FCR-39-Mod

1 год назад

This video explains how to fix a common problem with four-stroke carburetors: a lean bog. The video focuses on the accelerator pump and how to adjust its timing and fuel flow. It also discusses how to diagnose and fix a lean bog by adjusting the fuel screw and pilot jet.

6 лет назад

This video shows how to jet a Keihin FCR carburetor on a Yamaha WR450f using a JD Jetting kit. The video covers installing the new needle, main jet, and pilot jet, as well as adding an O-ring to the accelerator pump for improved throttle response. The video ends with the bike running and the creator expressing their initial satisfaction with the results.

2 года назад

This video addresses a common issue with motorcycle carburetors: a lean condition even with a rich pilot jet. The video focuses on the vacuum plate seal and how its orientation can significantly impact engine performance. The presenter highlights a specific detail to look for when inspecting the seal, offering a visual guide to ensure proper installation.