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Discussion Starter · #1 ·
First of all, sorry if the question is too basic, but I'm just starting on it. I have my KRX for about 3 months and my back suspension sagged about 1 1/2". I read the manual and saw that the adjustment measuring from bottom to the top of the spring should be between 28.96 and 29.09 in. I lifted my back tire from the floor and measured the spring length from bottom to top and it is at 24 in. How can that be possible? Should I move it up almost 5 in?
Any help will be greatly appreciated.

718
719
 

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Front Shock Absorber Spring Preload Adjustment
  • Remove:
    Front Shock Absorber (see Front Shock Absorber Re- moval(14-9))
  • Loosen the locknut [A].
  • To adjust the spring preload, turn the adjusting nut to
    the desired position.
    Special Tool - Hook Wrench T=3.2 R37: 57001-1539
    Setting Length [C] (Installed Spring Length)
    Front Spring Preload Setting
    Standard: 578.6 mm (22.78 in.)
    Adjustable Range: 568.1 - 582.1 mm (22.37 - 22.92 in.)
    • Tighten the locknut.
    *If the spring action feels too soft or too stiff, adjust it.

Seated position ,
adjuster turned fu11y cIockwise.
I N040848S1 C
Spring Preload Adjustment
Adjusting Length
582.1 mm (22.92 in.)
Spring Force
Speed Light Good Low
Setting Weak Soft
Load Road
iiiiii
!!!!!!
568.1 mm (22.37 in.)
Strong Hard Heavy Bad High
(Clockwise )
723

Shock Absorbers
Front Shock Absorber Crossover Ring Position Adjustment
  • Remove:
    Front Shock Absorber (see Front Shock Absorber Re-
    moval(14-9))
  • Loosen the crossover ring [A] and locknut.
    Special Tool - Hook Wrench T=3.2 R37: 57001-1539 Setting Distance (Upper Spring Top End - Crossover
    Ring Bottom End)
    Front Crossover Ring Setting Standard: 74.4 mm (2.93 in.)
    • Tighten the crossover ring and locknut. • Install the removed parts.
    Front Shock Absorber Removal
    • Support the vehicle on a stand so that the front wheels are off the ground.
    • Remove:
      Front Wheel (see Wheel Removal(11-8))
      Front Access Cover (see Front Access Cover Re- moval(16-40))
    • Remove the lower and upper front shock absorber bolts [A] and nuts.
    • Remove the front shock absorber .
      Front Shock Absorber Installation

    [*]Replace the front shock absorber mounting nuts with new ones.
    [*]Install:
    Front Shock Absorber [A]
    Front Shock Absorber Bolts and Nuts
    • Tighten:
    Torque - Shock Absorber Bolts: 95.5 N·m (9.74 kgf·m, 70.4
    ft-lb)
    • Install the removed parts.

SUSPENSION 14-9
724

14-10 SUSPENSION Shock Absorbers
Rear Shock Absorber Compression Damping Force Adjustment
• To adjust the compression damping force, turn the com-
pression damping force adjuster [A] to the desired posi-
tion.
OThe standard adjuster setting is the 17 - 19 clicks from
the fully seated (turned fully clockwise) position.
Compression Damping Force Adjustment
Adjuster Position*
24 clicks
Damping Force
Setting Load Road Speed Weak Soft Light Good Low
(Counterclockwise) Softer-----------Harder
STD
2J10 0
1..1 II I IIIIII1..1
Seated position,
adjuster turned fully clockwise.
IN04078BS1 S
iiiiii llllll
0 Strong Hard Heavy Bad High
*:Turnout from the fully seated (turned fully clockwise) position.
NOTICE
Do not force to turn the compression damping force adjuster from the fully seated position or the adjust- ing mechanism may be damaged.
Rear Shock Absorber Spring Preload Adjustment
  • Remove:
    Rear Shock Absorber (see Rear Shock Absorber Re- moval(14-11))
  • Loosen the locknut [A].
  • To adjust the spring preload, turn the adjusting nut to
    the desired position.
    Special Tool - Hook Wrench T=3.2 R37: 57001-1539
    Setting Length [C] {Installed Spring Length) Rear Spring Preload Setting
    Standard: 735.5 mm (28.96 in.)
    Adjustable Range: 725.0 - 739.0 mm (28.54 - 29.09 in.)
    • Tighten the locknut.
    *If the spring action feels too soft or too stiff, adjust it.
    Spring Preload Adjustment
    Adjusting Length
    739.0 mm (29.09 in.)

IN04076B G
Spring Force
Setting Weak Soft
Speed Light Good Low
iiiiii
llllll
725.0 mm (28.54 in.)
Strong Hard Heavy Bad High
Load Road
(Clockwise)
725

Shock Absorbers
 

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here is not the best copy of the shock section in the manual that gives you the idea of where to measure from and what the stock specs are.. start with tires aired the same on level ground and roll your Car back and fourth so it settles level.. take the measurement while on the ground all of them and write it down.. raising your car takes the tension off the springs to make adjustments easier but all measurements must start on the ground.. most guys on here have posted as well as myself that there near the end being able to adjust anymore to still have the crossovers work with out spring lock and can't get near 12" of ground clearance.. So I gave in and just ordered up a new set of springs from Shock Therapy.. If you do a search there are a few postings on the subject.. hope this helps
 

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Discussion Starter · #4 ·
Thank you. I looked at the manual and my rear shocks wee at 24 in. I tied a little more, but only got to 13" clearance. I'll probably need to work on new springs too.
 

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Thank you. I looked at the manual and my rear shocks wee at 24 in. I tied a little more, but only got to 13" clearance. I'll probably need to work on new springs too.
If you are measuring the rear shock per the Manual I just sent than 24" is simply not possible.. the max spring pack measurement is 28.5" this spec is given to avoid spring lock... if you have some how ran the adjuster down an additional 4" beyond this .. you may cause some damage to some suspension attachment points.. Adjust the shock springs to the given measurement spec's if you do not get the right ground clearance... then get rid of the over load if that is not the problem then new springs maybe needed...
 

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here is not the best copy of the shock section in the manual that gives you the idea of where to measure from and what the stock specs are.. start with tires aired the same on level ground and roll your Car back and fourth so it settles level.. take the measurement while on the ground all of them and write it down.. raising your car takes the tension off the springs to make adjustments easier but all measurements must start on the ground.. most guys on here have posted as well as myself that there near the end being able to adjust anymore to still have the crossovers work with out spring lock and can't get near 12" of ground clearance.. So I gave in and just ordered up a new set of springs from Shock Therapy.. If you do a search there are a few postings on the subject.. hope this helps
How do you like the Shock Therapy springs? Did you get their crossover rings also? My front springs are noisey, not talking about hitting the crossover rings, just a spring noise if you rock it back and forth. I hear the same on the new one on the showroom floor, but my buddies does not do it. Did your have this noise and do the ST springs make the noise?
 

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I'm waiting for shock therapy spring kit to arrive should be here in a few days.. I also ordered there crossovers that have an o ring in them to stop the slapping sound some hear..
 

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2020 KRX 1000 "Green Goblin"
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Just my opinion but the way the manual says to measure for shock adjustment seems confusing and makes a simple job a pita. Ride height should be set by measuring from lowest point on front and rear of skid plate to the ground. I run 14.5" in front 14" in rear. I set my crossovers by measuring the gaps in the top/small spring, add them together, subtract 1/8" and set crossovers to that measurement by measuring from bottom of crossover to top of spring spacer. I have seen many KRXs on the trail and not one has has the crossovers set correctly from dealer. They only use about 40% of the top spring. Just my 2 cents.
 

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Just my opinion but the way the manual says to measure for shock adjustment seems confusing and makes a simple job a pita. Ride height should be set by measuring from lowest point on front and rear of skid plate to the ground. I run 14.5" in front 14" in rear. I set my crossovers by measuring the gaps in the top/small spring, add them together, subtract 1/8" and set crossovers to that measurement by measuring from bottom of crossover to top of spring spacer. I have seen many KRXs on the trail and not one has has the crossovers set correctly from dealer. They only use about 40% of the top spring. Just my 2 cents.
Agree one would think the top spring would be of the right spring psi and size to utilize all of the travel.. I found out one of the reasons to adjust this out is to eliminate excessive body roll.. by using the factory measuring technique gives a base line starting point to which one can make measurable change.
 

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The major hurdle on the KX is the shock valving. The shocks themselves are fine!! It’s all about the internal set up and spring quality and rates used.
The car in stock form is harsh compared to how it can really be. It used a super narrow spectrum of progression. A wider spectrum of soft to form is what this car needs.

A revalve and spring package from someone who knows what they are doing is about 1900 to 2k. Half of this Cost is the springs. But the springs by themselves rate at only about 20 to 30 percent of the overall improvement. The overall improvement level will come from a good revalve. Importantly!!! If an owner wants to do this in stages?? Then someone’s spring kit, rate and length choices May or may not coincide with the choices needed with a revalve later? Some of the “spring kits” Are ment to bandage the “stock” valved shocks. Once the option to revalve is used, the stock band-Aid spring rate choices won’t match up for optimum plushness and performance in control.
So, Spring rate and length choices Should be made to match up to the revalve later if this is the plan?
 

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yup, spring rate and valving should be done as a package..........the total tune, not just springs added is a bandaid.
 

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And to add,
I’m just trying to help you KRX owners to get the most out of your car. Because I have many decades of experience doing it.
for starters, throw that suspension section of the manual in the trash! It’s NOT going to help you to improve your ride quality. Those are just standard generic baseline settings.

The car should be set up for the Individual and his weights, his cargo, and accesiries, and his driving style, and level, and the terrain that he or she drives in.
it is NOT, one size fits all.

does the driver weight 340lbs? Or 176lbs??
What about the passenger?? Often? Never?
What type and size tires? Spare tire? 6 beer or 60 beer cooler?? Winch?
Ride height depends on all this and is never the same. Firmer settings for fast on hard pack, softer settings and plush for slower and medium speed super rough.
If the driver is NEVER bottomIng out the car? Then the car is set up over firm!! They are not using ALL that Good suspension. They can lower the car, or move the crossovers upwards to spring soften the car even more as well as run the dials in softer positions.
don’t worry about whatthe generic manual says!! Set it what best works for the owner driver. If the owner is going to self set up the car, then do What feels the best?? What gives the best confidence in car control? These will be the best personal settings.
Most owner/drivers don’t know what they don’t know! This means if they have never driven, or experienced that car or other cars set up to a optimum Level? Then they don’t know what that potential really is?
So, on the stock level, Adjust the car to what works best and feels best to yourselves. Experiment And drive.

I know it’s sucks to have to spend extra cash on the car. But the KRX has way way more room in it to be plush and fast over and way more control at all speeds through rough And flat terrains. But till the Driver/owner experiences it? They will never know.
 
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