Sorry this may be a case of a little to late, however I have just had the exact same problem with a 1972 SL 125. The fix was a complete carb overhaul, replaced and started on third kick.
You can post your question, answer or comment as a guest. Or
enter your e-mail to join the forum and get notifcations of new messages.
More 1972 Honda SL 125 information
Our discussion forums are intended for short messages. We also welcome more extensive motorcycle reviews.
Bikez also recommends that you check out the technical
data and the riders' rating for the 72 Honda SL 125.
You can also rate it yourself. Use our efficient motorcycle
classifieds to sell or
buy
this bike. Your motorbike gets a high quality presentation. Ads are free.