The Best Carb Money Can Buy? | SmartCarb SC2

The SmartCarb SC2 automatically compensates for altitude without changing jets, makes more power and uses less fuel in the process. But is it the best carburettor money can buy or better than a Lectron carb?

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[daos]

the catch? the price, obv. as for planet killing – enthusiast bikers, classic car drivers etc. are not the problem. we're a quite sustainable drop in the ocean compared to the real problems.

[TornadoCAN]

In the pre-FI era, it was common to use a Gunson Colortune see-thru sparkplug to visualize the colour of the fuel burning. You then tweak the carb mixture screw and or needle to get a nice blue hue for near ideal mixture. Too yellow means too rich, too white means too lean.

[romteb]

Those big claims about fuel economy and power need to be tested, i'm extremely skeptic

[doubledragon]

Smart carb has the best customer service hands down. I reached out after buying one second hand. They helped me thru multiple detailed emails, to get it setup, knowing full on I bought the smartcarb used. Cleaned up the mid range huge on my YZ285 big bore.

[PNWEnduro]

Good video. I've been running the SC2 on my Sherco for close to a year now. I ride big elevation changes, one ride may be at 2000' and the next at 9000' so not having to make any adjustments and the increased fuel economy is huge for me. It's all the advantages of FI without the added complexity and still retains the performance and feel of a carb.

[Surestick]

Regarding those stripped screws on the Keihin, have you tried using a JIS screwdriver? Using a normal Phillips on JIS screws (like Japanese carbs) is a recipe for stripped screw-heads. They *look* the same but they aren't.

[nuthintoprove]

I have a lot of vintage motocross bikes. I've tried the Lectron on two of them before I heard of SC. After I had one running real good with the Lectron I swapped to a SC to see the difference. The SC works better by far and the ease of tuning makes them a dream to jet. Because as we all know, old bikes were close at best with their jetting. The SC got even the most fineky of them running so much better then I even thought possible. I also have them on my modern off road bikes, Beta 300, YZ 250, Beta 200. I'm my book it is the best carb made, period. I hope this helps. It will be $ well spent.

[joeduncan]

Have the SC2 on my 250 SX, thing was different right off the bat. Instead of being an uncontrolled powerhouse, my bike became gentle and easier to ride thus helping my lap times without losing any noticable power. Gas lasts me 1 week instead of 3 days. Def worth

[biondanishgenomeinstitute]

A CO-meter is best way to find the right click position .. get or find one for most performance. Minimizing CO will tell you the right fuel/air mixture (taking your fuel into account) and its surprisingly sensitive.

[DoctorMotorcycle]

The reason for this carb being "self adjusting" is the same thing that happens on a normal carb; the thinner air decreases the vacuum signal, less fuel comes from the float bowl, and the bike runs essentially normal. Often times, when you go UP in elevation, the only thing you need to do is increase idle speed a bit. I've gone from 1, 800 feet to 8, 000 feet on many different 2 strokes (with quad vent keihins and TPS's, I might add) and many different four strokes (CV style carbs found on LTZs, Predator 500's, FCR Carbs on 250/450f's, Mikuni VM's and TM's on my old school vintage bikes) and the only thing I've ever needed to adjust on the four strokes is the idle screw. The only carb's I've ever needed to change jets with to not foul plugs were 2-strokes with the Mikuni TMX 36's and 38's, which are notorious for being very finicky.

Maybe it's just me, but I don't understand how having only 1 main form of adjustment from idle to over-rev is an advantage. If you want the ease of adjustment, use a Dial-a-Jet on a normal carb, and save yourself enough money to do the next 3 or four top end jobs, lol.

[chrisroberts]

I have one on my KX500 and it was the best decision ever. Runs strong regardless of temp or altitude like they claim, starts easy, and always idles smooth and steady. Just up to you if you want to drop the $800. I'm glad I did.

[jmhofmeyr]

Just discovered this channel sitting in PTA...great channel and great carb...love that someone is improving the high maintenance design.

[NirHason]

That was a very well mdare video, mate!
I'm running the SC2 on my KTM 300 EXC 2017 for the last 2.5 years and that's the best thing I did for my bike (along with the suspension).

[TheSnuggs]

Great carbs, I imported one in 2014 & fitted it on my KX500, Corey from APT assisted me with the setup and it was quite straight forward. I did the quads4quads run from Carnival City down to Ballito without any issues related to the altitude changes. It’s worth the money. Great episode man, I recognized Rhino Park straight away.🤣

[Sanguine_Addiction]

Installed my SmartCarb on my 2017 YZ250X a few weeks ago and it's a night & day difference from the stock carb. Incredible performance!

[michaelcaddell]

I'm so glad my 150 came with this carb. It's so simple and the bike runs so clean.

[-JX-]

Never had an issue with older keihin style carb, could drive it in the summer just fine and when the winter came with snow and negative Celsius temps, I just went with bit richer mainjet and adjusted idle.

[kingcosworth]

The PWK is a great carb, I have a worked KTM 380, I had to bore the carb out to 39.5mm from the stock 38mm so I could jet it. I like having 6 adjustment points with the PWK, it took some messing about, a number of different needle tapers etc but the bike is now crisp everywhere over the throttle range.

[andymiller]

A very informative and educational video dude, done in an easy to understand manner! Well done! 🍻🤘💜

[maazahmed]

Just saw a video by fortnine explaining whether a carb is better or fuel injection. Would recommend.