quetech Posted August 3, 2020 Share Posted August 3, 2020 Changed my fork oil out a few weeks ago during lockdown and was amazed at the state of it after 4500 miles. Photo shows it after it had been sitting in the containers for a couple of weeks settling out. replaced with valvoline 10w in the rebound and 15w in the compression and the bike seems a lot more composed at the front end. I can get the viscosity if anybody is interested 3 1 Link to comment Share on other sites More sharing options...
GTO MIKE Posted August 4, 2020 Share Posted August 4, 2020 Wow looks pretty bad ! Do you ride any off road or very dusty conditions? Looks some I changed back in my dirt bike days! MIKE Link to comment Share on other sites More sharing options...
thewrenchbender Posted August 5, 2020 Share Posted August 5, 2020 (edited) On 8/3/2020 at 5:42 PM, quetech said: Changed my fork oil out a few weeks ago during lockdown and was amazed at the state of it after 4500 miles. Photo shows it after it had been sitting in the containers for a couple of weeks settling out. replaced with valvoline 10w in the rebound and 15w in the compression and the bike seems a lot more composed at the front end. I can get the viscosity if anybody is interested Did air-over-oil struts on planes for years, have only had an opportunity to change bike fork oil a fraction as many times. Not sure what the dynamic is-but both tend to come out really nasty. First MamaYama factory fork oil change shocked me also... Edited August 5, 2020 by thewrenchbender Spelling 1 Link to comment Share on other sites More sharing options...
quetech Posted August 5, 2020 Author Share Posted August 5, 2020 Standard road riding for 4500 miles is all I have done, not sure how many of you read Dave Moss articles but he had a similar oil condition on his GT. The oil was really gloopy and a bit strange really. I have found the front end a good bit firmer with a lot less diving when you hit the brakes, I was also able to wind the damping off quite a bit from what I had with the factory oil. 1 Link to comment Share on other sites More sharing options...
Supporting Member piotrek Posted August 5, 2020 Supporting Member Share Posted August 5, 2020 I dump my fork oil at the end of each season, and it looks just like that. Some photos for reference here. I fill the fork with cheaper oil first and work the damper to help purge chalky residue from the cartridge before filling with proper oil. 1 Link to comment Share on other sites More sharing options...
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