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04-24-2008, 03:04 PM | #1 |
Jr. Member
Join Date: Jul 2007
Location: NY
Posts: 47
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Fork oil and or springs
Wondering if anyone has taken on the fork oil change procedure on their own? Got 27,000 miles on the clock and experiencing lots of fork dive. I've done all my own wrenching so far but taking the front shocks all apart and off the bike makes me queezy. Gadget's cartridge shock procedure seems straight forward. Anyone used it yet? Anyone switch to a progressive spring product for an 05-08 Nomad? Is there a progressive spring for the Nomad cartridge type shock? Thanks in advance.
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04-27-2008, 12:00 AM | #2 |
Join Date: Aug 2007
Location: Newmarket Ontario Canada
Posts: 35,387
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Fork oil and or springs
I changed my fork oil a couple weeks ago, its not that difficult. I removed the forks from the bike , and turned them upside down to drain after removing the top plugs (that was the hardest part, as the plugs were installed very tight). My bike dove a lot and I switched to 15 weight oil which helped. Next oil change I'll put in 20 weight oil, as it still dives a little more than I would like. The fairing may cause it to dive a little more than bikes with just a windsheild. I think there is a progressive spring available, I just can't remember where I saw it.
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04-27-2008, 12:53 AM | #3 |
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Fork oil and or springs
I've been using 15 weight oil in my forks for 2 years and like it.
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04-27-2008, 12:07 PM | #4 |
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Fork oil and or springs
At 30,300 miles I still haven't changed mine, and it needs it. I just bought regular Torco 15 wt fork oil, which is what I've used in my bikes for 30 years, but I'm thinking that straight weight fork oil seems sort of archaic. I've never looked for a multi-weight fork oil, but it seems like it would be better if the oil maintained viscosity when hot. Otherwise I may just use a heavier oil and suffer the stiff forks when cold.
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04-27-2008, 12:26 PM | #5 |
Sr. Contributor
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Fork oil and or springs
I've hear of running multi weight oil like 5-30wt and it works? I've never done it because I wonder how much heating up can your forks really do to the oil but I've been wrong many times before...
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I love my Victory Cross Country Tour 106. Smells like Victory! Ultra's are Limited There are two types of Harley riders. Those that trailer them and those that push them. The most Interesting Man in the World "Find the things in life you don't do well and don't do those things" Member # 0005 Login or Register to Remove Ads |
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04-27-2008, 12:52 PM | #6 |
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Join Date: Apr 2008
Location: Tamworth New Hampster 06 1600
Posts: 12,484
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Fork oil and or springs
BD, Thats a pretty good question. I for sure don't know the answer either. But what ever the days temp is, plus direct sun on the forks and then adding in use???
I have checked my rear shocks warm after a run and get spit on by warm oil, warmer than the air. I know I am not supposed to do that warm after riding, but at the time it was the 01 and I was having a problem handling, not knowing the dealer crushed the air line installing a new rear fender. I had the 'progressive 2 into 1 set up and only one shock was getting any air... and is why I was having a problem. So that tells me the oil gets warmer than air, but it wasn't like burning hot by any means.
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04-27-2008, 01:06 PM | #7 |
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Fork oil and or springs
Well, I will say this: many hydraulic systems have oil coolers installed on them. Hydraulic fluid can get hot all right.
Now, do forks get hot enough to warrant multi-weight oil? I dunno. It gets pretty hot where I park at the office though. |
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04-27-2008, 05:42 PM | #8 |
Join Date: Aug 2007
Location: Newmarket Ontario Canada
Posts: 35,387
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Fork oil and or springs
I don't think your fork oil would ever come close to getting hot enough to affect its performance.Hydraulic systems can run in excess of 3000psi and the oil is pump driven and is working cylinders and motors. It generates heat at a much higher rate than a fork traveling a couple of inches with a comparatively light load on it.
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2002 Nomad aka Bountyhunter VBA #27 VROC #18951 |
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04-27-2008, 06:34 PM | #9 |
Sr. Contributor
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Fork oil and or springs
Unless Todd's but overweight Butt is in the bike. Theres your 3000lbs of pressure right there!
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I love my Victory Cross Country Tour 106. Smells like Victory! Ultra's are Limited There are two types of Harley riders. Those that trailer them and those that push them. The most Interesting Man in the World "Find the things in life you don't do well and don't do those things" Member # 0005 |
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04-27-2008, 06:41 PM | #10 |
Join Date: Aug 2007
Location: Newmarket Ontario Canada
Posts: 35,387
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Fork oil and or springs
Then it would bottom out and become a hardtail.
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04-27-2008, 08:18 PM | #11 |
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Fork oil and or springs
Well it probably never develops anything like 3000 psi, but I can feel the fork's performance change from the time I take it out of the garage in the morning untill I put it away after riding in traffic where it's 100<sup>o</sup>F+
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