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  1. Cafe Customs

    Dohc cb750 cylinder 4

    It did cleaning up carb again about to put it on
  2. Cafe Customs

    Dohc cb750 cylinder 4

    Finally got her to idle a bit then found that cylinder 4 isn't firing sprayed water on header and it's dead all others are good I changed cdis but caused 3 to go also changed back and 4 stays off could it be the carb not sending correct air I have spark going to the plug and they are new have...
  3. Cafe Customs

    79 cb750 Dohc issue idling

    We fixed the first issue which was the pods instead of tape we made restricted plates inside the filter to regulate the air to the bikes liking now we are trying to figure out is the amount of turns we need to put on the air ratio screws to set it better
  4. Cafe Customs

    79 cb750 Dohc issue idling

    I understand we are new to the engine also I'm a gsxr guy but my uncle has a few projects and I'm getting into it to learn more on them
  5. Cafe Customs

    79 cb750 Dohc issue idling

    So this is a custom bike my uncles been building and that's has been the only issue left
  6. Cafe Customs

    79 cb750 Dohc issue idling

    So we barely cupped our hands over the carbs and she revs and idles great so what can I do to keep her like that
  7. Cafe Customs

    79 cb750 Dohc issue idling

    Have tried both on and off
  8. Cafe Customs

    79 cb750 Dohc issue idling

    My uncle has a few cb750 cafe racers and we have been working on getting her at a steady idle and to rev appropriately it's running on choke and only for a limited time he has changed multiple carbs have tried different afr have good spark going to the plugs changed the cdis multiple times and...
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