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This is a discussion on cb360 carbs within the Technical forums, part of the Caferacer.net Forums category; Johnny, Doing all the stuff the guys are reccommending DOES seem really involved and hard to do, and the books sometimes are not a lot ...

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Thread: cb360 carbs

  1. #21
    Senior Member JackC's Avatar
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    Johnny,

    Doing all the stuff the guys are reccommending DOES seem really involved and hard to do, and the books sometimes are not a lot of help either if you don't have the basic knowledge.

    If you learn by watching vs. reading, try to find someone that knows what to do SHOW you once. You will see how easy it is then you can do it in the future. An ad in craigslist may get several calls.

    I love old bikes, but my mechanical ability is limited to clicking the pen to write the check for the repairs, but I am slowly learning some of the simple tuning jobs. It is a great feeling of accomplishment to have done the job yourself, and to have done it correctly!

    Jack

  2. #22
    Senior Member Johnny Gaijin's Avatar
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    ok so yeah i cleaned out idle passages, i just didn't know that's what they were called (although i figured that's what you meant). yeah i'm enjoying learning how to work on my bike and intend to learn how to do more, timing and valves being the next step.

    so i started putting the kit in the carb and ran into a couple problems...

    numero one-o:
    the float valve seat doesn't seat...
    this is the old one:


    and this is the new one getting hung up on the gasket:


    numero two-o:
    where does this guy (i'm not sure what's a jet and what's a jet holder or whatever else) go?:


    i'm assuming it goes under the main jet (or is the main jet and goes under the holder? still not sure what's called what) here:

    but i don't know how to get the old one out as there's no screw head on it.
    or am i completely retarded and missing something obvious?

    thanks for all the help so far...

  3. #23
    Senior Member craig641's Avatar
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    Are those pictures of the before shot - before you cleaned your carburators? Or are those pictures of junk carbs used just to illustrate what you're talking about? Because those things aren't clean.

    Craig

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  5. #24
    SJW
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    Senior Member SJW's Avatar
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    The first picture. Put a TINY amount of oil on the O-ring prior to seating it. Then push hard with with your thumb. If it doesn't seat with your thumb get something round about the same outside diameter of the part and force it in. O-ring clearances are typically .002" - .003" on both sides of a circle. Placin the 0-ring on causes an interference fit.
    Canada, we\'re bigger and on top. If this were jail you\'d be our bitch.

  6. #25
    Senior Member Saml01's Avatar
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    I would first try to fit it without the O-ring and make sure it seats, then try with an O-ring.

    I would also compare the threads of the old float valve to the new.

    1974 Honda CB360

  7. #26
    Senior Member Johnny Gaijin's Avatar
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    fits w/o the o-ring, oil allows the seat to be pushed in but the o-ring just pushes it back up. grrr.

  8. #27
    Senior Member Johnny Gaijin's Avatar
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    three taps of a hammer later and problem solved.
    although the real problem, idling on one cylinder, still exists. timing and tappet adjust up next.

  9. #28
    Senior Member kerosene's Avatar
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    "Are those pictures of the before shot - before you cleaned your carburators? Or are those pictures of junk carbs used just to illustrate what you're talking about? Because those things aren't clean."

    I have to agree with above statement posted by Craig


    h

    -

  10. #29
    Senior Member Johnny Gaijin's Avatar
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    i hosed 'em down with carb cleaner and wiped up with a cloth. i made sure to blow carb cleaner down the idle passages... is that surface grime gonna be an issue?

  11. #30
    Senior Member craig641's Avatar
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    Just a suggestion. As bad as those carbs look on the parts that you can see, the small passages that you can't see (idle passages) are going to look at least as bad. Probably worse. If you've got surface grime I guarantee you've got the same grime inside the passages that you can't see. It won't take much to clog up or restrict an idle passage.

    You mention that it won't idle on one side. Does it run on both sides when you give it more throttle?

    Craig

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