Upgrade the intake performance of your Yamaha PW80 with Boyesen 673 dual-stage motorcycle reeds. Designed as a direct-fit replacement and performance enhancement, these reeds are engineered to improve throttle response, airflow, and overall engine operation across a wide range of riding conditions. The Boyesen brand is recognized for reed technology that supports responsive power delivery and dependable service life.
These dual-stage reeds use a minor component change to produce noticeable horsepower improvements. Their design allows faster opening and closing, helping the engine respond more quickly to throttle input while improving low-pressure, low-throttle operation. Increased velocity and flow area support more efficient intake performance, making the Boyesen 673 a practical upgrade for riders seeking stronger response from a stock or lightly modified Yamaha PW80 engine.
Feature: Dual-stage reed design for improved intake control
Feature: Faster opening and closing for sharper throttle response
Feature: Enhanced low-pressure response during low-throttle operation
Feature: Increased velocity and flow area for improved airflow
Feature: Longer overall service life
Feature: Reed construction designed to prevent engine damage if a reed breaks
The Boyesen 673 fits 1991 through 2000 Yamaha PW80 models. This product is manufactured by Boyesen and is identified by manufacturer part number 673 and vendor part number 59-7673. Verify the motorcycle year and model before installation, and follow the applicable service-manual procedures for removing and installing the reed assembly.
Features:
- Dual-stage reed design for improved intake control
- Minor upgrade that can provide noticeable horsepower improvements
- Faster opening and closing for quicker throttle response
- Improved low-pressure, low-throttle performance
- Greater intake velocity and flow area
- Longer overall service life
- Designed to help prevent engine damage if a reed breaks
- Fits 1991-2000 Yamaha PW80 models
Fitment:
1983 Yamaha PW 80
1984 Yamaha PW 80
1985 Yamaha PW 80
1986 Yamaha PW 80
1987 Yamaha PW 80
1988 Yamaha PW 80
1989 Yamaha PW 80
1990 Yamaha PW 80
1991 Yamaha PW 80
1992 Yamaha PW 80
1993 Yamaha PW 80
1994 Yamaha PW 80
1995 Yamaha PW 80
1996 Yamaha PW 80
1997 Yamaha PW 80
1998 Yamaha PW 80
1999 Yamaha PW 80
2000 Yamaha PW 80
2001 Yamaha PW 80
2002 Yamaha PW 80
2003 Yamaha PW 80
2004 Yamaha PW 80
2005 Yamaha PW 80
2006 Yamaha PW 80