Mc 91 production year
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Mc 91 production year
wondering what year the Mac 91 came out and what year mine was produced . Looks to be all original, is that the original carb looks kind of big.. how many cc's were these. Around how many horsepower are they? And how many RPMs can I expect after it's been rebuilt?
Re: Mc 91 production year
Mark,
First series of 91's came out around 1966. Can't see the carb in your photo but they did have one big single from the factory.
R.E.A.R.
First series of 91's came out around 1966. Can't see the carb in your photo but they did have one big single from the factory.
R.E.A.R.
Re: Mc 91 production year
Beware! Iif it's the early straight bore without a venturi they are not very desirable & lean out a lot on high end.
Not sure but I was told they didn't pull well off the bottom either. They were quickly replaced.
Not sure but I was told they didn't pull well off the bottom either. They were quickly replaced.