When Yamaha says that the 2015 SR400 is, with exception to EFI, beholden to the original model, it isn’t kidding. At first glance the new SR appears to be either a restored, or a recently uncrated new old stock (NOS), example of the late ’70s classic. If the SR’s mechanical simplicity, light weight or disco-era styling appeal to your sensitivities your day will be made better with news of the SR400 coming Stateside in 2014 as an early-release 2015 model.

EFI denotes this SR as modern. Otherwise, it's hard to tell the difference between now and then.

EFI denotes this SR as modern. Otherwise, it’s hard to tell the difference between now and then.

Chrome fenders, dinner plate blinkers, fork gaiters, oh, and get this, kickstart only. No push-button, electric starter here, you gotta man-up and put your biker worth on display to get the piston within the 399cc cylinder thumping. Just don’t tell anyone that, according to Yamaha, the SR400 is extra easy to start, aided by a manual compression release.

Back in the day, when motorcycle advertisements were small novels, an ad for the then new SR500 could have been written about today’s SR400. Here’s an sample: “The big-bore single-cylinder four-stroke (or ‘Thumper’ as it’s respectfully called) is back. And better than ever. Its reverential nickname and heritage date back to the days of the BSA Gold Star, Matchless and Norton Manx. But today, Yamaha has perfected starting the ‘Thumper.’ What hasn’t changed from the old days is the styling. The SR has a relaxed, nostalgic look and feel.”

SR400_Action 11

A narrow, double-cradle steel frame and claimed 384-pound curb weight should make for a very maneuverable motorcycle.

Yes it does. And for those hipster types desiring a bike with which to customize this throwback model into maybe a pseudo flattracker, road racer or knobby-tire scrambler the clean sheet design should make for a wonderful canvas.

Curiously, the air-cooled, SOHC, two-valve Single comes without a counter-balancer, so it’ll be interesting to feel the amount of vibrations emanating from this thumper. Maybe Yamaha is adhering a little too closely to the ideals of its predecessor (it does come oufitted with a center stand). We’ll know more following the North American press introduction in early June.

Consumer models are also expected to arrive in June with an MSRP of $5990. Stay tuned for more information and full evaluation come summer solstice.

2015 Yamaha SR400 Specifications

MSRP $5990
Engine Type Air-cooled SOHC, 2-valve
Engine Capacity 399cc
Bore x Stroke 87.0mm x 67.2mm
Compression 8.5:1
Fuel System Fuel Injection
Ignition Transistor Controlled Ignition
Transmission 5 speed
Clutch Multiplate wet clutch
Final Drive Chain
Front Suspension Telescopic; 5.9-in travel
Rear Suspension Swingarm; 4.1-in travel
Front Brakes Hydraulic disc; 268mm
Rear Brakes 150mm drum
Front Tire 90/100-18
Rear Tire 110/90-18
L x W x H 82.1 x 29.5 x 43.1 in
Seat Height 30.9 in
Wet Weight 384 lbs
Wheelbase 55.5 in
Rake/Trail 27º / 4.4 in
Fuel Capacity 3.2 gal
Claimed Fuel Economy 66.2 mpg
Colors Dark Grey Metallic

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