SmartCarb For Husqvarna 300
$749.00 – $849.00
Sharp lines and a smart design ethos. We fit right in!
This SC2 model SmartCarb replaces the stock Keihin PWK or Mikuni TMX in 300cc Husqvarna dirt bikes, offering unparalleled performance, efficiency, and ease of use.
Choose the 36mm size if you spend more time at low revs riding trail, woods, singletrack, enduro, or tight/technical conditions where the bottom end or low speed is a priority. Choose the 38mm size if you spend most of your time in the upper throttle range, riding motocross, GNCC, supermoto, desert, or if you are snowbiking.
Every SmartCarb ships pre-adjusted specifically for the bike for which it is ordered. Please provide information in the forms below about any engine/exhaust modifications, how you ride (riding style), and what fuel selection and oil premix ratio you use.
Questions about compatibility, sizing, or fitment? Contact Us!
Products shipping internationally may be subject to import duties/taxes.
Description
The SC2 SmartCarb is a precision metering instrument that provides extremely fine fuel atomization, precise mixture control, and air density compensation in a single circuit, jet-less fuel system.
- CNC billet aluminum construction
- Patented single fuel circuit design
- Extremely fine fuel atomization
- Optimal air/fuel ratio control
- Designed & manufactured in the USA
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Daryl Underwood –
This carb totally changed the performance of my 2017 Husqvarna TE300. I put the carb and bike to the test on a 4-day ride at “Lorretta Lynn’s Ranch” near Nashville TN. The first day was 80 degrees and extreme dust. The second day was a soggy mess with HEAVY rains and extremely muddy trails. The third and fourth days were cold with 35 degrees temper drops from the 80 degrees on day one. All these conditions would have changed the performance of the stock carb, but the SC2 performed flawless. This has been the single best performance upgrade that I have put on my bike. The response from the carb makes the bike feel like it is an electric motor. These 300 two-strokes are known to lug, but the SC2 puts the lug ability to a whole new level. I highly recommend that you check your handlebars and clamps after installing the SC2. I literally pulled the triple clamps loose from the snap on the first day of riding. If you are considering buying this carb, DO IT.
Slade Putman –
I ride a ’16 TE300 Husky in Colorado, and Utah primarily, on gnarly singletrack at altitudes that range from 7,000′, down to 4,000′ (Moab) and up to 12,500′. The stock Keihin could be jetted well to run crisp at any particular altitude, but move 2,000′ up and it would get boggy and not have the response needed to snap over obstacles, or if going down 2,000′ it would be too lean to be safe; either case requiring rejetting. It made the 300 not much fun on the really difficult stuff, but I didn’t want to go the four-stroke 450/500 route of my friends – heavier, maintenance-intensive, costly, etc. I recently did the Rimrocker Trail, just for the scenery sake, with a friend on his KTM500EXC, fuel-injected. My jetting was set for 7,000-9,000′ before I started, so I had to rejet to 5,000-7,000′. The Rimrocker Trail is 200 miles offroad from Montrose to Moab, going from 5,000′ to 7,000, down to 5,000′, up to 10,000, then finally down to 4,000′. To protect from seizure, it has to be jetted to run at Moab altitudes (4,000′) and temps, or, re-jet several times during the ride, which is tough out in the field and wastes time. The result is a boggy bike most of the ride. My friend’s injected 500EXC rode perfectly all day. Tired of this. I checked into SmartCarb, since I had know about Lectrons since I began riding in the early 70’s. To make this long story short, I called Nathan to test him on his knowledge. He CLEARLY and totally understands fuel delivery, carb design, etc. I bought the SC2 36mm and just came back from 4 days riding the Calico and Priest’s Gulch trails near Telluride, and several others. The SmartCarb SC2 is amazing. After a small amount of fine-tuning with the clicker and idle set screw, I had it dialed in. Under the worst trail conditions (12,000′ altitude, steep tight trails with gnarly big rocks to get over), it had immediate, strong response, barking and pulling like you wouldn’t believe. No matter wanting or needing a 450 or 500 to handle the steep inclines, big rocks and high altitudes. It would not stall, no matter how much ridiculous load and low rpms I tried to kill it with. I thought I’ll take it down as far as it will go to see what will kill it. Far beyond what is reasonable, even then, when it didn’t have enough pulling power to make it, I downshifted and it ran perfectly clean – amazing, no loading up or bogginess. Way better pulling power, predictability, snap, grunt and responsiveness than with the Keihin, and this is at EVERY altitude, all day long. In some open meadows, I opened it up hard to see how it ran. Amazingly, it ran very clean and strong, like it was jetted perfectly for the altitude. It almost pull like an open-class two-stroke would, and this is just a 300. To top all this off, on one of my rides I calculated my mileage to see how my range would be affected and it turned out to get between 45 and 48mpg when staying out of the powervalve. That increases my range substantially. I have a whole different perspective on this 300 in these operating conditions now, due to the SmartCarb SC2. I highly recommend going to one and couldn’t be happier.