22009 MX Zx 600 RS Key Features and Improvements PowertrainRotax® 600RS engineNEW dual air intake systemNEW tuned pipe supportRuns on 98E octane fuel
32009 MX Zx 600 RS Key Features and Improvements Suspension – NEW Calibration Front and RearSC-5 rear suspensionNEW rear arm geometry and shock linkageNEW, STRONGER rail design: better cornering and brakingNEW stronger coupling system on slide rail4 rear idler wheels
42009 MX Zx 600 RS Key Features and Improvements Suspension – NEW Calibration Front and RearDual A-arm front suspension – NEW geometry for sharper corneringWider ski stanceNEW steering ratioNEW ski spindleNEW A-armsAdjustable width, adjustable casterALL-NEW C-40 Racing Clicker shocks16mm shock shaftsPiggyback design on all four shocks for better oil flow, higher capacityExternal high/low speed compression adjustmentsExternal Rebound adjustability on front shocks4
52009 MX Zx 600 RS Key Features and Improvements ChassisNEW Reinforced castings throughoutNEW Stronger engine supportsNEW Wider, stronger running boardsNEW rolled edge extrusionNEW integrated footrestNEW toe holdNEW seat shape and height for easier transitioningExhaust deflector20L fuel tank standard; 40L available for cross-country racingMulti-function gauge package with EGT record mode
62009 MX Zx 600 RS Key Features and Improvements DrivelineNEW track; designed for improved durability, better cornering and holeshotsNEW Brembo‡ brake caliper: stronger casting and better resistance to heat transfer through pistonNEW primary and secondary clutch calibrations: stronger holeshotsTEAM‡ roller secondary: floating design on jackshaftBRP-design slip gear: better snap ring retentionStronger drive axle: better welding processStronger jackshaft: better welding process
14Tools Required 10mm open end wrench Phillips Screwdriver Small mirror Small FlashlightSupply Harness – Part # (7-19)12v Cable Supply – Part # (7-20)12 volt battery
15Carburetor Synchronization Remove the airbox.Place a mirror so you can see both carb slides.Check the throttle cable tension at the throttle lever (slack should be at a minimum).Press the throttle lever to WOT.Look at the carb slides to see if they are equal in height and clear the bore of the carbs. Adjust the throttle cables if they do not.Check the throttle cable tension again at idle position (minimum slack).Slowly open the throttle and watch to see if both carb slides rise at the same time.
16Carburetor Synchronization Adjust the idle screw so both carb slides open at the same time.Again, check the throttle cable slack at the idle position. Must be minimum slack in the cable.Tighten the cable jam nuts and recheck the carb slide operation.Re-install the airbox.Your carb slides are now synchronized
17TPS AdjustmentUsing the electrical supply harnesses and the 12v battery, connect to the diagnostic port on the vehicle.The instrument cluster will light up.After the “wake-up” of the dashboard, push and hold the throttle lever to W.O.T. position.Press on the “Holeshot” button, hold it for 5 sec.
18TPS AdjustmentThe check engine light will appear when the TPS adjustment is complete.Release the throttle lever and the “Holeshot” button.Disconnect the battery and the supply harness.Put back the diagnostic port in its connector on the vehicle.18
19TPS location, diagnostic connector, harness and battery
21Understanding basics, crucial for tuning ClutchingUnderstanding basics, crucial for tuningDriver input-Data acquisition very importantKnow and tune to peak TORQUE RPM and peak HP RPMTesting - learn what changes to make for track, conditions, temperature, elevation, air densityKnowledge of these factors and cumulative efforts on your part will make the winning difference
28RampThe profile of the ramp controls the axial or shift force generated to the drive beltIt is the angle of the ramp at the point of roller contact that determines the shift forceBRP has a wide variety of ramp profiles available
36Calibration Screws(Clickers) BRP only manufacture to offer quick external shift RPM adjustmentCam adjuster allows you to raise or lower ramp, changing profileClicking up to higher # will slow upshift and raise RPMClicking down to a lower # will upshift faster and lower RPM
552009 600RS Suspension What's New C40 Piggy Back “Clicker” ShocksBigger tie rodsStronger spindlesWider front end (new arms)Revised and optimized geometriesNew SC-5 rail stronger designNew rear arm (motion ratio)New stronger coupling systemNew suspension calibration
56REV-XP Front Suspension 10”+ of travelUnequal length Unparallel A armsLightweight Heat treated alloy armsWider front-end (adjustable)Adjustable CasterReduced steering effort
57C40 “Clicker” Shocks Low & High speed compression adjusters 40mm KYB HPG aluminum T/ARebound adjuster on ski shocksHigh capacityFade free
58TipsFor sno-X application install front shock piggy back toward the frame. The remote reservoir must face forward of the vehicle. If not installed properly interference may occur and major damage is possible.
59Adjustable WidthWe strongly recommend to use a wider ski stance for Sno-X application.
60Adjustable CasterAdding caster will increase steering effort and vehicle stability.Reducing caster will decrease steering effort and vehicle stability.After a caster adjustment, realignment of skis will need to be done.Ref pg 117
61Measuring Toe In/OutRaise the front of the sled until the skis are off the ground.Measure from carbide to carbide at the front and repeat at the rear.Adjust BOTH tie rods until you achieve 1/8” toe out. (A 1/8” longer than B)
62SC-5 Rear Suspension Specifically designed for the XP chassis 40mm KYB HPG aluminum T/A AdjustableNew rear shock motion ratioLight weight rear torsion springsLight weight heat treated chromoly armsAircraft aluminum suspension rails4 position coupling blocks5 position rear torsion spring adjustment
635 positions rear torsion spring adjuster Adjustments5 positions rear torsion spring adjuster4 position rear coupling block
64TipsOn hard icy tracks, wheels may be used. Install them on the outside part of the rail.When installing the rear torsion springs, place the holding block in the UP position.
65Damper Adjusters & Service Low speed clicker adjustments are for slow shaft speed (Jump ramp, cornering, acceleration and braking). It controls the transitions.High speed clicker adjustments are for fast shaft speed. Fast straightaway with ripples, landing on flat, square edges). Do not adjust at more than 2 turns open.Rebound adjuster (ski shock only) control shaft speed during extension. Faster the rebound, plusher the ride but more body roll.Change shock oil after approx 10 hours of riding. 5 weight BRP #
66Base Suspension Set-Up Be systematic and do 1 change at a timeUse 1/4” to 1/2” of spring preload on fronts and center shocksUse rear torsion springs at position #2 (150lbs riders) #4 (170lbs+ riders)Adjust all clickers at 1 turn open (4clicks LS, 4 clicks rebound)Use coupling blocks at position #1Adjust toe at 1/8” openAdjust track tension
67Suspension Troubleshoot Too much body rollAdjust vehicle width at the maximumIncrease spring preload or rateIncrease low speed adjustmentDarting on jump faceAlignment needs to be revisedCaster may be increasedSuspension is too harsh:Reduce high speed dampening adjusterOpen rebound speed adjustment(Front shock only)Reduce spring rate (for lighter or slower riders)
68Suspension Troubleshoot Front end wheelieIncrease rear shock low speed adjusterIncrease rear torsion spring preload or rateShorten limiter straps and readjust center shock preloadCoupling system may be used at this time (position 2-4)Back end “fish tail”Rear suspension front arm may bottom out or is too stiff.If bottom outIncrease spring preload or rateIncrease low & high speed dampeningIf too stiffReduce spring preload or rateReduce low & high speed dampening
69Suspension Troubleshoot Suspension is too stiff even with optional softer springs and adjusters at 2 turns open.Shocks need to be serviced to the optional softer valving.Suspension bottom on jump face.Isolate the problematic shock (ski, center or rear)Increase low speed dampening of itIncrease spring preload or rate of itShocks need to be serviced to the optional stiffer valving at this time
71Shock basic understanding VALVING AND DAMPENINGIn the HPG shock, the piston passages are covered by a stack of thin metal shims of various thicknesses and diameters. The shims provide dampening by acting as spring loaded valves offering resistance to the oil traveling through the piston.NOTE: For the new 2009 C-40 shocks, always use 34 mm diameter shims against the piston for compression dampening and 30 mm diameter shims against the piston for rebound dampening.Please refer to your racing handbook pages for more information.71
72Shock basic understanding The diameter of the smaller shims that support the large shims will also affect the dampening. A larger support shim gives more support to the large shim thus making it act stiffer.72
73Shock basic understanding Another method of changing dampening is by controlling the amount of space the stack has to open. This is done by reducing the amount of smaller shims which support the larger shims. The larger shims act the same until they bottom out against the valve stopper.73
74Shock clickers Low Speed Compression Adjuster The low speed adjustment is used to change the dampening force for relatively slow suspension movement. It is used to tune the vehicle for braking, cornering, holeshots and all the bumps that create low speed movement in the suspension. The low speed adjuster has 4 turns of adjustment. Turning the adjuster clockwise increases the dampening.High Speed Compression AdjusterThe high speed adjustment is used to change the dampening force for fast suspension. It is used to tune the vehicle for large, high speed jumps and bumps that create high speed movement in the suspension. The high speed adjuster has three turns of adjustment. Turning the adjuster clockwise increases the dampening.74
75SHOCK REBUILD PROCEDURE 1. Tightly secure the shock base in vise. DO NOTCLAMP ONTO SHOCK BODY.2. Using a 12mm wrench, slowly remove air inletvalve, allowing the gas inside the reservoir toescape.3. Remove top shock cover using a 36 mmwrench. Pull shock rod out of main shockbody.4. Dispose of used oil properly.5. Push down the remote reservoir cover to removethe retaining circlip.75
76SHOCK REBUILD PROCEDURE 6. Remove the remote reservoir cover.7. Remove the floating piston inside the remote reservoir.8. Remove lock nut using a 19 mm wrench securing valve stack and piston to rod.9. Carefully remove and layout shims, washers and piston from rod. Play close attention to shims and washers sequence and piston position.10. Clean all shock components using pulley flange cleaner (P/N ). DO NOT MIX SHIMS AND WASHERS TOGETHER.11. Assemble valve shims, washers and piston in proper order and place them back onto shock rod.12. Torque the rod nut at 45 N•m (33 lbf•ft).76
77SHOCK REBUILD PROCEDURE 13. Fill main shock body with shock oil (P/N ) to a level of half full.14. Fill remote reservoir with shock oil to within 6.4 mm (1/4 in) from the top.15. Hold the remote reservoir in a way so the oil level in it at the same height of the level in the shock.16. Cup your hand and place it over the remote reservoir. Pump with your hand to circulate oil through the base valve (adjustment system) to remove any trapped air. Low speed adjuster must be open 1 turn minimum.17. Fill the remote reservoir with oil. Lubricate O-ring seal on floating piston with shock oil and install. The key to good shock performance is to remove all the air from shock body reservoir and valve stack.77
78SHOCK REBUILD PROCEDURE 18. Push the floating piston to the bottom of the remote reservoir. Oil will rise in the main shock body almost to the top.19. Fill the shock body with oil until level with bottom of threads.20. Lubricate seal around piston and valve stack and gently push into main shock body.21. Stroke the piston and valve stack slowly to remove any trapped air. Using a small hammer or wrench, gently tap on the rodmounting eyelet to help remove air.22. Again, push the floating piston to the bottom of the remote reservoir.78
79SHOCK REBUILD PROCEDURE 23. Pull the shock shaft as far out as possible and replace the seal cover and torque to 65 N•m (48 lbf•ft). Oil must spill from the shock body before the seal cover O-ring seals the shock.24. Install the remote reservoir cover. Install the retaining clip. Pull cover to seat against the retaining clip. Make sure the cover is firmly seated against the retaining clip before filling with gas.25. Install the air inlet valve.26. Pressurize the shock at 2070 kPa (300 PSI) with nitrogen (N). Use the correct gas fill tool kit (P/N ).79