Can I run this bike on unleaded gas?
Early CT-90s were engineered to run on leaded gas, which sometimes leads people to believe that they'll be damaged by using unleaded gas. This is almost never the case. An important thing to remember is that Honda engineered these bikes to be sold and used all over the planet, not just in the developed world. Thus, they engineered the bike to use pretty much any fuel you might encounter, even old 60-octane crap that's been sitting in a barrel in a station outside Accra or on the island of Borneo. The difference between 87 unleaded and old leaded gas isn't a big relative to some of the nasty fuel the bike could probably use.

CT-110s were engineered for unleaded gas, and you should not use leaded gas in it (though I defy you to actually find any for sale in most places). The critical thing with any CT is to make sure the valves are adjusted, the timing is correct and you're using the correct spark plug and the correct plug gap.

Last updated: 05/19/2002