For performance, the 2005 Honda CR125R had a 125cc two-stroke single-cylinder liquid-cooled engine mounted under the fuel tank. It was managed by a 38 mm Mikuni TMX carburetor and assisted by a.. 2005 125cc Two-stroke Motocross Dirt Bikes - Test Ride & Review - Dirt Rider.. Honda CR125 vs. Yamaha YZ125 2005 250cc Four-stroke Motocross Shootout. More Dirt Rider. Latest.
2005 Honda CR125R Specifications Release; September 8, 2004 — Torrance, Calif. Model: CR125R: Engine Type: 125cc liquid-cooled single-cylinder two-stroke with RC valve: Bore and Stroke: 54mm x 54.5mm: Compression Ratio: 8.6:1: Induction: Six-petal crankcase reed-valve:. Honda gave the CR125R motor 99 percent of the R&D; attention for 2005, as it truly needed it. Although the engine looks quite similar, the biggest visual cue to the update is the absence of the.