Josh: The petcock should have a small vaccume line and a larger fuel line. My shop manual shows the CA vaccume line routing diagram with the canister /PCV connecting to the ports between each carb and the engine. On my NON- CA 700S the vacume line goes to the number two carb port and the other three are pluged with screws. The fuel line goes directly to the fuel rail "T" between number 2 and 3 carb. If the petcock does not have vacume from the engine it will not deliver fuel to the carbs.
I hope that helps.. On Jan 15, 7:01 am, Graham Rogers <[email protected]> wrote: > I can't imagine why the fuel would not go directly from the petcock > to the carbs. It's emissions from the valve cover to the air box > they did something different with I think. I have a PVC canister > under the tank, above the carbs on my '86 700. It's between the valve > cover vent and the air box but it doesn't have anything to do with > the fuel supply. Graham > > On Jan 15, 2010, at 3:26 AM, Josh Dencklau wrote: > > > > > I'm in the process of bringing an '84 cb700 back to life and have a > > question. My nighthawk is a California model and the repair manual > > I have must be for the same CA model. I just cleaned the fuel > > petcock and am trying to get the thing to fire up. The fuel on > > this goes to a valve then to a canister underneath the bike then > > back up to the carbs. To simplify things, I'm wondering if I can > > just rout the fuel from the petcock directly into the carbs and > > eliminate the canister and the PCV? I'm guessing that the 49 state > > version doesn't have all of the extra stuff in there. Any help > > would be greatly appreciated. Thanks. > > > Josh > > > Hotmail: Free, trusted and rich email service. Get it now. -- > > You received this message because you are subscribed to the Google > > Groups "Nighthawk Motorcycle Lovers!" group. > > To post to this group, send email to > > [email protected]. > > To unsubscribe from this group, send email to nighthawk_lovers > > [email protected]. > > For more options, visit this group athttp://groups.google.com/ > > group/nighthawk_lovers?hl=en.- Hide quoted text - > > - Show quoted text -
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