oiling mod for the 04/05 10r - Kawasaki ZX-10R.net
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post #1 of 17 Old 02-05-2012, 08:06 AM Thread Starter
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oiling mod for the 04/05 10r

I have a 04 zx10 grudge bike I recently purchased, the bike had a spunt bearing on the #3 journal. I keep hearing about a crank and lower engine case mod for additional oil flow. Also I have heard of adding a AN washer to the oil relief to raise the oil pressure. If anyone has any info pm me.
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post #2 of 17 Old 02-05-2012, 08:16 AM
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Upgrade the oil valve with this .. http://www.schnitzracingstore.com/ca...showprevnext=1
and shimming the pump with a washer is another way of getting little more pressure but really don't need to do both.

07-ZX10R-SOLD
, 1/5th insert, -1/+5,comp werkes decatted,PC3+multi-hub,piperX,30 dry shot,2custom maps,Ballistic EVO2,Pazzo shorties,SATO rearsets,HealTech,ZG Corsa,EBC XC Gen3 rotors,Vesrah pads, SS lines, Gen3 calipers, etc and stretched 8" so it won't flip
05-ZRX1200R-sold
04-KX500-sold
1975 RD350-garage queen
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post #3 of 17 Old 02-05-2012, 09:57 AM
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sorry for me still being new to working on bikes but does this require removal of the engine or is this something thats not bad to install
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post #4 of 17 Old 02-05-2012, 10:20 AM
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drop the oil pan,and you will have full access to the oil relief valve.

2004 ZX10R-few mods here and there......
and even made more Evil by Woolich.
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post #5 of 17 Old 02-05-2012, 11:11 AM
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sweet thanks bro
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post #6 of 17 Old 02-05-2012, 11:23 AM
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would you recommend this on a stocker?

I've 30,000 miles on my '04.
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post #7 of 17 Old 02-05-2012, 11:24 AM
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Not ZX10R related, but on my race bike (Yamaha FZR400) which is also an engine rather known for oil starvation issues, I just took apart the standard oil pressure valve, found a washer the right size to shim the spring, and put it back together. Don't know the effect on oil pressure but it has to be higher.


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post #8 of 17 Old 02-05-2012, 11:47 AM
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cycle concepts is who u need to talk to, they know the correct mods and i believe the cases are involved. those oil relief valves work, but can blow the oil filter off the bike if revved cold.

Last edited by gazx10; 02-05-2012 at 11:50 AM.
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post #9 of 17 Old 02-05-2012, 12:07 PM
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Yeah there is a case mod too. Kawasaki seems to offset the hole in the case for oil flow slightly. This is a restriction. Enlarging the hole allows faster flow rate. This is only needed to be done on very high hp motors. Like in excess of 250hp or even more. But for stock motors, small nitrous or turbo builds and uptown 3mil over bores the oil relief valve is sufficient. But big grudge motors should research the oil flow hole in the case like mentioned. On psycho bike cycle concepts discussed the offset oil hole in the cases in a thread a while ago. They have worked on numerous grudge 10r motors and discovered that to be a oil starvation concern on HIGH horsepower 10R's.

07-ZX10R-SOLD
, 1/5th insert, -1/+5,comp werkes decatted,PC3+multi-hub,piperX,30 dry shot,2custom maps,Ballistic EVO2,Pazzo shorties,SATO rearsets,HealTech,ZG Corsa,EBC XC Gen3 rotors,Vesrah pads, SS lines, Gen3 calipers, etc and stretched 8" so it won't flip
05-ZRX1200R-sold
04-KX500-sold
1975 RD350-garage queen
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post #10 of 17 Old 02-05-2012, 12:14 PM
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The case mod is a bit more labor intensive if I remember correctly but if the thread starters bike already spun a bearing in the past, this should likely be done. Raising the oil pressure 30 psi by upgrading the relief valve won't help the oil flow any faster , well it will, but the case mod really helps to circulate the oil.

Is your motor NA or boosted?

07-ZX10R-SOLD
, 1/5th insert, -1/+5,comp werkes decatted,PC3+multi-hub,piperX,30 dry shot,2custom maps,Ballistic EVO2,Pazzo shorties,SATO rearsets,HealTech,ZG Corsa,EBC XC Gen3 rotors,Vesrah pads, SS lines, Gen3 calipers, etc and stretched 8" so it won't flip
05-ZRX1200R-sold
04-KX500-sold
1975 RD350-garage queen
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