First, no reason to run hightest in these little bikes, second , go back to a stock plug. if you are using the choke for other than starting it, you have a fuel delivery problem. could be an air leak. Set the bike up the way it was originally, then tell us how it runs.
Michael
--- On Wed, 6/6/12, havocagp <havocagp@yahoo.com> wrote:
From: havocagp <havocagp@yahoo.com>
Subject: [Honda-C70] Running Hot?
To: Honda-C70@yahoogroups.com
Date: Wednesday, June 6, 2012, 6:49 AM
I have had my C70 running for a few months now. It starts up just fine. Timing & oil level is were it should be, 1982 CDI. But I notice with my new (cheap) carb it needs alot of choke. (larger jet size). But It also seems to be running real hot. After I ride my C70 for about 10mins. I can not touch the lower part of the engine, Its just to hot. Should it be this hot? other then I'm choking it more then ever before and longer, It runs strong at 50mph with no problems. Just wondering if it should be this hot. I run high grade fuel in it. Should I go to lower grade? I'm running 1 grade hotter plug. Is that the problem? Or is there a problem? Should it run this hot?
Havoc
[Non-text portions of this message have been removed]
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
More resources for C70 Passports and Cubs:
http://www.shlaes.com/Vehicles/Scooter.htm
http://www.velodrome.com/HondaC70/HondaC70.html
