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New (to me!) '77 CB400F - US model
mattsz:
--- Quote from: Laverda Dave on April 14, 2020, 12:44:18 PM ---Looking at your re-adjusted carbs with the chokes open is about right. As Taysidedragon mentions, they are normally open 95% of the time so that is where you want the adjustment to count. As an aside, when I start my bike on full choke I have to open the choke a fair amount once the engine has started otherwise it races up to 3000RPM.
--- End quote ---
The spec for that fast idle setting appears to be 3500 - 4500 rpm... seems quite high to me, but Honda must know what they're up to...
mattsz:
There's a thin layer of brown residue covering most everything that touched fuel in the carb bowl. Simply soaking the brass bits in lacquer thinner doesn't do much; I can scrub it off with a cab-cleaner-spray soaked rag. But the stuff doesn't scrub off the plastic floats; I can, however, scratch at it with my fingernail!
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I didn't soak the floats, which I think might help - can I safely soak them in the lacquer thinner or carb cleaner, without fear of melting them?
taysidedragon:
I only used carb cleaner and wd40 on mine. I was afraid to use anything stronger in case of damage.
mattsz:
--- Quote from: taysidedragon on April 15, 2020, 11:22:19 AM ---I only used carb cleaner and wd40 on mine. I was afraid to use anything stronger in case of damage.
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Thanks...
mattsz:
More minor progress... I went to change the front tire, and found a few rusty spots inside the rim. I thought I'd scrub off the rust and maybe spot prime them?
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