from engine to podium, No Shortcuts.
why choose
FZ Shifter?
FZ Shifter provides the rush and power of a shifter kart experience with simplified ownership. We provide the only platform that scales from cadet to adults, starting with our FZ65 program designed for cadet drivers, the only program of its kind! Our next step is our FZ85 shifter designed for the junior age group, before finishing with our FZ125 shifter for the ultimate in speed and fun!
Are you tired of those confusing and overpriced shifter platforms that keep changing? You're in luck! FZ Shifter offers the most reliable and user-friendly shifter platform you can find! Plus, we’ve got a convenient lease program that makes it even easier for you to get started.
Get ready to shift into something amazing!

“Being able to provide a quality, high performance and low cost of ownership shifter platform is our goal. Our partnership with Yamaha Motor Co. combined with the knowledge of our team to develop our simplified and high quality auxiliary kit , delivers on our promise to the entire market. You choose the chassis you want, and simply install your FZ SHIFTER!
FZ SHIFTER
ERIK DOAN
SKUSA pkc | FZ SHIFTER 85 WINNER
Engineering your next victory.
DID YOU KNOW FZ SHIFTER ENGINES SHIP FOR FREE? WHETHER YOU PURCHASE OR LEASE, Free shipping is OUR WAY OF SAYING, WELCOME TO THE FAMILY!
[01]
free shipping
2-5
day delivery
(Lower 48, USA)
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lease program
details
Not sure if purchasing an engine kit is the best solution for your budget right now? Don't worry, we have you covered! With our FZ Shifter Lease Program, starting at $277.72 per month, you can sign up for our unmatched lease program and in no time you'll be grabbing gears and feeling the thrill of FZ Shifter!
special offers in our store
FOLLOW US oN social media
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Definitely more shift right there 🤌 #MoreShift #karting #shifterkart #kartengine #kartracingButton
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Erik Doan winning in the FZ 85 @superkartsusa 🏆 #MoreShift #karting #shifterkart #kartengine #kartracing #skusaButton
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FZ 65, FZ 85, FZ 125 shifter kart engines ready to deliver to you straight from the FZ Shifter warehouse 📦💨 #MoreShift #karting #shifterkart #kartengine #kartracingButton
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“More Shift” T-Shirts available at the FZ Shifter store! 🤌Button
frequently asked questions
Are your engines covered by a warranty?
Racing is exciting and unpredictable, and we understand that your FZ SHIFTER investment represents a significant commitment.
Thus, we provide a 30-Day warranty from the date of purchase on any manufacturing defects only. Regardless, any warranty questions or claims are only accepted on engine kits that have been registered and are subject to the warranty process only.
How do I care for my engine to keep it in good condition?
Do the basic, clean the exterior with simple engine cleaner or even a water-soluable mix. Visually inspect your engine, keeping it clean makes this easy
Make sure to always pre-mix your fuel and oil, and coolant is always in your radiator.
Give it time when first starting your engine to allow the water in your cooling system enough time to warm to operating temperature before going flatout!
How much oil do I mix with my fuel?
Good question! First, we recommend only using a racing fuel that is 98 octane and above, preferably 110 and above. The oil should be a high-quality synthetic racing oil such as XPS, ELF, or even Motul.
The ratio of oil to fuel is 32:1 or 3%
What's the right jet setting for my carburetor?
Don't worry, once you unbox your FZ Shifter, there will be a sticker on your carburetor box with instructions. It's simple, follow our lead and focus on driving and having fun!
Do you offer international shipping?
Unfortunately we do not offer international shipping. We can ship our FZ SHIFTER engine kits to anywhere in the United States!
What is your return policy?
We do not accept returns unless authorized. If authorized all returns will be subject to the terms in our return policy.