Honda Monkey 125 2022-2024 Service Manual

Motorcycle News' own review doesn't oversell the significance of this generation's engine swap: "now, with Euro5 regulations forcing it to clean up its act, Honda have upgraded their mini bike with a new motor taken from their Grom and some new shocks — and that's about it... the switch of engine has done very little to alter its character or performance." That same review is genuinely fond of the result regardless: "Honda have really nailed the Monkey (aside from the dash...) and it remains a charming and fun bike that while fairly impractical makes you, and everyone around you, smile when you ride it."

Power comes from a 124cc air-cooled SOHC single-cylinder engine, 2 valves, genuinely borrowed from the Grom platform, delivering a claimed 9.25 hp (6.9kW) at essentially unchanged output from the prior generation — MCN's own review confirms "the same claimed power and torque figures as before with only a very small 250rpm change in where they are delivered." The genuine mechanical news is a new fifth gear, run through a proper 5-speed transmission — Honda's own confirmed European press materials note this replaces the earlier bike's 4-speed unit, "which basically gives you an overdrive which drops the revs yet does very little to the speed."

Motoplanete's own confirmed technical account details the genuine engineering rationale behind the longer-stroke engine configuration: "his engine block shows 'longer stroke' ratings than before. This generally translates into better torque. It won't be obvious, given the small difference in power, but the effort will help validate the Euro5 switchover." MCN's own review confirms real, if modest, weight savings alongside the engine swap: 104kg curb weight, three kilos lighter than the outgoing generation, with a claimed top speed of 57mph (65mph indicated on downhill runs, "not that you can read it on speedo").

Honda's own confirmed 23YM press release lists standard equipment carried through this entire 2022-2024 span unchanged: IMU-controlled ABS braking, USD forks, 12-inch wheels, full LED lighting, and an LCD dash — confirming "nothing changes mechanically for 2023" beyond three new colorways referencing the classic late-1960s Monkey styling. Standard tire sizing runs 120/80-12 front and 130/80-12 rear on a 775mm seat height.

This factory service manual covers the procedures, torque specs, and diagrams needed to keep a 2022-2024 Monkey 125 running the way it was built to.