Cylinder head cleaning.

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11/1/2017 10:13 PM

Vital members I need your advise. I just tore apart my top end on my 2016 rmz 450. Im just wondering what you guys use to clean it out with? The valves are pretty dirty to.Photo

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Any advise would be much appreciated!

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11/2/2017 1:14 AM

Soak it in a heated degreaser. A combination of brake cleaner and scotch brite with get the carbon off. Inside the cylinder id probably pass on the scotch brite tho. Maybe 0000 steel wool would be ok. Razerblade for the gasket material

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2009 Kawasaki KX450F
2009 Kawasaki KX250F
2002 Suzuki GSXR 600

11/2/2017 8:31 AM

Have you been running fuel with lead in this bike ? That's not a good idea in modern bikes titanium valves don't like LEAD.
For cleaning the valves I picked up a cheap ultrasonic cleaner from Harbor Freight. it only runs in 5 minutes cycle you have to keep resetting it but they come out like brand new, run a 50/50 mix of water and Simple Green.

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11/2/2017 11:24 AM
Edited Date/Time: 11/2/2017 11:25 AM

The pros use soda blasting for the heads/valves (or vapor blasting). The cylinder inside will clean up with WD40 and scotchbrite

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11/2/2017 12:38 PM
Edited Date/Time: 11/2/2017 12:39 PM

RCF wrote:

Have you been running fuel with lead in this bike ? That's not a good idea in modern bikes titanium valves don't like LEAD.
For cleaning the valves I picked up a cheap ultrasonic cleaner from Harbor Freight. it only runs in 5 minutes cycle you have to keep resetting it but they come out like brand new, run a 50/50 mix of water and Simple Green.

FYI, this Simple Green HD product is safe on aluminum unlike standard simple green, so it can be used on many other parts other than just your valves; it's what I run in my Ultrasonic, at a ratio of 5 parts water to 1 part solution. Then again, I use mine for mostly for cleaning carbs. Stronger solution for carbon build up sounds accurate. Pretty sure only Home Depot carries this simple green HD stuff (or Amazon) https://www.homedepot.com/p/Simple-Green-Pro-HD-128-oz-Professional-Grade-Heavy-Duty-Cleaner-2110000413421/100550784?cm_mmc=Shopping%7cTHD%7cG%7c0%7cG-BASE-PLA-D28I-Cleaning%7c&gclid=CjwKCAjwhOvPBRBxEiwAx2nhLuV93fM4fMfgceb9ZAEJZa1IfffKPC_hwHaXIeU-irgY2Nl3mMd-ZBoCRUUQAvD_BwE&gclsrc=aw.ds&dclid=CI3l2vnRoNcCFUNSDAodSXoM_w

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Positively, absolutely 110% obsessed with anything MOTO.

11/2/2017 4:13 PM

RCF wrote:

Have you been running fuel with lead in this bike ? That's not a good idea in modern bikes titanium valves don't like LEAD.
For cleaning the valves I picked up a cheap ultrasonic cleaner from Harbor Freight. it only runs in 5 minutes cycle you have to keep resetting it but they come out like brand new, run a 50/50 mix of water and Simple Green.

I just got the bike. Not sure what the previous owner ran. I run 50/50 mix of vp 110 and 97 pump gas.

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