Haven't had one apart, but from the only online IPL I can find, there is an internal dog clutch, operated by a separate cable and lever to the gearshift. It acts on the main bevel gear. The gear setup is conventional constant-mesh, as in a motorcycle gearbox.
Honda Indonesia IPL 5.7MB PDF is HERE Around page 44.
Cheers, Gadge
"ODK Mods can explain it to you, but they can't understand it for you..."
"Crazy can be medicated, ignorance can be educated - but there is no cure for stupid..."
