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Air inlets on head

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renoman
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Joined: Sat Jan 29, 2011 10:05 pm

Air inlets on head

Post by renoman » Sat Jan 29, 2011 10:12 pm

I have a 1967 CL77, I removed the carbs to clean and located two air inlets under the intake manifolds for the carbs. On the british bikes these were balance tubes and they were connected by a rubber hose. What are the purpose of these on the 305 and shoud they be connected or are they some kind of breather? Thanks

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G-Man
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Post by G-Man » Sun Jan 30, 2011 3:27 am

Hi Renoman

These were breathers connected to the inlet valve guides. later models do not have them as it was considered unnecessary. You can blank them or connect them together without dire consequences.

G
'60 C77 '60 C72 '62 C72 Dream '63 CL72
'61 CB72 '64 CB77 '65 CB160
'66 Matchless 350 '67 CL77
'67 S90 '77 CB400F

renoman
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Posts: 36
Joined: Sat Jan 29, 2011 10:05 pm

Thanks

Post by renoman » Sun Jan 30, 2011 5:52 pm

Thanks Gman

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