DIY - Oil Cooler Kit

Fred659 · July 9th, 2022, 04:33 PM

Hi everybody,

It's been a long time since I posted here but I think this is a good one. My race ninja 250 now has a 300 engine in it (RIP 250) and it has 43 hard working horses at the wheel. Last year, the water temp was always 110c at the end of my sessions and I had to change the oil quite often. Long story short, I decided to put an oil cooler on the bike, yes for cooling, but for the extra oil capacity too. I now use 10w50 oil in the bike.

The hard part was to find the plate that would fit the 300 bloc. the rest is pretty strait forward. You can see the machining on the plate on the pictures of the plate on the bike. Now the temp stay below 100c and oil at around 110c. Please note that I have a Yosh full system and hoses routing can vary on your application. I did put some header tape to reduce the heat near the hoses just for safety.

Hi hope that my thread will help some of you guys. So, the most economic way I found is the following:

Sandwich plate: GReddy Engine Oil Block Cooler Sandwich Plate Adapter, Type E M20 x 1.50 -10AN (it has a thermostat)
You need to shave the plate to have a max diam of 71mm or it wont fit the 300 block. The adaptor is m20 to 3/4-16
https://conceptzperformance.com/gred...al_p_31777.php

Oil Filter : Wix WL10239 or Toro Equivalent
this is important because you need to have the gasket of the filter on the flat part of the plate and the stock filter won't do the trick.
wixfilters.com/Lookup/PartDetails.aspx?Part=2162117

Oil cooler : 2003–2012 sv650

AN10 fittings for the Oil Cooler (2X): AN10 to m12 x 1.0mm
https://www.amazon.ca/-/fr/gp/produc...?ie=UTF8&psc=1

AN10 fittings kit: cheap amazone one.
https://www.amazon.ca/-/fr/gp/produc...?ie=UTF8&psc=1

Temp Gauge: Cheap ebay / amazon one
https://www.ebay.ca/itm/164301269908...MAAOSwA8VfF-GP

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Topaz · July 9th, 2022, 06:08 PM

Very impressive!

@Ghostt may enjoy this post, as he's working on fitting a 300 engine in a 250.

Ghostt · July 16th, 2022, 09:22 AM

Quote:

Originally Posted by Topaz

Very impressive!

@Ghostt may enjoy this post, as he's working on fitting a 300 engine in a 250.

I had an oil cooler on the bike before the engine went. Not planning on putting one on at this time.

I don't race the bike, and it will get limited use, as I have other bikes to ride, but we shall see.

Looks like a clean install, well done @Fred659

Alex · August 5th, 2022, 08:03 AM

Nice work!

Mohawk · November 29th, 2023, 11:56 AM

Good work but why not just put a cooler on the head lube hose ? I did that on my ZZR250 �� Much simpler to plumb in.

Fred659 · November 29th, 2023, 11:59 AM

Quote:

Originally Posted by Mohawk

Good work but why not just put a cooler on the head lube hose ? I did that on my ZZR250 �� Much simpler to plumb in.

Because I wanted it to be rheostat controlled.

July 9th, 2022, 04:33 PM	#1
Fred659 ninjette.org member Name: Frederic Location: Quebec City Join Date: Jan 2020 Motorcycle(s): 08 Race Prepped ZX-10r, 09 Race Prepped Ninja 250 (300 motor). 74 Norton Commando 850 (Project) Posts: 45	DIY - Oil Cooler Kit Hi everybody, It's been a long time since I posted here but I think this is a good one. My race ninja 250 now has a 300 engine in it (RIP 250) and it has 43 hard working horses at the wheel. Last year, the water temp was always 110c at the end of my sessions and I had to change the oil quite often. Long story short, I decided to put an oil cooler on the bike, yes for cooling, but for the extra oil capacity too. I now use 10w50 oil in the bike. The hard part was to find the plate that would fit the 300 bloc. the rest is pretty strait forward. You can see the machining on the plate on the pictures of the plate on the bike. Now the temp stay below 100c and oil at around 110c. Please note that I have a Yosh full system and hoses routing can vary on your application. I did put some header tape to reduce the heat near the hoses just for safety. Hi hope that my thread will help some of you guys. So, the most economic way I found is the following: Sandwich plate: GReddy Engine Oil Block Cooler Sandwich Plate Adapter, Type E M20 x 1.50 -10AN (it has a thermostat) You need to shave the plate to have a max diam of 71mm or it wont fit the 300 block. The adaptor is m20 to 3/4-16 https://conceptzperformance.com/gred...al_p_31777.php Oil Filter : Wix WL10239 or Toro Equivalent this is important because you need to have the gasket of the filter on the flat part of the plate and the stock filter won't do the trick. wixfilters.com/Lookup/PartDetails.aspx?Part=2162117 Oil cooler : 2003–2012 sv650 AN10 fittings for the Oil Cooler (2X): AN10 to m12 x 1.0mm https://www.amazon.ca/-/fr/gp/produc...?ie=UTF8&psc=1 AN10 fittings kit: cheap amazone one. https://www.amazon.ca/-/fr/gp/produc...?ie=UTF8&psc=1 Temp Gauge: Cheap ebay / amazon one https://www.ebay.ca/itm/164301269908...MAAOSwA8VfF-GP DSC_0836.jpg DSC_0835.jpg DSC_0790.jpg DSC_0849.jpg DSC_0842.jpg DSC_0846.jpg DSC_0848.jpg DSC_0850.jpg DSC_0864.jpg DSC_0863.jpg DSC_0973.jpg Last futzed with by Fred659; July 9th, 2022 at 04:34 PM. Reason: add thermostat comment

August 5th, 2022, 08:03 AM	#4
Alex ninjette.org dude Name: 1 guess :-) Location: SF Bay Area Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE, '15 CRF110F, '13 TT-R50E Posts: Too much. Blog Entries: 7	Nice work! __________________________________________________ Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered)

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July 9th, 2022, 06:08 PM	#2
Topaz ninjette.org member Name: Topaz Location: South Florida Join Date: Mar 2017 Motorcycle(s): 2013 Ninja 300 / Suzuki DR-Z 400 SM Posts: 213	Very impressive! @Ghostt may enjoy this post, as he's working on fitting a 300 engine in a 250.

November 29th, 2023, 11:56 AM	#5
Mohawk ninjette.org guru Name: Chris Location: Bristol, UK Join Date: Feb 2016 Motorcycle(s): ZZR250, VFR800 Posts: 461	Good work but why not just put a cooler on the head lube hose ? I did that on my ZZR250 �� Much simpler to plumb in.