Yamaha lb80 happy oil leak

Discussion in 'Japanese Mini's' started by Bryan r, Feb 27, 2017.

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  1. Feb 27, 2017 #1

    Bryan r

    Bryan r

    Bryan r

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    I've got a 75 Chappy that runs great but after it sits injection oil leaks out of the vent pipe at the bottom of the carb. Any ideas??
     
  2. Feb 27, 2017 #2

    motorman

    motorman

    motorman

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    Must be something wrong with the carb. Might be a good idea to give it a service.

    You could also empty the oil tank and just premix the fuel yourself.
     
  3. Feb 28, 2017 #3

    Bryan r

    Bryan r

    Bryan r

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    Thanks for the response. But why would oil leak from the float bowl vent on the bottom of the carb and not fuel??
     
  4. Feb 28, 2017 #4

    motorman

    motorman

    motorman

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    Not 100% sure as not massively familiar with that style of carb.

    All I do know is not many people let the carb do the mixing. If you got a blockage then your motor get's no oil.

    Better off pre mixing so you never have that issue.
     

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