Trystan Casey
Yamaha Motor Corporation introduced electric start in its motorcycles in 2006 with the Yamaha TT-R50E, which was a popular choice for the youngest riders. In 2009, Yamaha released the TT-R230, a small-displacement off-road motorcycle with electric start created for beginner to intermediate riders. Yamaha also released the YZ450FX in 2016, which featured an electric starter and a main-switch-free electrical system. In 2019, Yamaha released the YZ250F, which was equipped with electric start and the first smartphone-engine tuning app for a production 250cc motocross bike.
| Characteristics | Values |
|---|---|
| Year of first electric start | 2005 |
| First electric start model | YZ125 |
| First electric start model with a push-button | TT-R50E |
| Year of first push-button electric start model | 2006 |
| First 2-stroke electric start model | YZ250 |
| Year of first 2-stroke electric start model | 2019 |
| Latest electric start model | YZ450FX |
| Year of latest electric start model | 2016 |
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Yamaha YZ450FX
Yamaha introduced its first electric-start off-road 450 bikes, the Yamaha YZ450FX and WR450F, in 2021. The YZ450FX is an off-road race bike designed for cross-country racing. It features a lightweight, compact chassis, a powerful four-stroke engine, and Yamaha's next-generation Power Tuner app. The engine is liquid-cooled and delivers controllable, torquey power tuned for cross-country racing. The bike also has cross-country-specific suspension tuning, a wide-ratio five-speed transmission, and an enduro-specific multiplate clutch.
The YZ450FX shares the YZ450F's revolutionary, rearward-slanted-cylinder design, with a reversed cylinder head and forward-positioned, straight intake. The bike has a kickstart lever for backup. The electric starter sits in front of the motor. The YZ450FX's suspension performance is renowned, featuring a fully adjustable KYB® coil spring-type fork with speed-sensitive damping, providing exceptional bump absorption and easy adjustments. The rear suspension features a KYB® shock with cross-country-focused damping characteristics, matching the refined YZ450FX chassis. The slim, flat, compact body of the bike allows for improved rider movement and control.
The YZ450FX also features Yamaha's groundbreaking next-generation Power Tuner App, offering an intuitive "Simple Tuning" slide bar for quick engine mapping selections, traction control, a lap timer, and engine and suspension tuning guides. The app is free to use and allows riders to adjust the air/fuel mixture and ignition timing, log race setup information, and more. The bike's redesigned aluminum bilateral beam frame provides a perfect balance of straight-line stability and cornering performance, resulting in improved handling, agility, and traction.
The 2025 Yamaha YZ450FX was put to the test in an off-road race, showcasing its exceptional performance. The bike's new "Tri-Shaft" transmission and gear ratios were spot-on, except for the first gear, which was too low and unusable in certain conditions. The clutch design impressed with its smoother engagement and easier clutch pull, thanks to the elimination of the coil spring clutch. The YZ450FX performed well in whoops and sandy terrain, demonstrating its versatility and ability to handle aggressive riding.
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Yamaha WR450F
Yamaha Motor Company introduced electric start on its 2-stroke bikes in 2019. The company also released an electric start kit for the Yamaha YZ125, which was available from 2005 to 2021.
The Yamaha WR450F is an off-road motorcycle with a 450 cc liquid-cooled single-cylinder engine. It was first introduced in 1998 with a 400 cc engine and has since benefited from advances in the YZ motocross version, gaining displacement and advancements such as an aluminum frame and improved suspension.
In 2012, Yamaha released an updated WR450F with a 2012 YZ250F frame, KYB SSS forks, fuel injection, and an altered motor position. The engine was rotated back to improve handling and move the center of gravity.
In 2016, Yamaha introduced another new model, the WR450F, which featured the reverse slant, 4-valve, fuel-injected motor previously available in the YZ450F since 2010. This model was designed for enduro racers and aggressive trail riders, with suspension, gear ratios, and power delivery tailored for trail use. It also included a headlight, radiator fan, 18-inch rear wheel, kickstand, and met emission requirements. The biggest update to this model was the electric starter, which was positioned in front of the motor.
The 2017 WR450F remained largely unchanged from the 2016 model, with the exception of modifications to the airbox cover and a change from silver to black rims. In 2018, the WR450F remained similar to the 2016 and 2017 models, but with the notable difference that the bike was no longer available for registration. This year also saw the removal of the kick starter.
The 2019 WR450F featured a more powerful motor and an updated, more compact frame. Other changes included a new speed sensor, a bigger fuel tank, and one fastener airbox access.
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Yamaha TT-R230
Yamaha introduced electric start on its two-stroke bikes in 2016 with the YZ450FX and WR450F models. The YZ450FX is an off-road race bike designed for cross-country racing, while the WR450F is a trail bike. Both bikes feature a revolutionary, rearward-slanted-cylinder design with a reversed cylinder head and forward-positioned, straight intake. The electric starter on these bikes is positioned in front of the motor and helps reduce rider fatigue.
Yamaha has also offered electric start on several other models, such as the YZ250F, which was introduced in 2019, and the YZ125, which had an electric start option from 2005 to 2021. Additionally, Yamaha released the TT-R110E in 2010, which is an entry-level off-road motorcycle with an electric starter engaged by a handlebar-mounted push button.
The Yamaha TT-R230, in particular, is a trail bike that Yamaha produced from 2005 onwards. It is a mid-range dirt bike designed for beginner to intermediate riders, kids, or teens, and is primarily used for family recreation and off-road trails. The TT-R230 features a compact wheelbase, a low seat height, and a soft, wide seat. It has a 223cc four-stroke air-cooled single-cylinder engine with electric starting, delivering predictable and broad power suitable for both beginners and intermediate riders.
The TT-R230 was first introduced in 2009, with no significant changes from the previous model except for the price. It retained the suspension system from the previous model, which included a 36 mm leading-axle telescopic fork on the front and a single shock absorber on the rear. The 2009 model had a MSRP of $3,700. The TT-R230 continues to be produced without any major modifications, offering a reliable and easy-to-maintain option for off-road enthusiasts.
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Yamaha YZ250F
Yamaha introduced electric start on its 2-stroke bikes in 2019 with the YZ250F, which was redesigned from the ground up. The bike was the first production 250cc four-stroke motocross bike to feature an electric start and a smartphone engine tuning app.
Yamaha has offered electric start kits for some of its other bikes, such as the YZ125, YZ250, and YZ450FX. The YZ125 electric start kit improves the bike's startability, even when it is difficult to start with a kick pedal. The YZ250 electric start kit allows riders to easily and reliably start their engines with the push of a button, without having to kickstart the bike.
The YZ450FX, introduced in 2016, was Yamaha's first off-road race bike with an electric starter. The bike features a revolutionary, rearward-slanted-cylinder design with a reversed cylinder head and forward-positioned, straight intake. The electric starter, along with a main-switch-free electrical system, helps reduce rider fatigue and provides easier race starts.
Yamaha has also released electric-start motorcycles for novice and young riders, such as the TT-R110E and TT-R230. These bikes feature a push-button electric starter, making them easy to use and ride for beginners. The TT-R110E, introduced in 2010, has a 110cc four-stroke air-cooled single-cylinder engine and a comfortable riding experience with its soft suspension and high ground clearance. The TT-R230, released in 2009, has a compact wheelbase, a low seat height, and is designed for beginner to intermediate riders.
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Yamaha TT-R110E
Yamaha Motor Corporation is a Japanese manufacturer of motorcycles and marine engines. While I cannot confirm the exact year Yamaha started electric starts, it is known that they released the TT-R230, a small-displacement off-road motorcycle with electric starting, in 2009.
Now, onto the Yamaha TT-R110E. This bike is designed for fun for the whole family, catering to both young and older riders. It is an entry-level, small-displacement off-road motorcycle that is easy to use, maintain, and ride, making it suitable for novice and young riders stepping up from smaller models like the TT-R50.
The Yamaha TT-R110E was first released in 2010 and continued production through 2012 and possibly beyond. The ""E" in its name indicates that it features an electric starter, which is a convenient push-button mechanism mounted on the handlebar for effortless engine startup. This is complemented by a backup kick starter.
Under the hood, the TT-R110E is powered by a 110cc four-stroke air-cooled single-cylinder engine, fed by a VM16 Mikuni carburetor. This engine delivers 8 Nm (6 lb-ft) of torque at 4,000 rpm, transmitted through a four-speed semi-automatic transmission with an auto-clutch function and a final chain drive. The suspension system includes a 31 mm hydraulic telescopic fork at the front, offering 115 mm of travel, and a single shock at the rear with 110 mm of travel. The bike is assembled around a backbone-type steel frame and boasts high ground clearance, ensuring a comfortable riding experience.
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Frequently asked questions
Yamaha has been offering electric start as a feature on some of its motorcycles since at least 2005.
The first Yamaha motorcycle to feature electric start was the YZ125, which offered an electric start kit as an optional extra.
Yes, Yamaha offered electric start on its TT-R230 and TT-R50E motorcycles in 2009.
Honda and Kawasaki also offered electric start in 2009.
Electric start reduces rider fatigue from the kickstarter and makes starting the motorcycle easier.
