V MAX SHO 250 X-Shaft (25-inch shaft model)
While originally envisioned as a bass boat solution, Yamaha's 4.2-litre V6 has found a following among boaters with a wide variety of interests and preferences.
The V MAX SHO 250 has a 4.2-liter big-bore V6 displacement made possible by plasma-fused sleeveless cylinders. The outboard employs Yamaha's Variable Camshaft Timing (VCT) system.
The outboard weighs in at 555 lbs. and is covered by a three-year consumer or one-year commercial warranty.
V MAX SHO 150 X-Shaft (25-inch shaft model)
The V MAX SHO 150 joins the 250 in offering a 25-inch shaft version. It features a 2.8-liter in-line four-cylinder powerhead, and uses Yamaha's advanced four-valve-per-cylinder, 16-valve technology and the Variable Camshaft Timing (VCT) system.
The V MAX SHO 150 X-Shaft also receives Yamaha's variable trolling rpm switch (VTS), which allows anglers to adjust the trolling speed in 50-rpm increments from 650 to 900 rpm when using a Yamaha Command Link gauge.
The outboard is designed to operate smoothly by utilizing counterbalance shafts as well as deliver fuel-efficient operation.
The V MAX SHO 150 X-Shaft weighs in at 489 lbs. and is covered by a three-year consumer or one-year commercial warranty.
The V MAX SHO 250 X-Shaft is expected to become available as of July 2015, while the V MAX SHO 150 X-Shaft expected earlier in April 2015.
Yamaha Marine Group decided it was time to improve the best-selling outboard of all time. The 2.7-liter F150B retains its 16 valves but adds improved reliability, easier fishing, quieter operation and a refreshed appearance.
"Demand is as high as it's ever been for the F150 for three reasons: performance, reliability and customer satisfaction,' says Speciale. "The advanced-technology, DOHC 2.7-liter block is a time-tested platform that has been proven again and again. With these updates, the F150 will continue to be a Yamaha staple in our product line.'
The F150B gains an eight-tooth "dog clutch,' which replaces the previous six-tooth version for smoother, trouble-free shifting and excellent reliability. The new F150 also has internal machining and metallurgical improvements that include stronger, better valve guides and valve seats.
The F150B adds Yamaha's variable trolling rpm switch (VTS), which allows anglers to adjust the trolling speed in 50-rpm increments from 650 to 900 rpm using a Yamaha Command Link gauge.
For quieter operation, the F150B is compatible with Yamaha Reliance Series SDS propellers. Yamaha's Shift Dampener System (SDS) reduces the noise associated with shifting gears for smoother operation.
The F150B also has a new appearance with its new lighter composite cowling that covers its new powerhead cladding (manifold, oil, and alternator covers). Its new bottom cowling and apron also create a sleeker, less bulky profile.
Depending on version, the F150's weight ranges from 478 to 493 lbs. It's covered by a three-year consumer or one-year commercial warranty.
The new F150B is expected to be available in April 2015.
Yamaha updated four-stroke twin-cylinder F8 adds convenience and improved control for those seeking a portable outboard. The F8 cowling now has the sleek lines of larger Yamaha outboards and offers more features.
"Like its siblings, the F9.9 and T9.9, the F8 is quiet, smooth and has great fuel efficiency,' says Speciale. "Best of all, the displacement is up 7.5 percent resulting in more torque and thrust. This is a great, light-weight portable suitable for many small boat applications.'
For added convenience, the F8 tiller now offers improved handle-folding characteristics, which allow the stored motor to take up less space. It also has an improved carry handle. In addition, the F8 now features rear resting pads to allow the outboard to be stored with the rear side down, increasing storage options and improving storage stability.
Control improvements include a new ergonomic shift lever to assure better grip for more precise shifting. The shortened F8 tiller handle provides a little extra space onboard and potentially allows for easier operation.
The F8 comes in 20 and 25-inch shaft lengths, weighing 88 to 90 lbs. It's covered by a three-year consumer or one-year commercial warranty.
The new F8 is expected to be available in April 2015.
Pricing for all of Yamaha's new and updated outboards will be released at the Toronto International Boat Show in January.
Yamaha Marine Group, based in Kennesaw, Georgia, supports its 2,000 U.S. dealers and boat builders with marketing, training and parts for Yamaha's full line of products.