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1-19 of 22 Results
  1. Engine Discussion
    Recently I had bought a 1985 CB450SC Nighthawk and had noticed the carbs were dirty/clogged. I took the carbs off and cleaned the jets, the bowls, the accelerator pump and just about every part of the carb was sprayed with carb cleaner. When I reinstalled the carbs I also had the stock airbox...
  2. Wanted Parts and Bikes
    Hello, my beautiful freshly rebuilt carburetors were mistakenly taken to the landfill while I was out of town. Sigh… I know I cannot find this same VB22A carburetor easily and in the same condition for $150, however I would appreciate ANY leads on finding another one that I can rebuild. Even if...
    $150 USD
  3. Fuel Supply and Carburation
    Hello all! So I'm trying to get my '82 CM450A going but snapped off the head of the main nozzle (at least that's what the parts sheet calls it) inside the carb. I've tried to drill it out but the drill bit is walking off sideways and damaging the carb body to the point that I think it's probably...
  4. Fuel Supply and Carburation
    I am rebuilding the carbs and damaged the exterior of one slide while removing an old diaphragm. There is a small (~0.5mm) gouge near the top edge and two small nicks in the edge itself nearby. The slide will not drop fully into the carb as there is a bit of metal protruding from the gouge...
  5. Fuel Supply and Carburation
    Hi All, Looking to rebuild the carbs on my 1978 CB400A Hondamatic. Searching partzilla for carb parts and it looks like there are multiple part number for several parts (floats, jets, etc). Can anyone help me understand what the differences are and which part numbers I will need...
  6. Engine Discussion
    Here is a problem that has got me stumped. I have been riding, albeit not too often, this little Honda. I put it together from boxed parts and the help of a student. I rebuilt the carbs which are supposed to be good copies of the originals. Adjustments are on the same side so you need a long...
  7. Fuel Supply and Carburation
    tGood morning all! I recently rebuilt this cb350 engine and cleaned the carbs (replaced diaphragm). When in 1st and second gear it is noticeable that it will not continue to accelerate even over as much as 3000rpm and it just holds and flutters. My assumption is and air leak but I did have a...
  8. Fuel Supply and Carburation
    I have a 1978 Hawk TII with a VB-21B carburetor that I am trying to clean/rebuild because it was sitting for three years with fuel in the carburetor and it runs very poorly. I was able to remove and clean most of the jets and jet needles but am having trouble figuring out how to remove the slow...
  9. Fuel Supply and Carburation
    Hi everyone I hope this post landed the right place. My question is, where would I be able to find carburator main jets, for my CB 450 S. Are the main jets universal (I know that there is different jet sizes, that regulate the air/fuel mix, that's the point of main jets), so any honda CB 450...
  10. Fuel Supply and Carburation
    I purchased a 1976 CB200 a few weeks ago as my first bike. I knew it didn't run, but I was excited to pick up a new hobby of working on bike engines. I got my license ten days ago - and haven't gotten to ride yet! I've cleaned the carbs and replaced the jets and gaskets. At this point I think...
  11. Fuel Supply and Carburation
    My CB175 has had some problems for the past year or so. It gets stuck at high revs, have to downshift to get it to come down. I thought this might be a carburation problem. I went through Steve/Spring66's advice about CB175 carburetor adjustment. I thought I'd try this before doing a full carb...
  12. Fuel Supply and Carburation
    Has anyone had issues with their stock 71 cl350 choke turning on(lever up) while riding? I guess its not a huge deal, but it is irritating losing power every 3 minutes because the vibration just moves the lever up on its own and i have to bring it back down every time while i ride. Is there any...
  13. Fuel Supply and Carburation
    My dad and I are working on a 1981 Cm400A recently bought a pair of VB24A carburetors to replace the original ones which were broke. I have been looking for a rebuild kit to go though the thing, and poking around here I have herd aftermarket ones may not have the right jet sizes or vary...
  14. Fuel Supply and Carburation
    I recently traded some art for a 1978 Honda Hawk CB400 (TI - I think). It has been sitting for years, and much of the bike was disassembled in a Tubberware container, along with water, thus much rust and corrosion. Upon looking into the carburetion, taking apart what I could manage through the...
  15. Engine Discussion
    Here we are again. Back story is I'm currently building my first CB450 Chopper and am moving along at a snails pace all of the sudden. I've done plenty of research but feel free to share any info/posts that I may have overlooked. Here's what I've done thus far and still can't get it to kick...
  16. Fuel Supply and Carburation
    Hey everyone, new here. I'm a college student in central MA and I grew up working on engines, but I just recently got into working on motorcycles..very cool machines. What I have on my hands is a 1971 cb450 k4. I bought it in decent shape and have been riding it strong for about 4...
  17. Fuel Supply and Carburation
    I've been getting my 72 cb450 back up to speed for this spring, after fixing the front brakes and a flat tire I thought it was ready, then I found that it won't go over 60 mph. Once I hit that range it loses power and can't climb any higher. I figured I just had to adjust the float levels now...
  18. Engine Discussion
    OK, so I am sure this is supposed to be the easy part of reassembly based on how little coverage either of my shop manuals give to this issue, but .... can anyone send me a photo or two and describe where the 2 throttle cables connect to the carb and how the choke connects? It has been too long...
  19. Fuel Supply and Carburation
    Today I removed and disassembled the carburetors on my new (to me) 1975 CL360. Turns out that both of my carb diaphragms have significant tears in them and will need to be replaced. As far as I can tell there are two sources to for buying replacement diaphragms: JBM: Keihin CV carburetor...
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