Re: Fixing/servicing a DOHC speedometer
Posted by seestheday on May 16, 2012; 5:22pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Fixing-servicing-a-DOHC-speedometer-tp3891671p3997524.html
After doing this, my speedometer has been rock steady - almost no jumping. My tach still jumps a lot though and the steady speedo makes it appear even more erratic in comparison.
I don't think it fixed the accuracy, nor did I expect it to. Its a gear, a cleaning shouldn't impact accuracy much.
It was a surprisingly simple job to do.
The part that took the longest was cleaning the gearbox, but that is just because I wanted it to look decent.
I am a little afraid to disassemble my front tire... I am afraid of what the grease will look like, as it is likely the original, from the factory, circa 1979. 
My speedo is a little crazy, and 9 MPH over, at 55 MPH (actual speed is 46...). I took the cable apart, cleaned it of all oil/grease, and then I applied wheel bearing grease along its length, before sliding it back into the outer cable housing. It improved the performance (reduced the jumping around), but not the accuracy. I may need to go this route. Heaven knows what 33-year-old grease (with 22,000 miles on it) will look like. Thanks for sharing. Cheers!
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Fixing-servicing-a-DOHC-speedometer-tp3891671p3997524.html
After doing this, my speedometer has been rock steady - almost no jumping. My tach still jumps a lot though and the steady speedo makes it appear even more erratic in comparison.
I don't think it fixed the accuracy, nor did I expect it to. Its a gear, a cleaning shouldn't impact accuracy much.
It was a surprisingly simple job to do.
The part that took the longest was cleaning the gearbox, but that is just because I wanted it to look decent.
Sent from my BlackBerry device on the Rogers Wireless Network
From: "sgtslag [via Honda CB750'S]" <[hidden email]>
Date: Wed, 16 May 2012 10:15:16 -0700 (PDT)
To: seestheday<[hidden email]>
Subject: Re: Fixing/servicing a DOHC speedometer
My speedo is a little crazy, and 9 MPH over, at 55 MPH (actual speed is 46...). I took the cable apart, cleaned it of all oil/grease, and then I applied wheel bearing grease along its length, before sliding it back into the outer cable housing. It improved the performance (reduced the jumping around), but not the accuracy. I may need to go this route. Heaven knows what 33-year-old grease (with 22,000 miles on it) will look like. Thanks for sharing. Cheers!
1979 CB750K
1993 Kawasaki Voyager XII
1993 Kawasaki Voyager XII
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1981 CB750K with 900 cams
90K KM's, rebuilt head, rebuilt carbs, upgraded valve stem seals
My wife's recipe website that I'm trying to help promote: Strawberries for supper. Yes, I am a lucky man.
90K KM's, rebuilt head, rebuilt carbs, upgraded valve stem seals
My wife's recipe website that I'm trying to help promote: Strawberries for supper. Yes, I am a lucky man.
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