Can anyone offer any advice as to how to go about cleaning power valves? I know as much that I have to remove the exhausts first, but I cant even get the bloody spring holding them in place off!
Where exactly are they on the bike and what do they look like? (yes, i have no idea )
Well, you can clean them but it takes a lot of elbow grease and time.
I will let other explain on getting them out (as I think it's pointed out on the website. Probably in the technical section).
once they are out, then it's time to clean them. I do this with a scraping tool such as a small flat head screw driver, or something else that has a small flat edge that you can scrap all the carbon build up off the power valves.
Once you clean off all the carbon build up, you can use some 3m synth steel wool to clean it up, and smooth everything out. I use mineral spirits to help break things down with the scraper and wool. Clean up the inside of the cylinders of all carbon, as well as the shaft to make sure there is no carbon on any of this.
You will need to know the best time to do this if when you have the cylinders off the engine. So when you are doing a top end. You can work on the valves by removing them from the cylinders still on the engine, but to clean up the cylinders you should have them off the bike (don't want that carbon getting into the engine). _________________ Charles Gallant
If you have a bench grinder, you can get a wire brush attachment for it. You can use that to clean the PVs faster and more efficiently than by hand.
Have you checked that your PVs are getting stuck? It would be such a waste of time to take them out and then to find they are clean as a whistle
If you're free tomorrow, you can pop round to my place and we can test the 2x regulator/rectifiers that I have. _________________ Jerry Lai
NSR250 [MC21SP]
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