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Two '75 KZ400's, low $, and a need for cheap speed
- koolaidtrees
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27 Sep 2009 08:33 #324249
by koolaidtrees
"A witty saying proves nothing"
~Voltaire
Two '75 KZ400's, low $, and a need for cheap speed was created by koolaidtrees
Hey all,
I am the proud owner of 2 1975 kz400's. One is a strong runner, with a newly cleaned and jetted carb, pod cleaners, 2-1 exhaust, hi-flow muffler, clean fluids, straight lightened frame and 19,xxx on the odo.
She has some mean blow-by, a new knock on the right side, and the old clutch is fading fast.
The other is a donor/practice bike which I've already scavenged cables, lights, wires, seat and ignition coil from. She's there mostly to see what I'll see when I do the real overhauling.
The runner is ready for new gaskets, rings and seals, and while I'm in there, I want to do what I can to make her better, stronger, faster, w/out spending $6 million.
If you have any tips or secrets, or general knowledge, please enlighten me. I have gas engine experience, but I am a newbie to kawi bikes in general.
Thanks for your help!
I am the proud owner of 2 1975 kz400's. One is a strong runner, with a newly cleaned and jetted carb, pod cleaners, 2-1 exhaust, hi-flow muffler, clean fluids, straight lightened frame and 19,xxx on the odo.
She has some mean blow-by, a new knock on the right side, and the old clutch is fading fast.
The other is a donor/practice bike which I've already scavenged cables, lights, wires, seat and ignition coil from. She's there mostly to see what I'll see when I do the real overhauling.
The runner is ready for new gaskets, rings and seals, and while I'm in there, I want to do what I can to make her better, stronger, faster, w/out spending $6 million.
If you have any tips or secrets, or general knowledge, please enlighten me. I have gas engine experience, but I am a newbie to kawi bikes in general.
Thanks for your help!
"A witty saying proves nothing"
~Voltaire
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- koolaidtrees
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27 Sep 2009 08:43 #324251
by koolaidtrees
"A witty saying proves nothing"
~Voltaire
Replied by koolaidtrees on topic Two '75 KZ400's, low $, and a need for cheap speed
Carbs. Cleaned and jetted carbs. 2 of 'em. Sorry.
"A witty saying proves nothing"
~Voltaire
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- Nebr_Rex
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27 Sep 2009 11:39 #324284
by Nebr_Rex
2002 ZRX1200R
81 GPz1100
79 KZ1000st daily ride
79 KZ1000mk2 prodject
78 KZ650sr
78 KZ650b
81 KZ750e
80 KZ750ltd
77 KZ400/440 cafe project
76 KZ400/440 Fuel Injected
www.dotheton.com/forum/index.php?topic=39120.0
.
Replied by Nebr_Rex on topic Two '75 KZ400's, low $, and a need for cheap speed
swap in a 440,direct replacement
try kz400.com
try kz400.com
2002 ZRX1200R
81 GPz1100
79 KZ1000st daily ride
79 KZ1000mk2 prodject
78 KZ650sr
78 KZ650b
81 KZ750e
80 KZ750ltd
77 KZ400/440 cafe project
76 KZ400/440 Fuel Injected
www.dotheton.com/forum/index.php?topic=39120.0
.
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- koolaidtrees
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27 Sep 2009 12:12 #324294
by koolaidtrees
"A witty saying proves nothing"
~Voltaire
Replied by koolaidtrees on topic Two '75 KZ400's, low $, and a need for cheap speed
Thanks, Rex. Any suggestions on if I wanna keep it a 400?
"A witty saying proves nothing"
~Voltaire
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- Nebr_Rex
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27 Sep 2009 13:20 #324304
by Nebr_Rex
2002 ZRX1200R
81 GPz1100
79 KZ1000st daily ride
79 KZ1000mk2 prodject
78 KZ650sr
78 KZ650b
81 KZ750e
80 KZ750ltd
77 KZ400/440 cafe project
76 KZ400/440 Fuel Injected
www.dotheton.com/forum/index.php?topic=39120.0
.
Replied by Nebr_Rex on topic Two '75 KZ400's, low $, and a need for cheap speed
mill the head,mine was milled.025 and 1194 for a base gasket(required to use base gasket on 400 because of the oiling system) which bring comp. ratio to 10.8 on a 440.smooth out any rough edges in the ports,valve and port size are plenty big allready.othre wise just good ring and valve seal.and sounds like rod bearings
2002 ZRX1200R
81 GPz1100
79 KZ1000st daily ride
79 KZ1000mk2 prodject
78 KZ650sr
78 KZ650b
81 KZ750e
80 KZ750ltd
77 KZ400/440 cafe project
76 KZ400/440 Fuel Injected
www.dotheton.com/forum/index.php?topic=39120.0
.
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- koolaidtrees
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27 Sep 2009 17:35 #324355
by koolaidtrees
"A witty saying proves nothing"
~Voltaire
Replied by koolaidtrees on topic Two '75 KZ400's, low $, and a need for cheap speed
That's awesome, Rex. Thanks.
I'm def gonna seat the valves and replace any worn or failing parts in the valvetrain, and was thinkin about boring it .5mm over, cuz I have xtra pistons that size anyway. Any idea how that'd work out, with shaving the head?
Or is it better to mill the head & keep the old pistons if theyre not too worn out?
I'm def gonna seat the valves and replace any worn or failing parts in the valvetrain, and was thinkin about boring it .5mm over, cuz I have xtra pistons that size anyway. Any idea how that'd work out, with shaving the head?
Or is it better to mill the head & keep the old pistons if theyre not too worn out?
"A witty saying proves nothing"
~Voltaire
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- Nebr_Rex
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27 Sep 2009 17:41 #324358
by Nebr_Rex
2002 ZRX1200R
81 GPz1100
79 KZ1000st daily ride
79 KZ1000mk2 prodject
78 KZ650sr
78 KZ650b
81 KZ750e
80 KZ750ltd
77 KZ400/440 cafe project
76 KZ400/440 Fuel Injected
www.dotheton.com/forum/index.php?topic=39120.0
.
Replied by Nebr_Rex on topic Two '75 KZ400's, low $, and a need for cheap speed
fresh straight cylinders are better,i think Z1 Ent. has rings,watch the dome height,some are different sizes
2002 ZRX1200R
81 GPz1100
79 KZ1000st daily ride
79 KZ1000mk2 prodject
78 KZ650sr
78 KZ650b
81 KZ750e
80 KZ750ltd
77 KZ400/440 cafe project
76 KZ400/440 Fuel Injected
www.dotheton.com/forum/index.php?topic=39120.0
.
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- koolaidtrees
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28 Sep 2009 15:16 #324500
by koolaidtrees
"A witty saying proves nothing"
~Voltaire
Replied by koolaidtrees on topic Two '75 KZ400's, low $, and a need for cheap speed
Thanks, Rex! You've been very helpful! I'll keep posting as I go thru the overhaul!
"A witty saying proves nothing"
~Voltaire
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