TourMax Regulator Rectifier Yamaha 42X-81960-A1 42X-81960-A0
- Replaces Shindengen SH569A-12
- 69mm between bolt hole centres
- 4 wires
- 2 block connectors
- Made in Japan
Replacement aftermarket part for Yamaha OEM 42X-81960-A1, 42X-81960-A0
Regulator/Rectifier Fitting Instructions
When on test, 12 Volt batteries should show an output of 13.2 Volts. When the engine is running this would increase to between 14 and 15 Volts.
Yamaha and certain Honda motorcycle's use a three-phase type system, with a permanent magnet instead of an electromagnet, to regulate the current from the alternator.
Rather than controlling the output from the alternator, the excess voltage would be dumped by means of heat transfer.
To improve the transfer of heat from the regulator/rectifier you can use a silicone heat sink compound which is placed on the back of the regulator/rectifier and on the mounting point. Both surfaces must be clean for better contact and heat transference.
Also, to improve the earth of the regulator/rectifier, a cable can be introduced on one of the mounting bolts and connected directly to the negative terminal of the battery (earth side). This would eliminate the unreliable arrangement of earth fittings that are connected to various parts of the frame or motorcycle that does not always work. This type of earth is used as standard on some Yamaha and Honda motorcycles.
Before You Place Your Order...
- Note the image may not be exactly as item received and any slight difference will not be inferior or effect performance
- Check the fitment list to ensure this item will fit your vehicle
- When we refer to right or left, this is as you sit on your vehicle
- To find part by SKU, enter the number without "SKU" into the search box
- Products containing any fluid or hazardous materials, aerosols, batteries including large lithium jump starters cannot be shipped overseas due to courier restrictions although we can ship UK offshore and Scottish Highlands at higher shipping rates
- EU customers should check with your countries customs office to determine what additional costs such as tax or Import duties will be prior to purchasing. These charges are normally collected by the delivery company or when you pick the item up, they are not included in the item price or shipping charge on this website
All parts and accessories are brand new and include VAT where applicable.
Most parts are pattern or aftermarket although some will be genuine but are not always stated as being so.
The use of motorcycle manufacturers' names is for reference purposes only. We do not imply that the products we sell are made by or with the permission of the names listed.
Compatible Yamaha Motorcycles
- Yamaha VMX1200 (V-Max) 1985
- Yamaha VMX1200 (V-Max) 1986
- Yamaha VMX1200 (V-Max) 1987
- Yamaha VMX1200 (V-Max) 1988
- Yamaha VMX1200 (V-Max) 1989
- Yamaha VMX1200 (V-Max) 1990
- Yamaha VMX1200 (V-Max) 1991
- Yamaha VMX1200 (V-Max) 1992
- Yamaha VMX1200 (V-Max) 1993
- Yamaha VMX1200 (V-Max) 1994
- Yamaha VMX1200 (V-Max) 1995
- Yamaha VMX1200 (V-Max) 1996
- Yamaha VMX1200 (V-Max) 1997
- Yamaha XV1000 SE Virago 1988
- Yamaha XV1000 Virago 1984
- Yamaha XV1000 Virago 1985
- Yamaha XV1000 Virago (Shaft Drive) 1986
- Yamaha XV1000 Virago (Shaft Drive) 1987
- Yamaha XV1000 Virago (Shaft Drive) 1988
- Yamaha XV1000 Virago (Shaft Drive) 1989
- Yamaha XV1100 Virago 1986
- Yamaha XV1100 Virago 1987
- Yamaha XV1100 Virago 1988
- Yamaha XV1100 Virago 1994
- Yamaha XV1100 Virago 1995
- Yamaha XV1100 Virago 1996
- Yamaha XV535 S Virago 1994
- Yamaha XV535 Virago 1987
- Yamaha XV535 Virago 1988
- Yamaha XV535 Virago 1989
- Yamaha XV535 Virago 1990
- Yamaha XV535 Virago 1991
- Yamaha XV535 Virago 1992
- Yamaha XV535 Virago 1993
- Yamaha XV535 Virago 1994
- Yamaha XV535 Virago 1995
- Yamaha XV535 Virago 1996
- Yamaha XV700 CS/CSC Virago 1986
- Yamaha XV700 CT/CTC Virago 1987
- Yamaha XV700 L/LC Virago 1984
- Yamaha XV700 N/NC Virago 1985
- Yamaha XV700 SS/SSC Virago 1986
- Yamaha XV750 Virago 1988
- Yamaha XV750 Virago 1989
- Yamaha XV750 Virago 1990
- Yamaha XV750 Virago 1991
- Yamaha XV750 Virago 1994
- Yamaha XV750 Virago 1995
- Yamaha XV750 Virago 1996
Type 1
- Yamaha XV1100 S Virago Special 1994 (Type 1)
- Yamaha XV1100 S Virago Special 1995 (Type 1)
- Yamaha XV1100 S Virago Special 1996 (Type 1)
- Yamaha XV1100 S Virago Special 1997 (Type 1)
- Yamaha XV1100 S Virago Special 1998 (Type 1)
- Yamaha XV1100 S Virago Special 1999 (Type 1)
- Yamaha XV1100 Virago 1989 (Type 1)
- Yamaha XV1100 Virago 1990 (Type 1)
- Yamaha XV1100 Virago 1991 (Type 1)
- Yamaha XV1100 Virago 1992 (Type 1)
- Yamaha XV1100 Virago 1993 (Type 1)
- Yamaha XV535 S Virago 1995 (Type 1)
- Yamaha XV535 S Virago 1996 (Type 1)
- Yamaha XV535 S Virago 1997 (Type 1)
- Yamaha XV750 Virago 1992 (Type 1)
- Yamaha XV750 Virago 1993 (Type 1)
Type 2
- Yamaha XTZ750 Super Tenere 1989 (Type 2)
- Yamaha XTZ750 Super Tenere 1990 (Type 2)
- Yamaha XTZ750 Super Tenere 1991 (Type 2)
- Yamaha XTZ750 Super Tenere 1992 (Type 2)
- Yamaha XTZ750 Super Tenere 1993 (Type 2)
- Yamaha XTZ750 Super Tenere 1994 (Type 2)
- Yamaha XTZ750 Super Tenere 1995 (Type 2)
- Yamaha XTZ750 Super Tenere 1996 (Type 2)
- Yamaha XTZ750 Super Tenere 1997 (Type 2)
- Yamaha XTZ750 Super Tenere 1998 (Type 2)
