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Free stock damper mod

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56K views 232 replies 101 participants last post by  BillV  
#1 ·
So I posted this on another messag board, not specifically bike related but does get some bike traffic, and they think I am full fo shit. LOL.

Here is what I posted:
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Anyone ever try this?

I have an 04 GSXR 1000. I had read on gixxer.com that you can get the feel of an aftermarket steering damper by simply going to a heavier weight fork oil in the stock damper. I desided to try it out and I am very satisfied with the results.

As soon as I took the dampner off, I could easily pull it in and out with two fingers on each end. I think it comes stock with a 10wt oil in it. I pulled the screw out that holds the oil in and pumped it all out.

I got 1 quart of 20wt fork oil for about 8 bucks and cut a 2 liter soda bottle in half long ways. Completely submerged the dampner in oil and moved it back and forth until there were no more air bubles. Pulled the slider all the way out and with it still submerged reinstalled the screw that holds in the oil.

Little soap and water to clean the contraption up and wallah! It took a lot more effort to move the dampner in and out and it moved much more slowly by hand. I can feel a significant difference with it on the bike as well. Haven't had a slapper since. I would not go any heavier then a 20wt from what I have been told though.

$400 aftermarket feel and perfomance for 8 bucks. Can't beat it.
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I can't figure out why they think it's BS. :wtf
 
#3 ·
it makes a night and day difference with when the front end lightens up and also when you flick the bike side to side in high speed maneuvers. the only things is its becomes a bit stiff at parking lot type speeds. one thing that i did notice was that the stock one wasnt filled completeley. so i may take out a little oil to loosen it just a bit
 
#4 ·
I think the biggest difference is that the oil is decent quality and there is no air left in there.

The stock oil is crap and there is always air in there.

I think even if you replaced it with good quality fork oil and got all the air out it would be a noticable improvment.
 
#5 ·
im not going to say you are wrong about the stock 10wt oil because i cant find it in writing but a suzuki service tech. told me it was 2.5wt oil. i have had 20wt in mine for over one year 7,000miles and it feels just as good as the aftermarket one that was on my last bike.
 
#6 ·
Same here. Had it for about a year now and it's great. I don't even notice any problems with muscling it around at low speed in parking lots as I've grown used to it.

I rode my friends new RC51 that comes with no damper from the factory and the front end felt very uncomfortable to me as loose as it was.
 
#11 ·
hitman1k said:
I got 1 quart of 20wt fork oil for about 8 bucks and cut a 2 liter soda bottle in half long ways. Completely submerged the dampner in oil and moved it back and forth until there were no more air bubles. Pulled the slider all the way out and with it still submerged reinstalled the screw that holds in the oil.

I can't figure out why they think it's BS. :wtf
For less mess, I just put a 1" long hose big enought to go around the aluminium piece where the screw goes, keep the fluid always full and got all the air out with out making a mess or wasting much fluid.

I tryed 15wt and 20 wt, I like the 20wt, I have about 2500 miles, I did the same thing to 2 of my friends and they love it.

It is not adjustable....well...yes it is, but you have to change the fluid for that, but how many times do you adjust it any ways on the street after you find a good setting?:D

Anyways I seved $392.75 so I'm happy.:punk
 
#18 ·
I have been hearing about this for a long time and I think I'll finally go and do it.

Now does the steering/bars itself feel a lot more solid riding or only when your turning the bars????

My GPR made my the whole front end feel more solid and stable riding N a straight line...I don't feel like spending another 375 bucks on one now though.

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#20 ·
Has anyone tried a 30wt oil? I have and it's pretty stiff, I'm learning to like it though. At first I was scared of blowing up the damper from so much pressure but it's been holding up fine. The high-speed canyons around here are better with some resistance in your steering. It's a great investment and you can always loosen it up by sucking some air into it or throwing in the 20wt. Don't plan on doing any parking lot cruising with your girl on the back though.
 
#21 ·
WaynesNside said:
I have been hearing about this for a long time and I think I'll finally go and do it.

Now does the steering/bars itself feel a lot more solid riding or only when your turning the bars????

My GPR made my the whole front end feel more solid and stable riding N a straight line...I don't feel like spending another 375 bucks on one now though.
It gives you the same feel as a aftermarket damper. It feels stiffer when turning the bars at low speeds and makes the front feel more solid at high speeds. Just try it. You will not be dissapointed.

I am doing this for a friend of mine's K3 this weekend and I will take pics and make a detailed write up! :punk
 
#22 ·
As hitman1k says , the trick is to submerg the damper to fill it.

Lots of people use a syringe or something but it's really hard to get all the air out.

Instructions would be something like ...

1. Remove damper front bike
2. Remove oil plug from side of the body of the damper
3. Pump back and forth until all the old oil is gone
4. Make a tray long enough to fit the damper at full extension
5. Place damper in tray and fill with new oil of your choice
6. When damper is submerged start pumping back and forth
7. Continue to full extension both ways until all air is gone
8. Re fit the plug while submerged
9. Remove from oil and clean
10. Refit to bike
11. Check for feel and travel
12. Take it for a burn !

(Sorry about the spelling)
 
#24 ·
hitman1k said:
It gives you the same feel as a aftermarket damper. It feels stiffer when turning the bars at low speeds and makes the front feel more solid at high speeds. Just try it. You will not be dissapointed.

I am doing this for a friend of mine's K3 this weekend and I will take pics and make a detailed write up! :punk
I tried 15 today since I didn't want to go across town and let me say that was a waste of time...it felt like it was less resistance than stock...maybe I didn't get all of the air out, but I moved it back and fourth till I didn't see any more air.

I'm going to get 20wt tomorrow and hopefully get it all sorted out.

I'm hoping it's as good as you all say it is.

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#25 ·
can i use a 20w-50 engine oil for this or will it mean that when the oil changes temp the dampening rate will change?