BOYESEN Rad Valve Intake Boot for KAWASAKI, SUZUKI, KTM, YAMAHA and HUSQVARNA 1988-2021

The BOYESEN BOYRB-5 Rad Valve intake boot is designed for KAWASAKI KX 80, KX 85, KX 100, KTM SX 65, SX 85, SUZUKI RM 85, RM 100, YAMAHA YZ 85 and HUSQVARNA TC 85 from 1988 to 2021. This intake boot connects the carburettor to the Boyesen Rad Valve reed valve block on a two-stroke engine. It has to seal perfectly: an air leak at this point leans out the mixture and makes the engine run hot.

Specifications

• Brand: BOYESEN
• Manufacturer part number: BOYRB-5
• EAN code: 804429503827
• Weight: 300 g
• Engine: 2-stroke

When to replace it?

• Boot hardened, cracked or distorted.
• Unstable idle or hanging revs: possible air leak.
• Carburettor moving in the boot even with the clamp tight.

Check the boot every time you remove the carburettor or the reed valve block. Check the model and model years: it must match your Rad Valve reed block.

Fitting tips

1. Remove the carburettor, then the boot to be replaced.
2. Clean the mating surfaces and fit the new boot with a new reed block gasket.
3. Tighten the bolts in a criss-cross pattern to the specified torque, then push the carburettor fully into the boot and tighten its clamp.
4. Start the engine and check that it holds a steady idle.

Why BOYESEN?

Boyesen is an American brand specialising in the intake and the engine covers of two-stroke engines: reed petals, RAD Valve reed blocks, engine covers and Supercooler water pumps.

Spare parts and items to plan

• Reed block gasket : V FORCE · BOYESEN
• Reed petals : BOYESEN · TECNIUM

Frequently asked questions

Will this boot fit without a Rad Valve block?
It's designed for a Boyesen Rad Valve reed block: check compatibility with your bike.

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
HUSQVARNA TC 85 2017
HUSQVARNA TC 85 2016
HUSQVARNA TC 85 2015
HUSQVARNA TC 85 2014
KAWASAKI KX 80 1990
KAWASAKI KX 80 1989
KAWASAKI KX 80 1988
KAWASAKI KX 85 2021
KAWASAKI KX 85 2020
KAWASAKI KX 85 2019
KAWASAKI KX 85 2018
KAWASAKI KX 85 2017
KAWASAKI KX 85 2016
KAWASAKI KX 85 2015
KAWASAKI KX 85 2014
KAWASAKI KX 85 2013
KAWASAKI KX 85 2012
KAWASAKI KX 85 2011
KAWASAKI KX 85 2010
KAWASAKI KX 85 2009
KAWASAKI KX 85 2008
KAWASAKI KX 85 2007
KAWASAKI KX 85 2006
KAWASAKI KX 85 2005
KAWASAKI KX 85 2004
KAWASAKI KX 85 2003
KAWASAKI KX 85 2002
KAWASAKI KX 85 2001
KAWASAKI KX 100 2021
KAWASAKI KX 100 2020
KAWASAKI KX 100 2019
KAWASAKI KX 100 2018
KAWASAKI KX 100 2017
KAWASAKI KX 100 2016
KAWASAKI KX 100 2015
KAWASAKI KX 100 2014
KAWASAKI KX 100 2013
KAWASAKI KX 100 2012
KAWASAKI KX 100 2011
KAWASAKI KX 100 2010
KAWASAKI KX 100 2009
KAWASAKI KX 100 2008
KAWASAKI KX 100 2007
KAWASAKI KX 100 2006
KAWASAKI KX 100 2005
KAWASAKI KX 100 2004
KAWASAKI KX 100 2003
KAWASAKI KX 100 2002
KAWASAKI KX 100 2001
KTM SX 65 2008
KTM SX 65 2007
KTM SX 65 2006
KTM SX 65 2005
KTM SX 65 2004
KTM SX 65 2003
KTM SX 65 2002
KTM SX 65 2001
KTM SX 65 2000
KTM SX 65 1999
KTM SX 65 1998
KTM SX 85 2017
KTM SX 85 2016
KTM SX 85 2015
KTM SX 85 2014
KTM SX 85 2013
KTM SX 85 2012
KTM SX 85 2011
KTM SX 85 2010
KTM SX 85 2009
SUZUKI RM 85 2021
SUZUKI RM 85 2020
SUZUKI RM 85 2019
SUZUKI RM 85 2018
SUZUKI RM 85 2017
SUZUKI RM 85 2016
SUZUKI RM 85 2015
SUZUKI RM 85 2014
SUZUKI RM 85 2013
SUZUKI RM 85 2012
SUZUKI RM 85 2011
SUZUKI RM 85 2010
SUZUKI RM 85 2009
SUZUKI RM 85 2008
SUZUKI RM 85 2007
SUZUKI RM 85 2006
SUZUKI RM 85 2005
SUZUKI RM 85 2004
SUZUKI RM 85 2003
SUZUKI RM 85 2002
SUZUKI RM 100 2005
SUZUKI RM 100 2004
SUZUKI RM 100 2003
YAMAHA YZ 85 2021
YAMAHA YZ 85 2020
YAMAHA YZ 85 2019
YAMAHA YZ 85 2018
YAMAHA YZ 85 2017
YAMAHA YZ 85 2016
YAMAHA YZ 85 2015
YAMAHA YZ 85 2014
YAMAHA YZ 85 2013
YAMAHA YZ 85 2012
YAMAHA YZ 85 2011
YAMAHA YZ 85 2010
YAMAHA YZ 85 2009
YAMAHA YZ 85 2008
YAMAHA YZ 85 2007
YAMAHA YZ 85 2006
YAMAHA YZ 85 2005
YAMAHA YZ 85 2004
YAMAHA YZ 85 2003
YAMAHA YZ 85 2002