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Author Topic: Speedo cable bolt  (Read 600 times)

Landlubber

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Speedo cable bolt
« on: July 11, 2009, 03:44:37 AM »
I have read elsewhere that the bolt for the speedo cable, the one that hold the battery neg, is in fact a hollow bolt and allows the transmission to vent.

Can anyone enlighten me further on this please. I have two R65LS bikes, neither of them have hollow bolts.......
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Offline montmil

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Re: Speedo cable bolt
« Reply #1 on: July 11, 2009, 06:27:33 AM »
'lubber,

Check the bolt head and the other end very closely. The hole for the vent is somewhere in the range of 1/64 inch. The gun barrel-drilled hole extends the length of the bolt and provides an atmospheric vent for the gearbox.

Mine was plain ol' dirty and I didn't even notice it until someone on this site directed me. If yours has gone missing, your area stealership would be the source.

Monte
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Monte Miller
Denton, TEXAS
1978 BMW R100S
1981 BMW R65
1983 BMW R65
1995 Triumph Trophy
1986 VW Cabriolet

Offline Justin B.

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Re: Speedo cable bolt
« Reply #2 on: July 11, 2009, 10:20:42 AM »
It is a very small hole, here is a pic of a stainless replacement I sell a few of.  The stocker is a regular hex bolt head.

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Justin B.

2004 BMW R1150RT
1981 R100RT - Summer bike, NEKKID!!!
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