RE: [Honda-C70] Dead Speedometer

Yes the new /used speedometer could be broken if the larger motor & extra high gearing of over size tires allows a higher top speed than the speedometer " pegs out " at. You have already seen what happens when your speedometer kept hammering at the peg so it might not break right away but it could eventually. Baby Huey

To: Honda-C70@yahoogroups.com
From: jonathan.yoon@mavs.uta.edu
Date: Fri, 3 Jun 2011 03:50:53 +0000
Subject: [Honda-C70] Dead Speedometer

So my speedo is kaput, it did a whole lot of whining before going, now the needle just jiggles around in place or side-to-side or is stuck anywhere on the dial, and is either totally silent or whining like a dropped newborn. I've given up on it and ordered a used one on ebay

Now my question is, since I'm replacing my engine with a 140cc Lifan clone, would the excess speed break the new speedo? I think someone on this group told me that my speedo had corrosion in it which was why it would whine and rap up to 55mph whenever I started riding from zero.

Also, I have Michelin Gazelles on my bike, 2.5 front and 2.75 rear. Would the larger tires have any effect on the speedometer reading?

I think it would make it read as going slower than reality, but I figure I'd ask to make sure.

Thanks!

[Non-text portions of this message have been removed]

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C70 Passport Not Running Right?
1970-73 C70 Honda Service Manual: http://tinyurl.com/6ebwtw
1970-73 C70 Troubleshooting Guide:
http://tinyurl.com/6ebwtw (scroll to sec.7.1 page 101.jpg)
1980-83 C70 Honda Service Manual: http://tinyurl.com/hu42c
1980-81 C70 Troubleshooting Guide:
http://tinyurl.com/hu42c (scroll to sec.18-1 page 170.jpg)
1982-83 C70 Troubleshooting Guide:
http://tinyurl.com/hu42c (scroll to sec. 20-28 page 205.jpg)

1980-81 C70 Maintenance Schedule: http://tinyurl.com/z4zn6
1982-83 C70 Maintenance Schedule: http://tinyurl.com/hw35c

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