Author Topic: Keihin 627B identifying unknown part  (Read 583 times)

Offline AndyH

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Keihin 627B identifying unknown part
« on: October 07, 2017, 10:45:41 AM »
I've removed the carbs from my 500K1 in preparation for a full refurb.

Before I de-rack them, can someone in the know please tell me the purpose of the highlighted part in the attached pic.
They appear to be very brittle on my set of carbs, and one of them is completely broken in half!
A check on the CMSNL parts list doesn't identify it individually.
TIA

Andy
Andy

1971 CB750K1
1972 CB500 Four K1 (SOLD)
1978 Suzuki GS750E
Previously....
1967 Honda Sports 90
1971 Yamaha CT2 175
1973 Yamaha RD250
1975 Kawasaki KX125
1979 Yamaha XT250T
BMW R65
BMW R80
BMW R100LT

Offline mickwinf

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Re: Keihin 627B identifying unknown part
« Reply #1 on: October 07, 2017, 01:20:49 PM »
I think they are just dust seals to keep the crap out of the mechanism.
Love the 500 and 550 have a 500 called Lazarus under restoration

Offline deltarider

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Re: Keihin 627B identifying unknown part
« Reply #2 on: October 07, 2017, 01:40:34 PM »
Quote
Before I de-rack them
You shouldn't IMO. The parts that seem 'broken in half' are not by any chance the two black graphite looking cuplike parts around the bullet joint?

Offline AndyH

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Re: Keihin 627B identifying unknown part
« Reply #3 on: October 08, 2017, 08:40:46 AM »
I think they are just dust seals to keep the crap out of the mechanism.

I think you're right Mick!  When new, they were probably soft and pliable rubber.  45 years on, they're now hard and brittle and crumbling into oblivion!
Andy

1971 CB750K1
1972 CB500 Four K1 (SOLD)
1978 Suzuki GS750E
Previously....
1967 Honda Sports 90
1971 Yamaha CT2 175
1973 Yamaha RD250
1975 Kawasaki KX125
1979 Yamaha XT250T
BMW R65
BMW R80
BMW R100LT

 

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