As I showed in a previous post ( My Nibbi PE30 Carburetor TBR7 Upgrade Shopping List.), I just received my order for upgrading my TaoTao TBR7’s carburetor. At this moment, I have a Mikuni (clone) VM-26 carburetor installed. The VM-26 carburetor was an upgrade from the original stock carburetor. Now I am moving on to a Nibbi “racing” carburetor.
The Mikuni (clone) carburetor was a drop-in upgrade for the TBR7, but this Nibbi carburetor requires additional items. Please read my previous post to see my shopping list for preparing for the latest upgrade. See Post: My Nibbi PE30 Carburetor TBR7 Upgrade Shopping List.
NOTE: I finally got around to installing my new Nibbi Carburetor on my TaoTao TBR7. Here is the post: My TBR7 Nibbi Carburetor Installation Instructions (Hawk 250 info).
What’s In The Box, Man? A Nibbi Carb!
I love that movie.
I Bought A New Nibbi Racing Carb For The TBR7.
First and foremost is the actual Nibbi Carburetor (PE30mm). No, duh here, and I opted for the ‘duller’ looking, grey model. This version seems like a bead-blasted matte finish and black controls. Yes, the prettier model; I went with the uglier carburetor, a shiny black body with polished red controls.
I loved the prettier Nibbi Carburetor (PE30mm), but I felt it didn’t fit the typical Chonda-look. Let’s face it, the TaoTao TBR7, RPS Hawk 250, and other Chonda-Cousins don’t look pretty, and these are not brightly colored KTM’s or clean-looking Honda’s. So the duller version Nibbi carb will fit my TBR7 very well.
Heck, my TBR7 doesn’t get washed unless I ride through puddles. Oh, riding through the puddles is the washing. 😀
Brief Quick Look At the Nibbi Carburetor.
The Nibbi Carburetor Idle Screw Is Now A Knob.
The Nibbi comes with a knob to adjust the idles screw. This idle screw controls the minimum RPMs of the motorcycle engine by not allowing the throttle to go closed further than the screw tip. A knob on the idle screw is a sweat option and makes common sense.
Too often, after riding my TBR7 a while, I would come to a red light, and the motorcycle RPMs were off. I keep a tiny screwdriver in my right pocket to ‘tweak’ the idle screw and readjust the idle RPMs. I look forward to not riding around with a small screwdriver in my pocket, and I imagine one day I was going to stab myself with it.
The Nibbi Carb’s Air/Fuel Screw Is Accessible.
I will cover this air/screw feature later, but quickly, the air/fuel screw seems to fine-tune the idle mixture and works with the pilot jet. On this Nibbi Carburetor, the screw is on the inlet and looks accessible after the carburetor is installed.
On the Mikuni Carburetor, I have a ‘clone’ VM-26 installed, the air/fuel screw on the outlet of the carburetor. Being on the outlet isn’t a problem; it just works differently than an air/fuel screw on the inlet(again will cover this better later). What is a problem? On the Mikuni Carburetor, the air/fuel screw isn’t accessible to me once installed.
To add to the problem of adjusting the air/fuel screw on the Mikuni Carb, the carb is installed via a bolted flange. This bolted flange prevents the carburetor from rotating while installed on the motorcycle. On other motorcycles, if it was a clamped boot, you can loosen the clamp and rotate the installed carb to access controls under the carburetor. Not with the TBR7 and its stock carburetor setup. This Nibbi carb looks better and better the more I look at it.
The Nibbi Carburetor Choke Is Different.
On my Mikuni carburetor, it’s a lever on the side. This Nibbi Carburetor seems to have a knob you lift and locks in place. Weird.
The function of a choke on the carburetors is to allow for a higher fuel/air ratio when needed, like a cold start. The Mikuni does this by restricting flow, a choke flap, but the Nibbi Carb’s choke seems to increase the fuel/air ratio by allowing more fuel downstream of the carb.
Again, I will get more into detail about the very interesting carburetor. I just wanted to cover the unbox, and I have rambled on too much so far. I am impressed with this new carburetor, and I am very hopeful to have a better-running TBR7 motorcycle. Fingers-crossed.
Extra Nibbi Carburetor Jet Parts!
You can’t beat getting extra parts of any motorcycle upgrade to help fine-tune the components for your bike. The Nibbi Carburetor comes with additional main jets and one pilot jet.
It seems that carburetors are affected by temperature and altitude, so having these extra parts will significantly help with the upgrade. However, if you looked at my other post (My Nibbi PE30 Carburetor TBR7 Upgrade Shopping List.), I picked up additional jets. However, I am happy to see the carburetor comes with some to start tuning it.
I plan on covering and experiencing jetting a Nibbi carburetor (PE30mm) when I get around actually installing the carburetor. Stand by.
The Installation and Operation Instructions!
Now, if you are familiar with my adventures of installing the oil cooler on my TBR7 (Previous Post: New Oil Cooler Installation For My TBR7.), the oil cooler instructions came in Chinese only. So when I opened the box and found these instructions I was concerned.
Good news, I unfolded the paper and found the inner side had the carburetor instructions in English.
After my happiness of finding the instructions in English, I felt initially let down that it was only one page. After looking more at the single page, it had so much valuable information related to the tuning of the carburetor. I am glad I decided to move forward with getting a Nibbi Carburetor. As a customer, I feel I am getting real value in this upgrade.
I hope I’m not let down after installing it. :/
The Icing On the Carb-Cake!!! Stickers!
You can’t have a dual-sport upgrade component without getting stickers!!!!
Nibbi sent not one but two stickers! Have to love a company so proud of their parts they give you a way to advertise their name on your bike.
FYI: The Nibbi Website: https://nibbiracing.com/
Wrapping up.
After I updated my motorcycle from the stock TBR7 carburetor to the Mikuni carburetor (clone) VM-26, I felt instant power from the engine and personal power that I now could fine-tune the carb. The stock carburetor is sealed, and upgrading the TBR7 carburetor allowed me to fine-tune the engine power.
I now have moved onto the Nibbi Carburetor (PE30mm), a ‘racing carburetor.’ Just opening the box has excited me. Not because I like to spend money, but I like to spend money on actual value.
I look forward to this motorcycle upgrade. I hope you follow along and find out if I made an excellent purchase getting this new carburetor and investing my time installing it.
Future Posts.
The Nibbi “Racing” Carburetor (PE30mm) is fantastic, and I haven’t installed it yet. So you can figure my future posts will be about installing the carburetor and later a review of the installation and TBR7 performance changes. I figure I can’t extract more horsepower from the engine without porting the engine or moving on to a big bore kit.
If I get better reliability out of the motorcycle and the ability to fine-tune the carb while it’s installed with seasonal changes in temperate, I will be happy.
Please follow along, and I will keep you updated.
Ride Safe, Ride Fun!
