Ignition Diagnosis for CB/CM 400/450 and CB450SC manual trans 1978-1986 - Page 8
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Thread: Ignition Diagnosis for CB/CM 400/450 and CB450SC manual trans 1978-1986

  1. #71
    Super Moderator longdistancerider's Avatar
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    Use a 75/115 or 118 combo
    Jim O'Brien
    1979 CM400T "road bike" modified for travelling
    1978 CB400T1 restored
    1972 CL350 survivor restoration


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  2. #72
    Junior Member thunderskah's Avatar
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    I’ve done the checklist, is there a pic of the pickup coil can’t find the wires. Also, if something is out of tolerance does it require a new part? Details are in my project log
    1980 CM400T
    https://r.tapatalk.com/shareLink?sha...0&share_type=t


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  3. #73
    Supporting Member crazypj's Avatar
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    Pickup coil is little 'black box' under generator cover. The low speed trigger was a failure point and prevented bike starting. It would run above 4K but if stopped wouldn't re-start. If any resistance measurement is within +/-20% of published spec it's good. You would need exact same meter as was used in 1978 to get within 5%
    thunderskah likes this.
    There are three types of people in the world, those who can count and those who can't
    I'm not a complete idiot, but, I'm working on it

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  5. #74
    Super Moderator longdistancerider's Avatar
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    Added pictures to your Project Log
    Jim O'Brien
    1979 CM400T "road bike" modified for travelling
    1978 CB400T1 restored
    1972 CL350 survivor restoration


    https://www.hondatwins.net/forums/22...d-attempt.html and https://www.hondatwins.net/forums/1-...r-attempt.html
    Road Trip https://www.hondatwins.net/forums/11...here-i-go.html or "where's Jim now?"
    Member Map https://www.hondatwins.net/forums/dcMembermap.php

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