Honda CHF50S Metropolitan 2002-2009 Service Manual

Honda's own official press archive confirms exactly what the "S" suffix represents in this bike's model coding — a genuine parallel trim line running the identical mechanical platform under a distinct model number for a separate set of colorways. Honda's own 2007 model-year press materials list "Metropolitan CHF507" in Sapphire and Ruby alongside a separate "CHF50S7" designation, and the 2006 lineup similarly splits "CHF50 Denim / Salsa" from "CHF50S6" — Honda using the trailing letter, in genuine keeping with its long-standing naming convention, purely to distinguish which color-and-graphics package a given unit shipped with, rather than any meaningful mechanical difference from the standard CHF50.

ManualsLib's own indexed document library confirms Honda documented the S trim directly alongside the standard model in its official owner's literature every year it existed: "Scooter Honda CHF50 2007 Metropolitan Owner's Manual (225 pages), Scooter Honda CHF50S 2007 Metropolitan Owner's Manual (225 pages)... Scooter Honda CHF50 2008 Owner's Manual (223 pages), Scooter Honda CHF50S 2008 Owner's Manual (223 pages)" — genuinely identical page counts year over year, real confirmation that Honda's own factory documentation treated the S variant as a cosmetic sibling sharing the same content rather than a distinct mechanical model requiring its own separate procedures. A dedicated 2006-2009 factory parts manual, catalogued under Honda's own part number 14GET601, likewise covers "Honda CHF50/S Metropolitan" together as one unified reference.

Power comes from the same 49cc liquid-cooled OHC single-cylinder four-stroke engine shared with the standard CHF50, a 38mm bore and stroke, and a 12:1 compression ratio, fed by a CV carburetor (15mm on earlier model years, growing to 18mm on later ones) with automatic choke and CDI ignition, delivering drive through Honda's fully automatic V-Matic belt-drive transmission — genuinely the identical GET2-derived short-case engine architecture Motor Scooter Guide's own account confirms this platform shares with the Honda Ruckus. Cyclepedia's own confirmed manual scope explicitly notes this shared-documentation approach extends internationally too: "the manual is based on a US market Honda CHF50 Metropolitan, but it may also be helpful for servicing the following models: Honda CHF50 Jazz, Honda CHF50 Scoopy, and Honda CHF50 Crea Scoopy."

ManualsLib's own excerpted troubleshooting content confirms the genuinely common real-world faults a technician working on either the standard or S-trim CHF50 will encounter: "engine won't start or hard to start: Issues with fuel flow (clogged filter/hose, faulty pump), ignition (faulty spark plug/coil/switch/pulse generator), or cylinder compression (stuck valve, worn rings/cylinder). Engine stalls, hard to start, rough idling: Restricted fuel line, incorrect fuel mixture, contaminated fuel, intake air leak, misadjusted idle speed/pilot screw, clogged fuel tank breather, dirty air cleaner, clogged slow circuit, faulty starting enrichment (SE) valve, or ignition malfunction" — genuinely thorough diagnostic guidance covering the entire fuel and ignition system regardless of which colorway badge the specific scooter wears. Braking used drum brakes at both wheels with a front combined braking system, riding on 90/90-10 tires, with a 1.3-US-gallon fuel tank and a curb weight around 176-178 lbs — identical dimensions and hardware to the standard CHF50 across this entire production span.

This factory service manual covers the procedures, torque specs, and diagrams needed to keep a 2002-2009 CHF50S Metropolitan running the way it was built to.