Be warned: The internet is filled with scanned, grainy, watermarked PDFs from 2004. Here is where to find a download.
In the world of vintage and utilitarian motorcycles, the supply chain for original parts is shrinking. Honda has shifted focus to newer fuel-injected models (like the TMX 125 Alpha). Consequently, finding genuine parts for the 155cc carbureted engine has become a treasure hunt.
Google Drive Archive : Contains a consolidated "Parts Assembly, Service, and Owner's Manual". manual honda tmx 155 parts catalogue pdf hot
Look at the chart on the same page. Match your reference number to find the official Honda part number and the part description. Tips for Downloading the PDF Safely
Just having the file on your phone isn't enough. Do this: Be warned: The internet is filled with scanned,
You can find comprehensive parts lists and assembly diagrams at the following sources:
The TMX 155 is notorious for overheating if ridden hard with a sidecar. The catalogue shows the breakdown of the cylinder head, cam chain tensioner, and valve guides. Honda has shifted focus to newer fuel-injected models
According to the Honda TMX 155 Engine Manual , these are the vital stats to keep in mind for maintenance: Specification 4-stroke, single-cylinder, OHV (Air-cooled) Displacement Oil Capacity ~0.85 liters Spark Plug Gap 0.7–0.8 mm Valve Clearance Intake: 0.06–0.08 mm / Exhaust: 0.08–0.10 mm Idle Speed 1,400–1,600 rpm Parts Catalogue Structure