racing carb q's

rickie h · #1 11-12-2009, 10:29 PM

i see these huge new racing carbs and i hear a rumor that all new kits come with one...i have one of the old black plastic carbs and i was wondering if the new racing carbs were actually any better or worth any more...is there really a huge performance increase?could i just buy one and mount it on my old kit?can anyone fine one under $60? thanks all

**Bikeguy Joe** · #2 11-12-2009, 10:51 PM

A racing carb? For the chinabuilt engines? Why?
Link?

skjjoe · #3 11-12-2009, 11:13 PM

Zoombicycles Motor Bicycle Gas Engine Kits Addon - Racing Carburetor (5-2) | 4. Accessories (42) | Parts and Accessories | RuiHong Enterprises Ltd. zoom has them pricey. Click on the more info button. I have one it seem to held all across the rpm range i like mine others will tell you different,

rickie h · #4 11-12-2009, 11:18 PM

supposedly you get better power along with increased fuel efficiency and it handles rpms better

bairdco · #5 11-12-2009, 11:52 PM

increased fuel efficiency? you mean i can go 120miles instead of 110? lordy, what will they think of next?

you can probably get more or less the same results by match-porting your intake and exhaust.

if you want a performance carb, go with a mikuni or a dellorto. not too much of a price diff, but performance wise, huge. (so i'm told.)

a cheap china carb like the one from zoom, that costs half as much as a new motor sounds pretty lame to me.

skjjoe · #6 11-13-2009, 12:05 AM

Well mine did not cost that much .but i do like the way you can tune it a little more than the stock carb. It worked well for me. If where more than 50$ i would not have bought it. There are other things you can do to increase performance, but this is a bolt on and ride upgrade ,just like a expansion chamber or a slant head ,easy upgrades .If you want to really get into the engine yes porting would probably be the best cheapest upgrade. Oh and my mpg went down i little.Not much. Here is the dellorto .SHA 16.16 Cable Choke [D0-2150] - $63.18 : Dellorto Carburetors, And parts for you.

skjjoe · #7 11-13-2009, 12:09 AM

Oh heres spokytooths same carb Spooky Tooth Cycles - Motorized Bicycles: Gas Powered and Electric Bikes - CNS Carburetor for Motorized Bicycles with some reviews.but they are sold out.

bairdco · #8 11-13-2009, 12:16 AM

man, their site took forever to load....

i know there's a dellorto look-alike out there for half the price of the real one, but i can't find it right now. rock solid in australia has them, but i know you can get them cheap through moped shops.

i'll search for it later, i want some beers now.

skjjoe · #9 11-13-2009, 12:22 AM

here are some member posts http://motorbicycling.com/f4/cns-carburetor-5437.html

stv1jzgte · #10 11-13-2009, 12:32 AM

Not knockin anyone but i have a new grubee 48cc motor i broke it in on the NT carb then switched to the cns, grubee, Addon (Dellorto knockoff) whateva ya wanna call it, all the same carby.

I paid $60 AUD im happy and supprised that its cheaper hear in oz!

Anyway i have ported in the past (this 1 just matched) but never has a port job increased low end
torque like 1 of these babies.
Also on the ports, this Grubee motor has much bigger ports than any motor ive had before.
Maybe slower top speed as with the NT but the torque is awesome and would run rings around my old NT setup.

Fuel consumption is up not down.

Dont knock it till ya try it! 99% of what most of us are dealin with is cheap china crap.