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utah cb750

Old 06-26-2010, 06:27 PM
  #1  
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Default utah cb750

i'm on here to learn a bit more about my newly purchased 76 honda cb750k

hi all.

this is my issue:

really clean, about 19k miles on it. about a week later 1st and 2nd gear started sputtering and struggling when i kicked in. kind of like when you upshift too soon from like, 1st right to 3rd and it struggles to keep going...but 1st and second are doing it every time.

also, it is idling funny(not consistent and steady)


its not the spark plugs.
pretty sure its not a carb issue.
not a timing issue.


i was told it could be the spark plug cables are rotted and stiff. or the coils?
also told it might just need a valve adjustment.

had some funny electrical issues here and there as well, but not sure if its related.


anyone dealt with these kind of issues before???

much appreciated!

exultant801 is offline  
Old 06-24-2011, 05:08 AM
  #2  
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Location: grand forks,b.c.
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howdy!i have a 1980 cb750custom(dohc).Yes it could be your plug wires arcing against engine or rectifier/stator,or perhaps the cam chain tensioner!or gummed up carbs.Sounds like you have extremely low milaege though,hhmmm?
boreman is offline  
Old 07-15-2011, 12:55 PM
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Don't underestimate the value of a clean needle valve! This sounds like a carb issue to me, as well as ignition wires.
This is a 31 year old bike with only 19K miles, If it was me, I'd change every filter, flush the tank and change all of your spark plugs and wires.
Should be a fun bike to ride after that.
Skeleton Crew is offline  
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