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ADV NewsSuzuki Ready To Add Fuel Injection To The DR-Z400?

Suzuki Ready To Add Fuel Injection To The DR-Z400?

The Y2K-born dual sport could finally be getting a major upgrade.

Published on 09.19.2024

Some things age better than others, a fancy round of cheese for example, or an expensive scotch. Motorcycles though, not so much. Consumers expect their favorite models to march through generations in step with evolving technologies. And then there are the anomalies, bikes that keep selling well in part because they remain old school. Suzuki’s Y2K-born DR-Z400S is a perfect example, a dual sport that remains a favorite for its balanced capabilities,  simple and reliable construction and approachable price. 

Since 2000, the bike has seen few upgrades, save for the addition of fully adjustable suspension, and nothing as remarkable as that since the early aughts. Looking at newly filed patents published by the U.S. Patent and Trademark Office, however, it appears Suzuki is finally ready to take the DR-Z400 into the 21st century by adding electronic fuel injection and ride-by-wire throttle action. While a few old faithfuls will be sad to see the carburetor go, many more will be excited by the possibilities EFI brings, including the addition of power maps, ride modes and improved fuel efficiency. Who knows, there could even be cruise control. 

Suzuki DR-Z400 Fuel injection patents

We can see the exhaust has been rerouted to make space the EFI system, and while the engine does look like the trusty 389cc liquid-cooled DOHC single, there’s no reason a bump in displacement is out of the question, especially when considering how common aftermarket DRZ big-bore kits are on the market. 


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Another hope many fans of the DR-Z400 hold dear would be the addition of a sixth gear, or at least a revised ratio, though nothing in these images hints at that update. Perhaps if Kawasaki had upgraded its KLR650 to a six speed gearbox when it was resurrected in 2022 Suzuki would feel more pressure to invest in that department. 

Suzuki DR-Z400 Fuel injection patents

The mockup’s frame and tank shape look traditional, but we can see Suzuki is sprucing up the bike’s chunky 90s vibe with some modern styling cues that look to be inspired by the company’s RM-Z dirt bike family, including the shape of the muffler.  

The drawings also leave a lot to the imagination. The rendered bike’s headlamp assembly and cockpit is a mystery, as well as potential changes to the ergonomic triangle or suspension. 

We would expect much of this popular dual sport bike to remain the same, a rock solid, yet no frills formula that helps anchor it to an approachable price range. In 2024 a new DR-Z400S set buyers back $7,199. For contrast a new DR-Z400S in the year 2000 was $5,349.

Suzuki DR-Z400 Fuel injection patents

In an interesting twist, a look through Suzuki’s website and its recent new model press releases confirms the maker hasn’t announced any DRZ400 models in its 2025 lineup, including the specialized DR-Z400SM SuperMoto that’s been a fixture in the DR-Z family since 2005. This could only mean one of two things, there will be a major standalone reveal of an upgraded DR-Z as Suzuki leans into the model’s 25 year anniversary, which might even come as a mid-year model release, or less likely, 2025 will be a gap year for the DR-Z400 line. 

Either way, you’ve got to hand it to Suzuki for producing a machine back in 2000 that would become an instant legend and carry that status for a quarter century. 

Suzuki DR-Z400 Fuel injection patents

And of course it was no accident. Suzuki will forever be remembered as one of the pioneers of the on/off-road segment, dropping a whole line of dual sport bikes in 1990, that included the venerable and still beloved DR650, at a time when the categories of off-road and legal on-road riding were just beginning to overlap.  

And yes, Kawasaki’s KLRs were already lighting up trails with their street-legal headlamps as early as the mid-80s, but Suzuki will be remembered as the company that really got its hands dirty shepherding the dual sport movement with its heavy involvement in the creationtion of regional, dealer-supported rides, as well as its conjuring and support of The Suzuki DualSport Riders Club, whose collective voice directed the manufacturer to develop the DR-Z400S we still know and appreciate to this day. 

Author: Jamie Elvidge

Jamie has been a motorcycle journalist for more than 30 years, testing the entire range of bikes for the major print magazines and specializing in adventure-travel related stories. To date she’s written and supplied photography for articles describing what it’s like to ride in all 50 states and 43 foreign countries, receiving two Lowell Thomas Society of American Travel Writer’s Awards along the way. Her most-challenging adventure yet has been riding in the 2018 GS Trophy in Mongolia as Team AusAmerica’s embedded journalist.

Author: Jamie Elvidge
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gMasta
gMasta
September 19, 2024 11:59 am

I was saying for few years – make klx250s to 300cc with 30+ HP and I buy it again but no, they had to make it weak again with mere 24hp, so now if drz-400 will get 6 SPD and Fi – i’m buying this one, will stand in line for it

Troy
Troy
September 19, 2024 12:23 pm

I’m surprised an EFI DRZ wasn’t realized years ago. The engineering and components were completed and implemented on the since retired LT-Z400 Quad Sport over a decade ago. I suppose they may have waited until reworked was basically forced upon them. Remember, the DRZ is no longer sold in several countries already due to lack of ABS. To wait and make 1 capital investment and ride that out for the next few decades is par for the course with Japanese dual sports.

Joe John
Joe John
September 21, 2024 12:14 pm

Switchable ABS, EFI and 6th gear and I would seriously consider this bike.

John
John
September 21, 2024 6:44 pm

The DRZ is one of my favorite bikes I’ve ever owned. A lower first and higher fifth gear, improved suspension, a bump in displacement and 40 wheel horsepower, keeping the weight around 300lbs and the price under $8k would be my wishlist. F.I. improved suspension and ABS are the likely upgrades, which will keep my DRZ in the garage, in no fear of replacement. A guy can dream though.

Kai
Kai
September 21, 2024 9:31 pm

Now that they finished the Vstrom line project, the two engineers and the one lonely designer at Suzuki finally have time to take care of the drz. Sadly there is no mentioning of abs, so this would be a non-EU model only.

Eric
Eric
September 24, 2024 8:49 pm

I think it’s unlikely they’d go to this trouble if they weren’t planning on reentering the European market, so I expect switchable ABS. I hope they’ll re-do the gear ratios, as it’s unlikely Suzuki will give the bike a new transmission.

J Dunn
J Dunn
September 25, 2024 10:33 am

It’s too bad that Harley Davidson has forgotten its roots. I have given up the American standard for the fun of dual sport.

Jeff Kotowski
Jeff Kotowski
September 25, 2024 11:57 am

The one “must have” is the long oil change.

Dazza LaPooh
Dazza LaPooh
November 4, 2024 8:42 pm
Reply to  Jeff Kotowski

Shorter oil changes ensure better engine protection therefore longevity.
Anyone can state longer oil intervals doesn’t mean it’s good for the engine. Don’t be tight a couple of extra oil changes is far cheaper than a complete rebuild. I seen it all before.

John
John
September 25, 2024 12:18 pm

Another great article Jamie. Long live the DRZ

Greg
Greg
September 25, 2024 3:08 pm

Haven’t seen it mentioned but the patent drawing also shows USD forks?

Barry
Barry
September 26, 2024 5:45 am

Oil capacity was substantial in the old DRZ and service intervals were longer. I suspect this is going to be a CRF450RL competitor with short service intervals.
Here’s hoping it will have reasonable service intervals but I’m not holding my breath.

Jose' Maestas
Jose' Maestas
September 27, 2024 4:54 pm

I love my DRz, but I hated the small tank. By putting an aftermarket
tank on for extended range, kind of is rough with fuel injection.

Rob
Rob
September 30, 2024 12:57 pm

If they would add EFI to the DR650 and change little-to-nothing else, I would buy one to replace my current DR650. A6th gear would be nice but I’d really rather they just left it alone as much as possible.

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