- Description
Description
Want to turn your 2-stroke motorized bicycle into a performance racer? With the BBR Tuning 2-Stroke 66/80cc High-Performance Carburetor, you’ll drastically increase airflow and fuel delivery for more power, speed, and even better fuel efficiency out of your 66/80cc 2-stroke engine.
One of the biggest advantages of this carburetor is that it doesn't need any adjusting. This carburetor comes standard with an automatic choke that will release with throttle input once the engine is properly warmed up, and 78mm jets perfect for lower elevation racing. Just slap this carbon, fire the engine up, and in minutes you’ll feel increased acceleration and torque.
When your motorized bike’s in need of more power, this High-Performance Carburetor will have you flying down the track faster than ever.
Parts #13-15, 22-26, and 33-50 on the Fuel Components Diagram
The big advantage of using the High-Performance Carburetor is that it doesn't need any adjusting; you just slap it on and fire the engine up. Increases acceleration and top speed substantially. It has an automatic choke to realize the system.
Note: Throttle cable end will more than likely need to be filed down to accommodate the carburetor housing.
Specification:
- 78mm Jet Carburetor
- 59mm diameter connecting filter
- The semi-automatic strangler starting system
*This carburetor does not work in High Altitudes due to having the jet needle stationary.
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Customers praised the automatic choke and improved throttle response, with one saying it "woke my motor up nicely." However, performance results varied widely—some gained speed while others lost 7mph. Jetting adjustments often needed, especially at high altitudes. Installation can be tricky with cable compatibility issues. Quality is generally solid.
- This little carb woke my motor up nicely. Easy install. Choke release is a nice feature.
- Hit the gas & don't have to worry about taking your eyes off the road it's gas and go
- I like the response it has when you hit the gas.
This Carburetor came with the BBR Tuning Racing Series Stage 4 66/80cc 2-Stroke Engine Kit.
Love the curb appeal, just floods out (runs way too rich) at altitude over 6000 feet above sea level.
Not able to add a new "Jet" to run leaner, which I found in the 66/80cc High Performance Carburetor description catalog page, after my engine build.
Solution: I purchased the basic NT Carburetor, and some smaller numbered Jets; placed a 65jet and runs well.
BikeBerry does a good job when you call them by the way!
Perhaps BikeBerry will be able to warn buyers purchasing the BBR Tuning Racing Series Stage 4 66/80cc 2-Stroke Engine Kit, (i.e. ..."don't purchase if you plan on using above "X" feet above Sea Level), and include/recommend an alternative Carburetor?
Thank You,
Bernie
Tried it out seemed good at low speed, but waiting on jet kit, way too rich. Will let you know after re-jetting.
Never got it
I lost 7mph before I put this high performance carburetor my motorized bike was topping off at around 31 mph and cruising comfortably at around 26 miles an hour. I tested before and after and I even put my stock carburetor back and gained speed back
High quality
I like the response it has when you hit the gas.
Worked well hadda lil issue wit it not statin on at one point but fixed it
Good carb. it provides better fueling over the NT in my opinion. I have everything set up to run no choke so I can’t speak on the convenience of the automatic choke. It would be a five star carb but the guide is too long for the cable you get in most kits and required me to rob parts off the NT so keep that in mind.
Good carb, can't seem to find correct manifold for 5g 4 stroke engine
Love it. Hands free choke. Hit the gas & dont have to worry about taking your eyes off the road or burning your hand it's gas and go they should all be that way
Hello fellow Motorbike Builders!
I have a couple two-stroke Motorbikes and like we all do, built it stock, when I first started building Motorbikes! With a few simple modifications I went from 18 mph in stock form, to 42 mph max speed! I took the Head off, then the jug. I used a Dremel tool to grind the intake and exhaustports larger to .080 total…. .040 on all sides of the jug. Very simple process. I purchased the big round head, The Extreme cooling head, Bike Berry sells for $74.95. WELL worth the money$$. For best results used Bike Berry‘s expansion chamber muffler they sell for $69, it works the best, stock pipes are to restrictive! The bike runs so well that I used Bike Berry’s 30 tooth sprocket, and sprocket adapter, the Aluminum one that clamps to the rear hub. Yes 30 tooth! Very nice piece! Works really well! I have tons of power, torque and top end speed! 42 mph Max to date. Thank you Bike Berry! Ron McAteer
It's nice
It looks good, but I did not notice a difference in performance (it had a little more torque prior to changing out the gear after the carb swap). I also paired this with a smaller gear and flex pipe exhaust, but my 100cc still tops out at 23mph (sounds great though lol). Any suggestions on speeding it up would be helpful, I feel like I spent the money for no reason.
This is 4 th carb best Have to lean out to about 65 jet for near Chicago Il.
The stock carburettor seems to work better
My stock carb leaked, this one doesn’t. Be sure to remove the elbow bend before installing the throttle cable or it won’t work.
This little carb woke my motor up nicely. Easy install. Choke release is a nice feature.
Didn't come with instructions quality of carb is fine but no instructions on how to install. Had to disassemble to attach cable, Something popped up when it came apart no clue if that was what it was supposed to do. No set up instructions.
Buy from bike berry I highly recommend them.
Won't get to top end!
Products and service are great, but shipping charges are too high
Easy to install, better that stock.
ya looks good on the shelf missing some orings in to to manafold
great couldnt believe the difference I needed no rejet my china girl was stock but I got an this carb an angle fire head and ngk plug and after 2 days on my 1978 schwinn heavy duty I had to cut up an old innertube to put a layer of rubber between everything mounted to the frame so that jet is perfect for the mojave desert
love it Its a nice carb. Quality build and does add a noticable increase in power. It's tuned specifically for the china girls. Easy to installits a good buy
like the choke release The choke release is nice when the cable is in correct. Now I don't know anything moch about carburetors but I know it has to be the problem. The way I describe the problem is, the engine sounds like a four stroke and it's most likely getting TOO much gas. It should go ""yeen yeeen yeen"" like a two stroke. When I turn the bass off and ride for a couple blocks it sounds better
Good The carb is all together way better.My choke doesn't automatically release as it should but oh well. I had to rejet mine but it runs great know
I must have received a carb for a 49cc This carb is different than the others it has a slide mechanism instead of the needle and clip i'm used to once I got it installed it took a few rides to break in but I am definitely feeling the difference THANKS BIKEBERRY!!!!
yeah! good carb but the air filter is not the greatest.Like how the choke is automatic
way better than NT or CNS.. love it! You guys this is a 5 star carb... Great quality and performance differences to any one on the market, it tells you the jet size it comes with, brian shpuld have done his homework and been prepared to rejet... Totally not bikeberrys fault... I was having bogging issues and rough idles, it was a bit of a pain to mount with the stock cable but once i got it on it purred and roared... Great carb... Definitely worth every penny... Highly recommended... Thanks bikeberry for another great product!
