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H Shock action

Posted: 11:14 am May 04 2012
by gsa102
Has anybody big like me come upon a shock clicker settings that they like for the H model? I weigh about 230, and have been experimenting with different settings, but can't seem to get it smoothed out. I have been using the Fredette settings, but I am trying to get even better. Spring rate is good. I know I should get it serviced and maybe tuned a little. I don't know if it has ever been opened up for even an oil change.

Re: H Shock action

Posted: 05:01 pm May 04 2012
by Varmint
I think the spring on the KDX is designed for 160 lbs rider. You might want to start there first.

H Shock action

Posted: 09:21 pm May 04 2012
by KDXGarage
What rate shock spring and fork springs are you running?

H Shock action

Posted: 08:22 am May 07 2012
by gsa102
I am running a Ti 5.5 on the rear, and have DRZ forks with their stock springs, I think a .46. The springs are not an issue, just struggling to dial in the clickers on the shock. It hits really hard on square edge bumps. Maybe I have it set too soft.

H Shock action

Posted: 09:44 pm May 07 2012
by KDXGarage
What are your clicker settings now?

How many hours are on the oil / last service?

You are 230, or 230 in full riding gear? .46 and 5.5 sounds a little off balance.

H Shock action

Posted: 07:24 am May 08 2012
by gsa102
I started with the Fredette settings and have been working from there. I was at R 12 out, and C 12 out. The rear was hitting hard over roots still, and was rebounding too fast and kicking up at speed.

I am at R 11 out and C 14 out now. I weigh 230 without gear. FRP recommends .42 front and 5.4 rear for my weight. I have .44 in the front and 5.5 in the back. I tried a used 5.2 before, but it was tired and wasn't much better than stock.

Probably new seat foam would help with the sharp jolts, too. I am just looking to smooth the bike out some so my 43 YO back doesn't hurt so much after a long ride.

I don't know if the shock was ever serviced. I should pop for that but don't have the extra cash now. The wife wants a $150 tree for mothers day, and I need a tire before the next race on the 20th.

H Shock action

Posted: 09:05 pm May 08 2012
by KDXGarage
Race Tech shows .48 for your weight without gear. I doubt .44 is correct, much less .42. Years ago, FRP's recommendations were based on the stock amount of preload, which I feel is way too much.

if the oil is as old as it sounds, then you probably should get it changed. (after the tree and tire) :grin:

Watery, stinky, extremely old shock oil won't dampen properly, so forget about worrying too much with the clickers until you get some fresh oil for them to work on.

H Shock action

Posted: 08:11 am May 09 2012
by gsa102
I didn't do very good for her birthday, so I will get the "weeping cherry" tree she has always wanted, and watch her kill it with our salt-softened water. :whistle:

Thanks for the help, and I will get it serviced, at least.

I would love it if we could find a newer, better, shock model to fit in the KDX. I have become a showa fan since getting my DRZ forks.

H Shock action

Posted: 09:22 am May 09 2012
by scheckaet
didn't read the whole tread, but I can tell you the rear shock works very well if you have the correct spring even with stock valving.
I had mine revalved by FRP soon after and it was even better. There is no need to find a replacement IMO...

H Shock action

Posted: 09:33 am May 09 2012
by KDXGarage
You could have your current shock revalved. Unlike forks, the shocks are not leaps and bounds better than they used to be.

Re: H Shock action

Posted: 11:36 am May 07 2013
by gsa102
I missed a year because I had Knee surgery. I practiced with and raced the bike Sunday, and the shock is still terrible. I am going to take it apart myself and change the oil, and see if anything else is wrong with it.

After riding my WR (revalved and far newer oil) for a couple days, then getting on the KDX, I couldn't believe how bad it was. If I had seen how wide open the track was, I would have taken the other bike.

Re: H Shock action

Posted: 01:11 pm May 07 2013
by Slick_Nick
Fresh oil and nitrogen will do wonders

Re: H Shock action

Posted: 02:58 pm May 07 2013
by KDXGarage
I have a KDX shock rebuild kit for sale, if you are interested.

http://kdxrider.net/forums/viewtopic.php?f=69&t=13857

Image

Re: H Shock action

Posted: 11:48 am May 16 2013
by gsa102
I may have to get one of those kits. I saw the picture and thought i was looking at a Whibby post for a second. :razz:

Re: H Shock action

Posted: 11:35 am May 24 2013
by gsa102
SO... I changed the oil and tweaked the valving on my H shock, finished up bench bleeding and.... broke the bleeder screw off when I went to tighten it up :doh:

At least I can get one from Kawi. I am dying to go for a ride.

Re: H Shock action

Posted: 08:24 am May 28 2013
by gsa102
I did some research, and it appears visually that about 1995 through 2003 KX 125/250 shocks will fit the KDX. 99 through 01 have a high speed compression adjustment. I looked at part numbers and can't verify that way. I have my eye on a 99 shock on ebay and may snap it up, depending on how my stocker works after the oil change. I should be able to get to the shop and do the nitrogen charge today, but it's raining.

H Shock action

Posted: 09:51 am May 28 2013
by KDXGarage
You may want to check the overall length of the "other" shocks before buying. I think you are about to open a can of worms. Spring outer diameter, clevis width, reservoir placement, etc. are all things to worry about.

H Shock action

Posted: 05:13 pm May 28 2013
by rbates9
Someone on here did put in a KX shock and I think he said it worked ok. I think he said the length was about an inch longer.

Re: H Shock action

Posted: 05:37 pm May 28 2013
by KDXGarage
Wow! I would like to see some pictures of the super jacked up KDX. :mrgreen:

H Shock action

Posted: 06:19 pm May 28 2013
by rbates9
It was CoronasAndChips that put in a 97 KX250 shock. Maybe he can chime in with how it worked out for him.