Blue smoke from the exhaust on a Vespa GTS 300 2026
Is your Vespa GTS 300 2026 showing "Blue smoke from the exhaust"? Here's the most likely cause, the checks to run, and the parts that fit your bike.
Technical bulletin
Vespa GTS 300 2026 — owner breakdown
The Vespa GTS 300 2026 is small-displacement 278cc four-stroke machine, catalogued from 2009 to 2026. Checks below are ordered for this bike.
- Engine
- 278 cm³ · four-stroke
- Category
- small-displacement
- Production years
- 2009–2026
- Newest model year
- 2026
Catalog data and community feedback — indicative markers, not a workshop manual.
⚠️ This tool helps you understand what's going on with your motorcycle; it doesn't replace the inspection or judgment of a certified mechanic. If in persistent doubt, if a safety-critical part is involved (braking, steering, bearings, transmission), or if the problem keeps recurring, have the diagnosis confirmed at a workshop before doing any work.