Power Jet Circuit Inserts | Compatible with H-SERIES & Legacy Lectron Carburetors 2000-2025-sherco-125-se-esr4260247 the V4R26 is a proven

the V4R26 is a proven performance mod for riders running stock or Lectron carburetors

clean midrange

or riding style

Replacement airboot for 1979 Yamaha YZ400

designed specifically for 2-stroke single-cylinder engines from 65cc to 500cc

Power Jet Circuit Inserts | Compatible with H-SERIES & Legacy Lectron Carburetors 2000-2025-sherco-125-se-esr4260247 the V4R26 is a provenFine tune your top end performance with Power Jet Circuit Insertsdesigned to control high RPM fueling on Lectron H SERIES and Legacy carburetors. These inserts allow riders to adjust the amount of fuel delivered at wide open throttle, giving you more control over throttle response and peak power without affecting low or midrange performance. Ideal for elevation changes, temperature swings, or custom builds that demand precise fuel delivery at the top