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.

1979 1980 1981 Kawasaki Drifter 340 Piston Rings 13008 3007 Std Size
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Wiseco Std Piston for Kawasaki Invader 440 78 80
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Kawasaki Vintage Snowmobile NEW Piston Pin 340 Inv all
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Kawasaki Vintage Snowmobile NOS Piston 81 82 Intr 81 Dr
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LeMans Kawasaki Snowmoble Piston 8072
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Wiseco Piston Kit 6800 mm Kawasaki Intruder 440 1978 1980
Wiseco Piston Kit 6800 mm Kawasaki Intruder 440 1978 1980
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Time Remaining: 6d 7h 47m
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Wiseco Piston Kit 6800 mm Kawasaki Drifter 440 1978 1980
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Wiseco Piston Kit 6950 mm Kawasaki Intruder 440 1978 1980
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Wiseco Piston Kit 6950 mm Kawasaki Drifter 440 1978 1980
Wiseco Piston Kit 6950 mm Kawasaki Drifter 440 1978 1980
$94.72
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Wiseco Piston Kit 6950 mm Kawasaki Invader 440 1978 1980
Wiseco Piston Kit 6950 mm Kawasaki Invader 440 1978 1980
$94.72
Time Remaining: 6d 8h 27m
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ARCTIC CAT EL TIGRE  EL TIGRE Z 340 KAWASAKI STANDARD PISTON RINGS OEM PART
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ARCTIC CAT KAWASAKI 440CC PISTON RINGS AFTERMARKET STILL IN PACKAGE NOS ITEM
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ARCTIC CAT KAWASAKI 340 PISTON RINGS WITH TOP L RING NEW OLD STOCK IN THE BOX
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Wiseco Piston Kit 6800 mm Kawasaki Intruder 440 1981
Wiseco Piston Kit 6800 mm Kawasaki Intruder 440 1981
$79.34
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Wiseco Piston Kit 6800 mm Kawasaki Drifter 440 1981 1982
Wiseco Piston Kit 6800 mm Kawasaki Drifter 440 1981 1982
$79.34
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Wiseco Piston Kit 6800 mm Kawasaki Invader 440 1981 1982
Wiseco Piston Kit 6800 mm Kawasaki Invader 440 1981 1982
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KAWASAKI 399CC TWIN CYL STANDARD BORE POWERDOME PISTON WITH RING NEW OLD STOCK
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KAWASAKI NOS PISTON WRIST PIN JS440 JS550 13002 504
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Kawasaki Astro Inviter 340 Piston rings NOS 13008 507
Kawasaki Astro Inviter 340 Piston rings NOS 13008 507
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OEM Style Pistons Arctic Cat Kawasaki Engine 9688PS
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2003 2006 Kawasaki KLX 400 9146 CC Namura Piston Kit 9150mm
2003 2006 Kawasaki KLX 400 9146 CC Namura Piston Kit 9150mm
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95 09  11 13 Kawasaki KX100 5246 CC Namura Piston Kit 6260mm
95 09 11 13 Kawasaki KX100 5246 CC Namura Piston Kit 6260mm
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1992 2003 Kawasaki KX250 6785 CC Namura Piston Kit 6790mm
1992 2003 Kawasaki KX250 6785 CC Namura Piston Kit 6790mm
$65.10
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2005 2008 Kawasaki KX250 6635 CC Namura Piston Kit 664mm
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2000 2013 Kawasaki KX65 4496 CC Namura Piston Kit 4496mm
2000 2013 Kawasaki KX65 4496 CC Namura Piston Kit 4496mm
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1988 1990 Kawasaki KX80 4796 CC Namura Piston Kit 4796mm
1988 1990 Kawasaki KX80 4796 CC Namura Piston Kit 4796mm
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2000 2013 Kawasaki KX65 4546 CC Namura Piston Kit 4546mm
2000 2013 Kawasaki KX65 4546 CC Namura Piston Kit 4546mm
$43.40
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2000 2013 Kawasaki KX65 4595 CC Namura Piston Kit 4595mm
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1992 2003 Kawasaki KX250 6685 CC Namura Piston Kit 6690mm
1992 2003 Kawasaki KX250 6685 CC Namura Piston Kit 6690mm
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2005 2008 Kawasaki KX250 6636 CC Namura Piston Kit
2005 2008 Kawasaki KX250 6636 CC Namura Piston Kit
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1988 1990 Kawasaki KX80 4797 CC Namura Piston Kit 4797mm
1988 1990 Kawasaki KX80 4797 CC Namura Piston Kit 4797mm
$55.46
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95 09  11 13 Kawasaki KX100 5244 CC Namura Piston Kit 525mm
95 09 11 13 Kawasaki KX100 5244 CC Namura Piston Kit 525mm
$58.24
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1992 2003 Kawasaki KX250 6785 CC Namura Piston Ring Set 6790mm
1992 2003 Kawasaki KX250 6785 CC Namura Piston Ring Set 6790mm
$14.06
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