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1965 Honda CP77 — Ulsan Metro City, Rep. Korea
Restored with original parts — Owner: J. Doe

CB77 Speedometer Cable

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Loudo
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Location: Seattle, Washington

CB77 Speedometer Cable

Post by Loudo » Thu Feb 25, 2010 5:50 pm

On my '63 CB77, the speedometer cable screws into a geared device at the front wheel hub (labeled simply as "BOX" in the parts diagram). The box has a screw on it, and if you remove the screw one can see the worm drive mechanism or what have you that eventually turns the speedo cable. Does anyone know the purpose of this screw? Is it simply a cap for a hole one would use for inserting lubricant into the box similar to the purpose of zerk grease fittings elsewhere on the bike?
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davomoto
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Joined: Sat Nov 18, 2006 7:36 pm
Location: Marin County CA

Post by davomoto » Thu Feb 25, 2010 6:21 pm

Loudo, I've completely disassembled and regreased sveral of the speedo boxes, and have come to the same conclusion that you did. But.... since Honda put zerk fittings on other ares of the bike, why not have one on speedo box?


davomoto
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LOUD MOUSE
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Joined: Mon Aug 15, 2005 8:23 am
Location: KERRVILLE, TEXAS

Re: CB77 Speedometer Cable

Post by LOUD MOUSE » Thu Feb 25, 2010 8:32 pm

It is used as a grease opening. .......lm
Loudo wrote:On my '63 CB77, the speedometer cable screws into a geared device at the front wheel hub (labeled simply as "BOX" in the parts diagram). The box has a screw on it, and if you remove the screw one can see the worm drive mechanism or what have you that eventually turns the speedo cable. Does anyone know the purpose of this screw? Is it simply a cap for a hole one would use for inserting lubricant into the box similar to the purpose of zerk grease fittings elsewhere on the bike?
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