2-Stroke vs 4-Stroke & Major Outboard Brands · Japan · all prices

No maker publishes sales figures. These lists are built from best-seller and most-reviewed proxies (retailer rankings, review volume, awards) over the last five years — the source is shown under each entry.

1. Yamaha V MAX SHO 250 Japan Spec — ¥3,200,000
   The definitive tournament outboard of Lake Biwa; engineered and serviced locally in Japan.
2. Suzuki DF250A V6 Lean Burn — ¥2,950,000
   4.0L V6 with maintenance-free self-adjusting timing chain; ultra-reliable in Japanese waters.
3. Honda BF250D VTEC Marine — ¥3,150,000
   Automotive VTEC delivers powerful high-rpm punch while maintaining cleanest emissions.
4. Tohatsu MFS140A Simpliq — ¥1,850,000
   4-into-2-into-1 exhaust manifold provides incredible acceleration out of the hole in Japan.
5. Mercury 250 Pro XS V8 Japan — ¥3,450,000
   Imported high-displacement V8 favored by Japanese speed-oriented tournament pros.
6. Yamaha F115B FourStroke — ¥1,750,000
   DOHC 16-valve 1.8-liter block; the benchmark engine for Japanese charter and bass boats.
7. Suzuki DF115BG Drive-by-Wire — ¥1,680,000
   Fly-by-wire precision control eliminates cable friction; silky shifting into gear.
8. Tohatsu MFS60A Light Weight — ¥920,000
   Class-leading lightweight 98.5 kg 60 HP outboard; perfect for small aluminum bass rigs.
9. Honda BF90D VTEC — ¥1,450,000
   Lean Burn feedback control with BLAST low-speed torque boosting technology.
10. Yamaha F25G Portable EFI — ¥480,000
    Battery-less electronic fuel injection; effortless manual or electric starting on rental boats.