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Author Topic: CB750 K1 valve wear at end with pics  (Read 1021 times)

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Offline Ace

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CB750 K1 valve wear at end with pics
« on: January 12, 2011, 04:42:32 AM »
Upon stripping down the K1, I noticed that the end of the valve where the tappet adjuster strikes has pits in it.  Are the valves still good or should they be replaced?  Thanks.
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1971 CB750 K1 - Sold
1978 CB750 F2 Supersport - Sold
1981 CB900 Bol d'or - Sold
2006 CBR1100 XX Super Blackbird - Sold

Offline KRONUS0100

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Re: CB750 K1 valve wear at end with pics
« Reply #1 on: January 12, 2011, 05:55:23 AM »
id say the top picture looks like it was run forever with excessive clearance.  looks like the rocker arm adjuster screww been slamming down on it a little much.  the bottom valve looks ok.
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MATT
current bikes:  1976 CB750F, 1981 GS1100E
bikes owned:1981 GL1100I, 1990 GS500E, 1981 GS850, 1977 and 1979 GS750, 1974 CB750, 1975 CB750, and a 1982 GS750E
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