Kawasaki Piston

Motorcycle master cylinder Rebuild hard to do?

I have a 1984 Kawasaki ZN 1300 Voyager.The brake handle is loose enough to activate the rear brake light.Could this be caused by the front master cylinder needing to be rebuilt? How hard is this to do?

Hey John, haven't heard from you in a while. Ha! If you're talking about the front brakes, there's a piston stop that limits the distance the piston can move backwards, There could possibaly be crud between the piston and the stop keeping it from returning all the way or the spring that pushes the piston back could be broken. There's a plastic collar with two tabs that has to be depressed and removed, then the piston stop, piston and spring will come out.

If the rear master cylinder, there's a snap ring that holds the piston in place. Without looking, I can't remember if the rear brake light is operated by a mechanical linkage and spring or not. If so, simply adjusting that may cure the problem.

That's not so on the front because the switch is in a fixed position. If the brakes work fine otherwise, you might be able to take a small piece of metal and make a spacer and use silicone sealer to fasten it to the part of the lever that pushes onto the piston. That way it will reduce the amount of free play. I had to do that to make a different model spare brake lever work on my 1000.

If you need to tear into things, email me and I'll send you a copy of the parts diagram.

new johndeere piston ring fits kawasaki 440 68mm
new johndeere piston ring fits kawasaki 440 68mm
$14.95
Time Remaining: 3h 56m
Buy It Now for only: $14.95

Wiseco Piston Kit Kawasaki Drifter 440 78 80 STD
Wiseco Piston Kit Kawasaki Drifter 440 78 80 STD
$73.10
Time Remaining: 9h 26m
Buy It Now for only: $73.10

Wiseco Piston Kit Kawasaki Intruder 440 78 80 STD
Wiseco Piston Kit Kawasaki Intruder 440 78 80 STD
$73.10
Time Remaining: 9h 26m
Buy It Now for only: $73.10

Wiseco Piston Kit Kawasaki Invader 440 78 80 STD
Wiseco Piston Kit Kawasaki Invader 440 78 80 STD
$73.10
Time Remaining: 9h 27m
Buy It Now for only: $73.10

Wiseco Piston Kit Kawasaki Drifter 440 78 80 1
Wiseco Piston Kit Kawasaki Drifter 440 78 80 1
$86.88
Time Remaining: 9h 28m
Buy It Now for only: $86.88

Wiseco Piston Kit Kawasaki Intruder 440 78 80 1
Wiseco Piston Kit Kawasaki Intruder 440 78 80 1
$86.88
Time Remaining: 9h 28m
Buy It Now for only: $86.88

Wiseco Piston Kit Kawasaki Drifter 440 78 80 15
Wiseco Piston Kit Kawasaki Drifter 440 78 80 15
$83.32
Time Remaining: 9h 28m
Buy It Now for only: $83.32

Wiseco Piston Kit Kawasaki Intruder 440 78 80 15
Wiseco Piston Kit Kawasaki Intruder 440 78 80 15
$83.32
Time Remaining: 9h 29m
Buy It Now for only: $83.32

Wiseco Piston Kit Kawasaki Drifter 440 81 82 STD
Wiseco Piston Kit Kawasaki Drifter 440 81 82 STD
$76.21
Time Remaining: 9h 49m
Buy It Now for only: $76.21

Wiseco Piston Kit Kawasaki Invader 440 81 82 STD
Wiseco Piston Kit Kawasaki Invader 440 81 82 STD
$76.21
Time Remaining: 9h 49m
Buy It Now for only: $76.21

ARCTIC CAT 440 KAWASAKI PISTON CHROME RINGS SET OF 2 RINGS T1 SERIES 1971 1975
ARCTIC CAT 440 KAWASAKI PISTON CHROME RINGS SET OF 2 RINGS T1 SERIES 1971 1975
$35.00
Time Remaining: 1d 6h 12m
Buy It Now for only: $35.00

Arctic Cat Kawasaki Lynx EXT 290 292 Twin KT440 3 Triple Piston Ring Set 555mm
Arctic Cat Kawasaki Lynx EXT 290 292 Twin KT440 3 Triple Piston Ring Set 555mm
$24.60
Time Remaining: 1d 8h 10m
Buy It Now for only: $24.60

LeMans Kawasaki Snowmoble Piston 8072
LeMans Kawasaki Snowmoble Piston 8072
$25.00
Time Remaining: 1d 8h 57m
Buy It Now for only: $25.00

Wiseco Piston Kit 6800 mm Kawasaki Intruder 440 1978 1980
Wiseco Piston Kit 6800 mm Kawasaki Intruder 440 1978 1980
$73.10
Time Remaining: 2d 7h 43m
Buy It Now for only: $73.10

Wiseco Piston Kit 6800 mm Kawasaki Drifter 440 1978 1980
Wiseco Piston Kit 6800 mm Kawasaki Drifter 440 1978 1980
$73.10
Time Remaining: 2d 7h 43m
Buy It Now for only: $73.10

Wiseco Piston Kit 6950 mm Kawasaki Intruder 440 1978 1980
Wiseco Piston Kit 6950 mm Kawasaki Intruder 440 1978 1980
$94.72
Time Remaining: 2d 8h 22m
Buy It Now for only: $94.72

Wiseco Piston Kit 6950 mm Kawasaki Drifter 440 1978 1980
Wiseco Piston Kit 6950 mm Kawasaki Drifter 440 1978 1980
$94.72
Time Remaining: 2d 8h 22m
Buy It Now for only: $94.72

Wiseco Piston Kit 6950 mm Kawasaki Invader 440 1978 1980
Wiseco Piston Kit 6950 mm Kawasaki Invader 440 1978 1980
$94.72
Time Remaining: 2d 8h 23m
Buy It Now for only: $94.72

ARCTIC CAT KAWASAKI 440CC PISTON RINGS AFTERMARKET STILL IN PACKAGE NOS ITEM
ARCTIC CAT KAWASAKI 440CC PISTON RINGS AFTERMARKET STILL IN PACKAGE NOS ITEM
$38.50
Time Remaining: 2d 9h 37m
Buy It Now for only: $38.50

ARCTIC CAT KAWASAKI 340 PISTON RINGS WITH TOP L RING NEW OLD STOCK IN THE BOX
ARCTIC CAT KAWASAKI 340 PISTON RINGS WITH TOP L RING NEW OLD STOCK IN THE BOX
$30.00
Time Remaining: 2d 10h
Buy It Now for only: $30.00

Wiseco Piston Kit 6800 mm Kawasaki Intruder 440 1981
Wiseco Piston Kit 6800 mm Kawasaki Intruder 440 1981
$76.21
Time Remaining: 2d 11h 22m
Buy It Now for only: $76.21

Wiseco Piston Kit 6800 mm Kawasaki Drifter 440 1981 1982
Wiseco Piston Kit 6800 mm Kawasaki Drifter 440 1981 1982
$76.21
Time Remaining: 2d 11h 22m
Buy It Now for only: $76.21

Wiseco Piston Kit 6800 mm Kawasaki Invader 440 1981 1982
Wiseco Piston Kit 6800 mm Kawasaki Invader 440 1981 1982
$76.21
Time Remaining: 2d 11h 23m
Buy It Now for only: $76.21

KAWASAKI 399CC TWIN CYL STANDARD BORE POWERDOME PISTON WITH RING NEW OLD STOCK
KAWASAKI 399CC TWIN CYL STANDARD BORE POWERDOME PISTON WITH RING NEW OLD STOCK
$85.00
Time Remaining: 2d 11h 59m
Buy It Now for only: $85.00

Kawasaki Astro Inviter 340 Piston rings NOS 13008 507
Kawasaki Astro Inviter 340 Piston rings NOS 13008 507
$23.99
Time Remaining: 3d 7h 50m
Buy It Now for only: $23.99

NOS OEM Kawasaki Piston Rings 13008 1066 STD
NOS OEM Kawasaki Piston Rings 13008 1066 STD
$34.95
Time Remaining: 4d 13h 36m

Wiseco 6250mm Piston 377 Engine Kawasaki Mirage SkiDoo More Models 1979 2006
Wiseco 6250mm Piston 377 Engine Kawasaki Mirage SkiDoo More Models 1979 2006
$72.23
Time Remaining: 5d 2h 31m
Buy It Now for only: $72.23

KAWASAKI 75 80 436cc 020 PISTON ASSEMBLY KIMPEX NEW
KAWASAKI 75 80 436cc 020 PISTON ASSEMBLY KIMPEX NEW
$34.99
Time Remaining: 5d 6h 56m
Buy It Now for only: $34.99

Kawasaki Invader 440 1978 1979 1980 Wiseco Std Pistons Pair 2084M06800
Kawasaki Invader 440 1978 1979 1980 Wiseco Std Pistons Pair 2084M06800
$159.99
Time Remaining: 5d 10h 10m
Buy It Now for only: $159.99

Kawasaki Drifter 440 1978 1979 1980 Wiseco Std Pistons Pair 2084M06800
Kawasaki Drifter 440 1978 1979 1980 Wiseco Std Pistons Pair 2084M06800
$159.99
Time Remaining: 5d 10h 10m
Buy It Now for only: $159.99

Kawasaki Intruder 440 1978 1979 1980 Wiseco Std Pistons Pair 2084M06800
Kawasaki Intruder 440 1978 1979 1980 Wiseco Std Pistons Pair 2084M06800
$159.99
Time Remaining: 5d 10h 10m
Buy It Now for only: $159.99

NOS Kawasaki 340A Piston 60mm Kawasaki 13001 3004 John Deere M68072 US SHIP
NOS Kawasaki 340A Piston 60mm Kawasaki 13001 3004 John Deere M68072 US SHIP
$49.95
Time Remaining: 6d 2h 42m
Buy It Now for only: $49.95

1987 2005 Kawasaki KLR250 7545 CC Namura Piston Kit 7550mm
1987 2005 Kawasaki KLR250 7545 CC Namura Piston Kit 7550mm
$81.52
Time Remaining: 6d 2h 46m
Buy It Now for only: $81.52

95 09  11 13 Kawasaki KX100 5246 CC Namura Piston Kit 6260mm
95 09 11 13 Kawasaki KX100 5246 CC Namura Piston Kit 6260mm
$57.94
Time Remaining: 6d 2h 47m
Buy It Now for only: $57.94

1992 2003 Kawasaki KX250 6785 CC Namura Piston Kit 6790mm
1992 2003 Kawasaki KX250 6785 CC Namura Piston Kit 6790mm
$59.60
Time Remaining: 6d 2h 47m
Buy It Now for only: $59.60

2005 2008 Kawasaki KX250 6635 CC Namura Piston Kit 664mm
2005 2008 Kawasaki KX250 6635 CC Namura Piston Kit 664mm
$60.26
Time Remaining: 6d 2h 47m
Buy It Now for only: $60.26

2000 2013 Kawasaki KX65 4496 CC Namura Piston Kit 4496mm
2000 2013 Kawasaki KX65 4496 CC Namura Piston Kit 4496mm
$39.94
Time Remaining: 6d 2h 47m
Buy It Now for only: $39.94

1988 1990 Kawasaki KX80 4796 CC Namura Piston Kit 4796mm
1988 1990 Kawasaki KX80 4796 CC Namura Piston Kit 4796mm
$50.47
Time Remaining: 6d 2h 47m
Buy It Now for only: $50.47

2000 2013 Kawasaki KX65 4546 CC Namura Piston Kit 4546mm
2000 2013 Kawasaki KX65 4546 CC Namura Piston Kit 4546mm
$41.94
Time Remaining: 6d 2h 47m
Buy It Now for only: $41.94

2000 2013 Kawasaki KX65 4595 CC Namura Piston Kit 4595mm
2000 2013 Kawasaki KX65 4595 CC Namura Piston Kit 4595mm
$39.94
Time Remaining: 6d 2h 47m
Buy It Now for only: $39.94

2005 2008 Kawasaki KX250 6636 CC Namura Piston Kit
2005 2008 Kawasaki KX250 6636 CC Namura Piston Kit
$62.94
Time Remaining: 6d 2h 47m
Buy It Now for only: $62.94

1988 1990 Kawasaki KX80 4797 CC Namura Piston Kit 4797mm
1988 1990 Kawasaki KX80 4797 CC Namura Piston Kit 4797mm
$50.47
Time Remaining: 6d 2h 47m
Buy It Now for only: $50.47

95 09  11 13 Kawasaki KX100 5244 CC Namura Piston Kit 525mm
95 09 11 13 Kawasaki KX100 5244 CC Namura Piston Kit 525mm
$56.89
Time Remaining: 6d 2h 47m
Buy It Now for only: $56.89

1998 2000 Kawasaki KX 125 5395 CC Piston Kit
1998 2000 Kawasaki KX 125 5395 CC Piston Kit
$53.61
Time Remaining: 6d 2h 47m
Buy It Now for only: $53.61

1992 2003 Kawasaki KX250 6636 CC Namura Piston Kit
1992 2003 Kawasaki KX250 6636 CC Namura Piston Kit
$59.14
Time Remaining: 6d 2h 47m
Buy It Now for only: $59.14

1992 2003 Kawasaki KX250 6735 CC Namura Piston Kit 6740mm
1992 2003 Kawasaki KX250 6735 CC Namura Piston Kit 6740mm
$58.68
Time Remaining: 6d 2h 47m
Buy It Now for only: $58.68

2005 2008 Kawasaki KX250 6637 CC Namura Piston Ring Set 664mm
2005 2008 Kawasaki KX250 6637 CC Namura Piston Ring Set 664mm
$13.33
Time Remaining: 6d 2h 47m
Buy It Now for only: $13.33

1992 2003 Kawasaki KX250 6637 CC Namura Piston Kit
1992 2003 Kawasaki KX250 6637 CC Namura Piston Kit
$59.94
Time Remaining: 6d 2h 47m
Buy It Now for only: $59.94

1998 2000 Kawasaki KX 125 5394 CC Namura Piston Kit Kawasaki Std
1998 2000 Kawasaki KX 125 5394 CC Namura Piston Kit Kawasaki Std
$48.64
Time Remaining: 6d 2h 48m
Buy It Now for only: $48.64

1987 2005 Kawasaki KLR250 7495 CC Namura Piston Kit 040
1987 2005 Kawasaki KLR250 7495 CC Namura Piston Kit 040
$74.98
Time Remaining: 6d 2h 48m
Buy It Now for only: $74.98

1983 2003 Kawasaki KX60 4295 CC Namura Piston Kit Kawasaki Std
1983 2003 Kawasaki KX60 4295 CC Namura Piston Kit Kawasaki Std
$39.94
Time Remaining: 6d 2h 48m
Buy It Now for only: $39.94

2000 2013 Kawasaki KX65 4447 CC Namura Piston Kit c Series
2000 2013 Kawasaki KX65 4447 CC Namura Piston Kit c Series
$41.94
Time Remaining: 6d 2h 48m
Buy It Now for only: $41.94

1987 2005 Kawasaki KLR250 7395 CC Namura Piston Kit Std
1987 2005 Kawasaki KLR250 7395 CC Namura Piston Kit Std
$73.55
Time Remaining: 6d 2h 49m
Buy It Now for only: $73.55

2006 2009 Kawasaki KX250F 7695 CC Namura Piston Kit Std
2006 2009 Kawasaki KX250F 7695 CC Namura Piston Kit Std
$106.16
Time Remaining: 6d 2h 49m
Buy It Now for only: $106.16

2003 2006 Kawasaki KLX 400 8996 CC Namura Piston Kit Std
2003 2006 Kawasaki KLX 400 8996 CC Namura Piston Kit Std
$84.94
Time Remaining: 6d 2h 49m
Buy It Now for only: $84.94

1988 1990 Kawasaki KX80 4845 CC Namura Piston Kit Kawasaki 020
1988 1990 Kawasaki KX80 4845 CC Namura Piston Kit Kawasaki 020
$50.71
Time Remaining: 6d 2h 49m
Buy It Now for only: $50.71

2004 2005 Kawasaki KX250F 7695 CC Namura Piston Kit Std
2004 2005 Kawasaki KX250F 7695 CC Namura Piston Kit Std
$103.93
Time Remaining: 6d 2h 49m
Buy It Now for only: $103.93

1987 2005 Kawasaki KLR250 7445 CC Namura Piston Rings 020
1987 2005 Kawasaki KLR250 7445 CC Namura Piston Rings 020
$21.76
Time Remaining: 6d 2h 49m
Buy It Now for only: $21.76

1992 2003 Kawasaki KX250 6635 CC Namura Piston Kit Kawasaki Std
1992 2003 Kawasaki KX250 6635 CC Namura Piston Kit Kawasaki Std
$58.68
Time Remaining: 6d 2h 49m
Buy It Now for only: $58.68

2006 2009 Kawasaki KX250F 7697 CC Namura Piston Kit c Series
2006 2009 Kawasaki KX250F 7697 CC Namura Piston Kit c Series
$118.83
Time Remaining: 6d 2h 49m
Buy It Now for only: $118.83

1988 1990 Kawasaki KX80 4895 CC Namura Piston Kit 100mm
1988 1990 Kawasaki KX80 4895 CC Namura Piston Kit 100mm
$50.96
Time Remaining: 6d 2h 49m
Buy It Now for only: $50.96

2004 2005 Kawasaki KX250F 7696 CC Namura Piston Kit b Series
2004 2005 Kawasaki KX250F 7696 CC Namura Piston Kit b Series
$117.94
Time Remaining: 6d 2h 49m
Buy It Now for only: $117.94

1987 2005 Kawasaki KLR250 7495 CC Namura Piston Rings 040
1987 2005 Kawasaki KLR250 7495 CC Namura Piston Rings 040
$20.42
Time Remaining: 6d 2h 49m
Buy It Now for only: $20.42

1988 1990 Kawasaki KX80 4795 CC Namura Piston Kit Kawasaki Std
1988 1990 Kawasaki KX80 4795 CC Namura Piston Kit Kawasaki Std
$50.96
Time Remaining: 6d 2h 49m
Buy It Now for only: $50.96

1987 2005 Kawasaki KLR250 7395 CC Namura Piston Rings Std
1987 2005 Kawasaki KLR250 7395 CC Namura Piston Rings Std
$18.95
Time Remaining: 6d 2h 49m
Buy It Now for only: $18.95

2001 2002 Kawasaki KX125 5394 CC Namura Piston Kit Kawasaki Std
2001 2002 Kawasaki KX125 5394 CC Namura Piston Kit Kawasaki Std
$57.33
Time Remaining: 6d 2h 49m
Buy It Now for only: $57.33

1998 2000 Kawasaki KX 125 5396 CC Piston Kit
1998 2000 Kawasaki KX 125 5396 CC Piston Kit
$53.61
Time Remaining: 6d 2h 49m
Buy It Now for only: $53.61

1986 2003 Kawasaki KMX 125 Piston Kit
1986 2003 Kawasaki KMX 125 Piston Kit
$30.92
Time Remaining: 6d 2h 49m
Buy It Now for only: $30.92

2001 2002 Kawasaki KX125 5395 CC Piston Kit
2001 2002 Kawasaki KX125 5395 CC Piston Kit
$55.67
Time Remaining: 6d 2h 49m
Buy It Now for only: $55.67

2001 2013 Kawasaki KX85 4845 CC Namura Piston Kit Kawasaki Std
2001 2013 Kawasaki KX85 4845 CC Namura Piston Kit Kawasaki Std
$51.94
Time Remaining: 6d 2h 49m
Buy It Now for only: $51.94

2001 2002 Kawasaki KX125 5396 CC Piston Kit
2001 2002 Kawasaki KX125 5396 CC Piston Kit
$55.67
Time Remaining: 6d 2h 49m
Buy It Now for only: $55.67

2001 2013 Kawasaki KX85 4847 CC Namura Piston Kit c Series
2001 2013 Kawasaki KX85 4847 CC Namura Piston Kit c Series
$51.94
Time Remaining: 6d 2h 49m
Buy It Now for only: $51.94

2003 2006 Kawasaki KFX 400 8996 CC Namura Piston Kit Std
2003 2006 Kawasaki KFX 400 8996 CC Namura Piston Kit Std
$84.94
Time Remaining: 6d 2h 59m
Buy It Now for only: $84.94

2003 2006 Kawasaki KFX 400 9046 CC Namura Piston Kit 020
2003 2006 Kawasaki KFX 400 9046 CC Namura Piston Kit 020
$84.94
Time Remaining: 6d 2h 59m
Buy It Now for only: $84.94

2003 2011 Kawasaki KLF250 BAYOU 6897 CC Namura Std Piston Kit
2003 2011 Kawasaki KLF250 BAYOU 6897 CC Namura Std Piston Kit
$48.79
Time Remaining: 6d 3h
Buy It Now for only: $48.79

1999 2003 Kawasaki KVF300 PRAIRIE 7745 CC Namura Piston Ring Set7750mm
1999 2003 Kawasaki KVF300 PRAIRIE 7745 CC Namura Piston Ring Set7750mm
$17.50
Time Remaining: 6d 3h 1m
Buy It Now for only: $17.50