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Old 12-19-2007, 08:31 PM   #1
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Fork tube oxidized? Need opinions!

Hello to all motohoustoner's..

Looking at this bike to buy for my GF.

2002 Honda cr80.

Problem: the fork tubes seem to be flaking just above the lower triple clamp. It seriously looks like something is trying to "push through" the metal. The oxidized sedtion stands off approx. 5mm from the rest of the surface of the tube. the bike rides fine, and the forks are dampening as they should, smoothly and progressively.

I took about 15 pictures and only a few turned out decently.

this is the front of the left fork.
l c2537936610fa1a16220184940db28cd

This is a bad pic of the right fork, but you can see, it has the same type of oxidation on it.
l 29eb6d0ba7b776e0d2a02fefafd7294e


Here is a pic to show where the oxidation is on the forks. All is on the front side of the forks, and they all generally line up with each other vertically along the tube.
l 42a87b524772863bd0771fb79981f835


So what are your thoughts on this?? I am trying to decide if the forks are toast, or if the damage is only on the outside. If I decide to purchase the bike, I will of course open up the forks and inspect them. Has anyone ever seen something like this before? Someone had mentioned that maybe there was condensation inside the fork tube and this was the effect of the moisture finding it's way out.. :dontknow:



Thanks for all your opinions!
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Old 12-19-2007, 08:42 PM   #2
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By the way, I found a set of forks on ebay that had sold for 380.00 plus shipping, so i'd be looking at near 420.00 for a set of used forks. Bike Bandit lists the bare outer tubes at 353.00 each.

So the options are:
- getting cheap means inspect them then ride it till you have a problem
- Mr. cost-effective looks for used forks and spends ~420.00
- big baller gets new fork tubes and spends ~750.00
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Old 12-19-2007, 09:18 PM   #3
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This is just my opinion, so take it how you want, but something on those forks just isn't right. The first picture appears as if the fork tubes have been scraped really badly, almost "peeling" back a layer(not sure if it's possible). I have seen hundreds of oxidized/dirty/abused/neverseenawashjob forks, and I've never seen that. Either get the seller to fess up to the cause of the problem and drop at least $380 off the price, or find another bike.
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Old 12-19-2007, 10:16 PM   #4
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The sectin on the pics that is not gold anymore is from the top gold anodized layer breaking away. the area was not scraped, it reminds me of something really rusty where it is separating in 'flakes' of rust.. When i pointed it out, he was honestly dumbfounded and so was his dad. I offered 300 under his listed price, and he said he'd do 200 under his listed price. The bike is in good shape other than that and it needs a rear tire b/c it has a crack from dry-rotting.

do you think it's just surface damage or that it's messed up on the inside as well?? Obviously it is something that needs attention sooner or later as it only gets worse.
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Old 12-19-2007, 10:17 PM   #5
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Old 12-19-2007, 10:22 PM   #6
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Quote:
Originally Posted by MACK954 View Post
BUY A NEW 1
Wow!

two new tubes cost nearly as much as the bike!!

Still can't decide whether or not to purchase or not tomorrow...
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Old 12-19-2007, 10:23 PM   #7
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here's a pic of the bike

l b0d8afd9fdea685734300678289a7a1c
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Old 12-19-2007, 11:56 PM   #8
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come on.... I know everyone here on MH has an opinion!
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Old 12-20-2007, 08:05 AM   #9
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i would say that its ok, that shouldn't affect the internals IMO. pending on how much he's asking for it, i'd say jew him down as much as you can and take it. How's it run? start up pretty fast, does it feel strong? It looks pretty rough so i wouldn't go too much on it.
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Old 12-20-2007, 08:20 AM   #10
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I'd be a bit concerned about the integrity of the fork, as jet said, that doesn't look normal.

You've got some good pics but it's still hard to say without seeing it.
If you can, bring it by and I'll take a quick look at it.
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Old 12-20-2007, 11:27 AM   #11
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Quote:
Originally Posted by Patrick View Post
I'd be a bit concerned about the integrity of the fork, as jet said, that doesn't look normal.

You've got some good pics but it's still hard to say without seeing it.
If you can, bring it by and I'll take a quick look at it.
It definitely doesn't look normal!! I've never seen anything like this on any bike....

Thanks for the invite. I will probably pick it up today, after he came down 250.00 from a good price. I am going to pull the fork cap off and try to take a peek down the tube to see how the inside of the tube and the internals look.
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Old 12-20-2007, 11:31 AM   #12
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Quote:
Originally Posted by CarbonR1 View Post
i would say that its ok, that shouldn't affect the internals IMO. pending on how much he's asking for it, i'd say jew him down as much as you can and take it. How's it run? start up pretty fast, does it feel strong? It looks pretty rough so i wouldn't go too much on it.
Ohh yeha, runs good, starts right up when cold or warm, full of clean coolant, will power up 4th gear, so it's still pretty strong. It has a little exhaust leak right at where the exhaust head pipe meets the head, but that's little stuff.

Hey maybe I can buy the GF some sportsman tires for xmas
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Old 12-20-2007, 12:28 PM   #13
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heres the deal, if your getting a hella good deal buy it ride it until it craps out then buy new forks. My rm125 had the same spots, i think it was from brake fluid. Rode it for 2 years like that never had a problem. Just washed it after every ride.
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Old 01-20-2008, 05:15 PM   #14
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I took the forks apart, and they look great inside. I ended up grinding down the soft oxidized metal will I got to some good, solid metal and then painted clearcoat over the entire fork tube. It's been approx 1 month and it has been ridden several times, and the forks seem fine. The old fluid was pretty nasty, as you can imagine, but there were no particles in it. Thanks to everyone for their imput.
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