1. D

    Brand new huasheng carburetor wont run without choke - source of issue discovered. The throttle control bit has an air leak. How do i go about solving

    First of all i'd like to extend a warm 'f*** you' to Their customer support is non-existent and i've been ignored consistently. here's a picture of the part i mean, since i dont know the name. I skimmed some information from various websites and learned that i can use carb...
  2. Sitherus

    eBay carburetor air leak proof?

    I bought a carburetor on eBay because my delarto sha clone was making me lose power. This carburetor is supposed to be better. I bought it and it said 3 day shipping, it took 2 weeks to arrive and came in a smashed box with a cracked air filter housing. When I put it on the bike it turns on...
  3. J

    Dellorto Carb

    Replaced my nt with a dellorto and now I have a good idle, maybe a little high but sputtering mid range and bogging high end. I've lost considerable power and speed. Any ideas? Jet?
  4. S

    Performance Carb Jetting

    I bought an HP Performance carburetor for my 2-stroke motorized bicycle to replace my NT carburetor. As of right now, my NT carb blows the performance carb out of the water. I'm guessing a jet issue? It cranks right up but, lacks power, torque and top speed. Anybody have ideas about what jets I...
  5. S

    HP Performance Carburetor Jetting

    I bought an HP Performance carburetor for my 2-stroke motorized bicycle to replace my NT carburetor. As of right now, my NT carb blows the performance carb out of the water. I'm guessing a jet issue? It cranks right up but, lacks power, torque and top speed. Anybody have ideas about what jets I...
  6. F

    High Altitude carburetor?

    Any one know of any carburetors that work at high altitude for a 66cc motor? I'm a large guy who wants more go out of his set up, but am new. I have been told that a carburetor is a good upgrade both for power and responsiveness but wont work at my altitude of 7,083′.
  7. Drop a Gear and Disappear

    Troubleshooting a Huasheng 4-stroke Engine

    Hello I'm Matt, a new member to this forum, however I've been working at this motorized bike for close to 3 years now and I've only got it running a hand full of times unfortunately. First a little bit of background about the bike. I first purchased the Huasheng 4-Stroke engine...
  8. Ollie

    Huasheng choke/carb problems

    Hi guys, I have a relatively new Huasheng 49cc which had been working fine at first and I was very happy with it. Yesterday though, after a long stretch of full-throttle riding when I was late to work, it developed a weird problem. When the engine is hot or cold, it won't start in either choke...
  9. S

    HP carb problem

    so i bought one of those hp carbs of ebay. watched a few tutorials and then put it on my bike. it started up and everything seemed fine but after driving a while i noticed that the bike had lost power instead of gaining power. picture of the...
  10. Matt Barrack

    Carb Leaking

    I just filled my bike with gas for the first time. I was priming it and then after a few pumps, fuel started coming out from the primer and from under the air intake. Anybody know what is going on? This is my first project and I know how engines work but I'm no specialist. Thanks in advance. :)
  11. Candie

    For Sale Whizzer motor, carb + parts

    Please view items and contact me if interested in purchasing parts. My father was a classic motorbike collector and we have many parts that we are now parting with since his passing. To my knowledge all parts appear original and in good condition. Garage kept in shelving units and containers...
  12. Cozmik Mezzenger

    How to Tune Carburetor

    Link to Video
  13. cmb271

    Oil and fuel mixing carburetor?

    This question plays into a bigger question I've been pondering all day at work on "what would the most technologically advanced 2-stroke motorized bicycle look like". Does a carburetor currently exist that mixes the oil and gas for you and all you simply do is select the ratio you'd like to run...
  14. Frankenstein

    Cns carburetor jets

    Don't give me crap about Cns carbs they run really nice and the new ones with 4 tubes are also very nice as long as you plug off the air inlet tube that is commonly hooked directly to the overflow tube (wtf are people thinking) and block off the second tube closest to the air filter (it's not a...
  15. D

    Huasheng 142f problems

    I have a a brand new huasheng 142f and it's completely stock besides the gas tank. I had to remove the stock one because it was rusty on the inside which clogged the carburetor. I replaced the tank with a pit bike tank. I cleaned the carburetor with carb cleaner and put it back on. After that I...
  16. P

    Engine Trouble Engine bogging at low rpm then possibly runs lean at high rpm

    Alrighty where do I begin. I finally got my bike out of storage for the winter a month ago (it has a Grubee Skyhawk GT5A installed) after giving it the once-over twice I got it running nicely, no problems for the first couple of tanks running at a 25:1 ratio. After letting it sit for a couple...
  17. T

    Re jet? Or new cdi? Or exhaust?

    Okay so ive learned a lot about the motors but still can't quite get the tuning down. So I have standard Chinese 68cc on a 90's road master. I have performance carb with size 66 jet installed, when I bought the carb I also bought sizes #66 #67 #68 #69 #70. My question is in regards to...
  18. K

    Carburetor Positioning?

    I have a 66ccSquareHead Grubee Skyhawk engine that I am currently installing on a bike, and have come across my first hiccup. The carburetor air intakes hits the seat post, however it could fit if I turned it an angle (about 15-20 degrees). Would the carburetor still function properly if I did so?
  19. SRPM

    New engine need info

    Just got the gt80 from and I'm having trouble finding any info on it. It has a Super Charge CDI for 48cc 66cc 80cc - High Performance - A Ported cylinder - High Performance Reed Valve - Balanced Crank - High Performance CNC Head - Keihin Carburetor clone The carb it the biggest...
  20. Sitherus

    How do i check for leaks if i cant idle

    Hi Im new as of this second to this site though i have been on browsing in the background learning as much as i can for some time now I have an engine that wont idle. It must have an air leak but i dont know where. I know i need a spray bottle and run the engine to look for leaks but the only...