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carb adjustment

  1. Engine revs to 4500rpm on start up

    Motorcycle Repair
    I have a first gen Honda Sabre V45, when started the rpms immediately jump to 4500 and stay consistent. I messed with the idle screw and the fuel/air adjustment screws and nothing changed. I think it may be the throttle getting stuck but I lubricated the cables and the spring seems to be...
  2. Kawasaki Ninja 250 Go kart slow returning to idle...

    Motorcycle Repair
    Hi all, I've recently started building a ninja 250 go kart, have got it running running fine, but have run into an issue, when I rev the engine it revs out fine but is very slow to return to idle, 15 seconds or so. I've sprayed starter fluid on the carb boots and this does rev out the engine...
  3. Tuning a Carb.

    Motorcycle Repair
    I have a 1981 Honda cb650. I have cleaned the carbs, checked float heights, and installed new needles. I can't get the bike to idle. If I choke it, it will stay around 3000rpm then shoot up to 5500 rpm. And when I push the choke in, it dies. I checked the temp of the pipes and the two on the...
  4. High throttle with "on" petcock

    Motorcycle Repair
    Hey guys, I am having some trouble with my carbs. I just took them apart and cleaned them, and have had trouble with them since reinstalling. When I start my bike with the petcock in the "off" position (starting the bike with just the fuel in the carbs), it idles perfectly. When I start my...
  5. 81 Twinstar bogging out

    Motorcycle Repair
    I recently bought an 81 Twinstar to go to and from work. I am currently have the issue where if I hit the throttle somewhat hard, it will immediately bog out. If I just accelerate gradually it is fine. After I cleaned out the carb I noticed the pilot screw was tightened all the way, I backed it...
  6. Twinstar bogging at open throttle

    First Bike / New Rider
    This may be the wrong forum for it, but I dont have enough posts to go elsewhere. I recently bought an 81 Twinstar to go to and from work. I am currently have the issue where if I hit the throttle somewhat hard, it will immediately bog out. If I just accelerate gradually it is fine. After I...
  7. Air/Fuel Mixture Screw Adjustments

    Vintage Forum
    I have an 1981 Suzuki GS550T and i've modified it alot i have put on k&n air filters and a MAC 4-to-1 exaust and iv rejet it. But here is the issue in doing so im not sure where my air/fuel mixture screws go anymore i drilled the plugs out and replaced the screws and well now im stuck i just...
  8. More issues with the gs550 Please Help

    Vintage Forum
    Alright im fairly new at working on bikes but im also mechanicly inclined. I have an 81 Suzuki GS550T. I removed the carbs and airbox cleaned the carbs and ditched the box it was beat-up pretty bad. Put it all back together, replacing my 95.5 main jets with 100's to com. for the new filters...
  9. Getting my first bike up and running

    New Member Introductions
    Hi Everyone, I just picked up a nice little 1976 CB360T from my uncle. I am now in the process of bringing it back to running [reliably] condition. I posted a couple of the issues I'm having on a thread discussing my similar problems for a 1975 CB360 thread. Anyways, I'm here to learn and...
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