SuzukiSavage.com
/cgi-bin/YaBB.pl
General Category >> Technical Documents/Reference >> Sagging fork springs fix
/cgi-bin/YaBB.pl?num=1241714473

Message started by Phelonius on 05/07/09 at 09:41:13

Title: Sagging fork springs fix
Post by Phelonius on 05/07/09 at 09:41:13

With only a little over 5 inches of total travel on the front forks, any sagging due to older springs or heavier riders,(me), becomes an issue that needs attention.
Inside the top of the fork leg is a thinwall steel tyube that is the preload spacer for the system. I lathed out a couole of one inch booster spacers to fit.
The outside diameter was 1.285" and the end wascot to a perfect fit inside the original tubular spacer 1.200".
If you do not have a metric wrench of propert size, a 1 1/8th wrench fits perfectly. put a THIN coat of bearing grease on the rubber O-ring of the cap. Fit the spacer into the spacer and set the cap on top.
Generous thumb pressure is required while feeling for the thread to begin fairly. The photo shows how to this with minimum pain.
http://p1.bikepics.com/2009/05/07/bikepics-1660028-800.jpg
http://p1.bikepics.com/2009/05/07/bikepics-1660035-800.jpg
http://p1.bikepics.com/2009/05/07/bikepics-1660043-800.jpg
http://p1.bikepics.com/2009/05/07/bikepics-1660045-800.jpg
Phelonius

Title: Re: Sagging fork springs fix
Post by diamond jim on 05/07/09 at 10:22:08

Great job and great post!  I've seen people do this with PVC pipe but I like yours better.

Title: Re: Sagging fork springs fix
Post by PTRider on 05/07/09 at 11:00:28

Progressive doesn't have a listing for fork springs for our motorcycle, but has anyone checked their spec sheet to see if some fit?
http://www.progressivesuspension.com/pdfs/7100-105.pdf

Or, does anyone have a spare spring around that they can send to Progressive...if Progressive is interested...and find out of any will work or if they'll wind springs for us?  I'd take part in a group buy if Progressive was interested.

Title: Re: Sagging fork springs fix
Post by verslagen1 on 05/07/09 at 11:16:47

I have a set out of a wrecked bike, not to straight though.

Progressive local to me, I can ride over and let borrow it for awhile for a set.   ;)

Maybe they'd look at the rears at the same time.

Title: Re: Sagging fork springs fix
Post by Phelonius on 05/07/09 at 11:39:34

I have heard about the PVC fix, but being the basic paranoid that I am, I worried about the plastic deforming under pressure.
By making them out of steel, I have more piece of mind about that.
Besides, this way I put a shoulder on that keeps it centered on the original spacers.

Phelonius

Title: Re: Sagging fork springs fix
Post by marshall13 on 05/07/09 at 12:01:42

nice solution!!  for the weak-thumbed, a 3/4 inch dowel can be "stabbed" into the top of the cap, while turning the wrench...hardwood or plastic, no scratches or scuffs...screwdriver handle for the late night after home depot hours tinkerers...lol

Title: Re: Sagging fork springs fix
Post by bill67 on 05/07/09 at 15:40:36

When you get fork springs from progressive they come with pvc spacer,I put them on my suzuki 1500 and the front rides better.

Title: Re: Sagging fork springs fix
Post by PTRider on 05/08/09 at 09:56:38


647760617E7375777C23120 wrote:
I have a set out of a wrecked bike, not to straight though.

Progressive local to me, I can ride over and let borrow it for awhile for a set.   ;)

Maybe they'd look at the rears at the same time.

Great!  Turn on your salesman-mode and convince them that they'd make a lot of money selling products for Savages/S40s.

Title: Re: Sagging fork springs fix
Post by Phelonius on 05/19/09 at 09:36:25


555E5B5B0100370 wrote:
When you get fork springs from progressive they come with pvc spacer,I put them on my suzuki 1500 and the front rides better.


Plastic is fantastic but steel is real.

Phelonius

Title: Re: Sagging fork springs fix
Post by mikestrikes on 05/19/09 at 10:27:44

I have mine tore apart right now, but I took my spacers OUT !
Put in a set thats only 1 1/2" tall...........  8-)

Title: Re: Sagging fork springs fix
Post by bill67 on 05/19/09 at 11:39:43


7D454841424344585E2D0 wrote:
[quote author=555E5B5B0100370 link=1241714473/0#6 date=1241736036]When you get fork springs from progressive they come with pvc spacer,I put them on my suzuki 1500 and the front rides better.


Plastic is fantastic but steel is real.

Phelonius[/quote]
 It takes longer for plastic to rust

Title: Re: Sagging fork springs fix
Post by Phelonius on 05/23/09 at 11:04:13


202B2E2E7475420 wrote:
[quote author=7D454841424344585E2D0 link=1241714473/0#8 date=1242750985][quote author=555E5B5B0100370 link=1241714473/0#6 date=1241736036]When you get fork springs from progressive they come with pvc spacer,I put them on my suzuki 1500 and the front rides better.


Plastic is fantastic but steel is real.

Phelonius[/quote]
 It takes longer for plastic to rust[/quote]

How can it rust when bathed in oil?
Do you not run oil in your forks?

Phelonius

Title: Re: Sagging fork springs fix
Post by mikestrikes on 05/23/09 at 12:42:39


5E666B626160677B7D0E0 wrote:
[quote author=202B2E2E7475420 link=1241714473/0#10 date=1242758383][quote author=7D454841424344585E2D0 link=1241714473/0#8 date=1242750985][quote author=555E5B5B0100370 link=1241714473/0#6 date=1241736036]When you get fork springs from progressive they come with pvc spacer,I put them on my suzuki 1500 and the front rides better.


Plastic is fantastic but steel is real.

Phelonius[/quote]
 It takes longer for plastic to rust[/quote]

How can it rust when bathed in oil?
Do you not run oil in your forks?

Phelonius[/quote]

But you dont "FILL" the forks full of oil, and you would need to hit alot of hard bumps to keep the top slashed with oil, it does get oil but not if its sitting or just tooling around town.
PVC spacers in forks are not subjected to much heat, no UV light and if you use the right thickness wont have any prob holding up to the little Savage...
PVC to me is easy to cut, lay a bit of sandpaper on a flat surface and twist, it will even out and make them flat, a little unlevel is ok as the spring will flex to it, just get the even.

Title: Re: Sagging fork springs fix
Post by Digger on 06/19/09 at 21:24:49

PVC should not be a problem.

Progressive supplied PVC spacers when I bought some fork springs for my Yamaha YZ250 motocross bike from them.

The spacers handled the motocross thrashing just fine.

Title: Re: Sagging fork springs fix
Post by Digger on 06/19/09 at 21:29:47

Here's another trick to ease the task of replacing the fork caps against spring pressure.  You must first "clock" them:

Before inserting the fork springs, place each fork cap in place and turn until the threads just start to "catch."  Place marks on the cap and the top of the fork tube so that you can replicate this position.

After the fork springs are in, position the fork cap so that the marks you made earlier are lined up.  Press the fork cap down and start twisting.  The threads should "catch" immediately and you will not damage them.

Title: Re: Sagging fork springs fix
Post by LANCER on 06/20/09 at 04:11:18


674A44444651230 wrote:
Here's another trick to ease the task of replacing the fork caps against spring pressure.  You must first "clock" them:

Before inserting the fork springs, place each fork cap in place and turn until the threads just start to "catch."  Place marks on the cap and the top of the fork tube so that you can replicate this position.

After the fork springs are in, position the fork cap so that the marks you made earlier are lined up.  Press the fork cap down and start twisting.  The threads should "catch" immediately and you will not damage them.



I always wondered if the shuttle uses Progressive shocks and springs ?  8-)

Title: Re: Sagging fork springs fix
Post by LANCER on 07/08/09 at 19:07:42

since I have a parts bike at the house with stock forks on it, this seems like a good time to check to see if a set of Progressive springs for a sporty will work in them.  that would be fun and a fairly cheap way to RENEW by replacing the sagging springs
keep your fingers crossed that they will fit.

Title: Re: Sagging fork springs fix
Post by Digger on 07/08/09 at 20:54:15


7C717E7375622227100 wrote:
[quote author=674A44444651230 link=1241714473/0#14 date=1245472187]Here's another trick to ease the task of replacing the fork caps against spring pressure.  You must first "clock" them:

Before inserting the fork springs, place each fork cap in place and turn until the threads just start to "catch."  Place marks on the cap and the top of the fork tube so that you can replicate this position.

After the fork springs are in, position the fork cap so that the marks you made earlier are lined up.  Press the fork cap down and start twisting.  The threads should "catch" immediately and you will not damage them.



I always wondered if the shuttle uses Progressive shocks and springs ?  8-)[/quote]

Nope - that would make too much sense!   ;)

Title: Re: Sagging fork springs fix
Post by LANCER on 07/12/09 at 04:45:17


664B45454750220 wrote:
[quote author=7C717E7375622227100 link=1241714473/15#15 date=1245496278][quote author=674A44444651230 link=1241714473/0#14 date=1245472187]Here's another trick to ease the task of replacing the fork caps against spring pressure.  You must first "clock" them:

Before inserting the fork springs, place each fork cap in place and turn until the threads just start to "catch."  Place marks on the cap and the top of the fork tube so that you can replicate this position.

After the fork springs are in, position the fork cap so that the marks you made earlier are lined up.  Press the fork cap down and start twisting.  The threads should "catch" immediately and you will not damage them.



I always wondered if the shuttle uses Progressive shocks and springs ?  8-)[/quote]

Nope - that would make too much sense!   ;)[/quote]

Ahhh,  so it is the stock SKUNK WORKS project parts program OEM leftovers eh ?   ;D

SuzukiSavage.com » Powered by YaBB 2.2!
YaBB © 2000-2007. All Rights Reserved.