Mark asked "would this thing mounted on your top-box help
ebay item number 320765188391
http://www.ebay.co.uk/itm/2-4W-Solar-Power-Panel-Module-Charger-6-Volt-Battery-6V-/320765188391?pt=UK_Gadgets&hash=item4aaf185927 "
Short answer: It cannot hurt, but one unit will not produce standard charging power.
Long answer: The normal charge rate for a lead-acid battery is C/10 which means Capacity (in Amp hours) divided by 10. A C70 with electric start has an 11 Amp hour battery, so its normal charge rate would be 1.1 Amps.
This solar cell at best claims to output 0.27 Amps so you would need four connected in parallel to provide 1.08 charge Amps.
While a single cell would certainly not deliver a full charge rate, it would trickle charge the battery, and the charge would improve.
Jon Pardue
Sarasota, Florida
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
