Oil Change Procedure: Difference between revisions

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It's not completely necessary to pull the screen, but you'd be surprised how many big chunks of stuff are in there. On Duke's Rally bike there was some trash in the engine before it was rebuilt. So, to be sure he got it all out, the screen was checked at every oil change after the rebuild. There was less trash in it with each oil change.. If it hadn't been cleaned, the screen would probably be 60-80% clogged. At the 20k oil change there were only a couple small pieces in the screen, so it probably won't need to be checked again for a while.

~~These pictures show~~ a bike that had 8800 miles on it. The goop is most likely gasket sealant from when the two halves of the engine case were assembled. The excess has to go somewhere. The stuff that goes to the inside of the engine sometimes falls off into the oil.

The composite picture on the left shows a bike that had 8800 miles on it. The goop is most likely gasket sealant from when the two halves of the engine case were assembled. The excess has to go somewhere. The stuff that goes to the inside of the engine sometimes falls off into the oil.

[[Image:538557.jpg|~~150px~~]]

The right photo is of a bike with 32,000 miles. The owner (and, most likely, the previous owner) didn't know about the screen until a friend showed him. Stuff caught in this one (instead of circulating back through the engine) was a combination of grit, gasket forming material, and a few silver metal shavings.

[[Image:538557.jpg|120px]] [[Image:oilscreen2.jpg|200px]]

In a new motor there will likely be less trash floating around, so it's recommended to check the screen at the second or third oil change, then every couple oil changes after that, until there's no new trash in the screen.

As far as actual cleaning of the screen goes, you can pretty much just wipe the screen clean with a rag. If you do need to spray it, WD-40 works fine. There are no gaskets to worry about. Just remove, clean, and replace.

@@ Line 30: / Line 30: @@
 It's not completely necessary to pull the screen, but you'd be surprised how many big chunks of stuff are in there. On Duke's Rally bike there was some trash in the engine before it was rebuilt. So, to be sure he got it all out, the screen was checked at every oil change after the rebuild. There was less trash in it with each oil change.. If it hadn't been cleaned, the screen would probably be 60-80% clogged. At the 20k oil change there were only a couple small pieces in the screen, so it probably won't need to be checked again for a while.
-These pictures show a bike that had 8800 miles on it. The goop is most likely gasket sealant from when the two halves of the engine case were assembled. The excess has to go somewhere. The stuff that goes to the inside of the engine sometimes falls off into the oil.
+The composite picture on the left shows a bike that had 8800 miles on it. The goop is most likely gasket sealant from when the two halves of the engine case were assembled. The excess has to go somewhere. The stuff that goes to the inside of the engine sometimes falls off into the oil.
-[[Image:538557.jpg|150px]]
+The right photo is of a bike with 32,000 miles. The owner (and, most likely, the previous owner) didn't know about the screen until a friend showed him. Stuff caught in this one (instead of circulating back through the engine) was a combination of grit, gasket forming material, and a few silver metal shavings.
+[[Image:538557.jpg|120px]]  [[Image:oilscreen2.jpg|200px]]
 In a new motor there will likely be less trash floating around, so it's recommended to check the screen at the second or third oil change, then every couple oil changes after that, until there's no new trash in the screen.
 As far as actual cleaning of the screen goes, you can pretty much just wipe the screen clean with a rag. If you do need to spray it, WD-40 works fine. There are no gaskets to worry about. Just remove, clean, and replace.