Description
ProX Mikuni Main Jets for Yamaha Blaster
ProX Mikuni main jets provide replacement sizing options for the Yamaha Blaster YFS200’s stock Mikuni VM26 carburetor. Use them when tuning for engine modifications or replacing an existing jet.
Available sizes
230, 240, 250, 260, 270, 280, 290, 300, 310, 320, 330, 340, 350, 360, 370, 380 and 390.
Each purchase includes one main jet in the selected size.
What does the main jet do?
The main jet has its greatest influence on fuel delivery at larger throttle openings. Correct sizing is important when tuning for changes to the exhaust, airbox, filter or engine.
Within the same jet series, a larger-numbered main jet supplies more fuel for a richer mixture. A smaller-numbered jet supplies less fuel for a leaner mixture.
Fitment and selection
These are ProX replacement jets for the stock Yamaha Blaster Mikuni VM26 carburetor. Confirm the installed carburetor before ordering, especially if your Blaster has an aftermarket replacement or carburetor conversion.
Match the jet style and dimensions to the carburetor’s requirements. Jet numbers from different manufacturers or series should not be treated as equivalent.
Tuning your Blaster
Select a starting size suited to your engine configuration, fuel and riding conditions. Make one adjustment at a time and confirm final jetting through testing.
Shop more Yamaha Blaster parts at The Blaster Store.
Questions about compatibility or sizing? Contact KOR or call (860) 230-5003.
