YETI SNOWMX SUSPENSION

SUSPENSION

SLR SUSPENSION FRONT ARM ASSEMBLY
SLR SUSPENSION REAR ARM ASSEMBLY
SLR SUSPENSION AXLE ASSEMBLY
SLR SUSPENSION RAIL ASSEMBLY

 

Each YETI SNOWMX model comes equipped with the “Reactor” rear suspension custom designed  for SNOWMX riding by NEXTECH, a leader in lightweight composite snowmobile rear suspensions. Utilizing a titanium front suspension arm, Fox Float 3 shocks (2016 YETI models), all titanium fasteners, injection molded rear reactor arms , 7075 anodized billet shock shafts and upper cross shafts (2016 YETI models), the Reactor soaks up everything you can throw at it through it’s 9” of rear suspension travel and 6” of front arm travel(2016 YETI models).

Some riders focus on a conversion kit with maximum suspension travel, but we at YETI SNOWMX are concerned first with overall performance, agility, balance, lightweight feel and efficiency of the drives before weighing in on total suspension travel.  We learned that removing 30+ pounds of un-sprung weight from the rear assembly of the YETI, significantly reduces the demand on the rear suspension.

YETI SNOWMX handles on the trail like an mx bike, lean back on the big whoops and grab throttle, get on top and stay there easily, chop it for the corner, back it in the corner and grab the gas again, hold 4th or 5th gear through the corners like you would on a whooped out sand track, but it is easier. You’ll have confidence like never before, the YETI makes you faster.

Go with the RRS suspension by Raptor (optional in Canada, standard on all USA YETI’s) if you want the ultimate in long travel with it’s 21” of total travel on the YETI 129 SNOWMX.  Soak up the whoops on the trail with ease, then once you get to the top, flip the POW lever on the shock, to slow down the extra travel to help you climb in the deep powder for the ultimate of both worlds, trail and powder control.

Finally, if you are into dropping big bombs, our test rider Cory Derpak, was pulling 60’ drops up in Alaska in the spring of 2014. The combination of the rear suspension and the strength of the carbon chassis, absorbs the biggest hits you could ever imagine with ease. The YETI’s natural habitat is the mountains; it is not easily intimidated.

SLR SUSPENSION FRONT ARM ASSEMBLY REF: YASU1805

SLR SUSPENSION COMPONENTS

1 YPSU1368 FRONT ARM TITANIUM WELDED GR 9 1

2 YPSU1375 UPPER FRONT ARM RUB PROTECTOR GF NYLON 2

3 YPSU1372 FRONT ARM ALUMINUM UPPER SHAFT 1

4 YPSU1369 FRONT ARM UPPER NYLON BUSHING 2

5 YPSU1396 SL2 CROSS SHAFT FIBER PA RETAINER FOR 314 O RING 4

6 YPHW1003 BOLT, M8-1.25 X 16mm, FLANGE HEAD 12mm HEX DRIVE, Ti 6

7 YPSU1395 THIS SHAFT IS REPLACED BY PART NUMBER YPSU1861 1

8 YPSU1875 ALUMINUM CROSS TIES 1

9 YPSU1407 LIMITER STRAP 1

10 YPSU1397 STAINLESS WIRE SNAP RING 1000-75 4

11 YPSU1414 SHOCK, FRONT SKID FLOAT 3, SOFT 951-99-122 1

12 YPSU1371 PIN, FRONT ARM LOWER, 7075 HARD ANODIZED 2

13 YPHW1377 NUT, M8-1.25, NYLOCK, TI 3

14 YPSU1385 ORING, UPPER SHAFT OUTER & MID SEAL 2

15 YPHW1376 BOLT, M8-1.25 X 43mm, FLANGE HEAD 12mm HEX DRIVE, Ti 3

OPTION

11 YACU2065 SHOCK, RAPTOR WITH COMP CLICKER, FRONT SKID,

UPGRADE 1

NOTE

NOTES:

1. THE ORIGINAL 2016 YETI ALUMINUM BLACK ANODIZED LOWER SHOCK

SHAFTS HAVE BEEN UPGRADED TO A STRONGER TITANIUM UPGRADE KIT PART

NUMBER YACU2062. SEE DRAWING YPCU2062 FOR MOR DETAILS.

2. 2016 YETI LIMITER STRAP LENGTH SHOULD BE 8.75" CENTER TO CENTER. SEE

YETI TECH TIPS AND YOUTUBE CHANNEL FOR PROPER SET UP AND ADJUSTMENT.

IMPROPER LIMITER STRAP LENGTH WILL DRASTICALLY EFFECT HANDLING.


SLR SUSPENSION, REAR ARM ASSEMBLY REF:YASU1637

SLR SUSPENSION COMPONENTS

1 YPSU1388 REACTOR BAR 2

2 YPSU1379 THIS SHAFT IS REPLACED BY PART NUMBER YACU2064 1

3 YPSU1381 SPACER, REAR UPPER SHAFT INNER, PLASTIC 2

4 YPSU1382 SPACER, REAR UPPER SHAFT MIDDLE, PLASTIC 2

5 YPSU1387 BUSHING, UPPER SHAFT REACTOR, NYLON 4

6 YPSU1383 SPACER, REAR UPPER SHAFT OUTER, PLASTIC 2

7 YPSU1385 ORING, UPPER SHAFT OUTER & MID SEAL 6

8 YPSU1417 SHOCK, REAR SKID FLOAT 3 EVOL, SOFT, 952-99-126 1

9 YPSU1395 THIS SHAFT IS REPLACED BY PART NUMBER YPSU1861 1

10 YPHW1003 BOLT, M8-1.25 X 16mm, FLANGE HEAD 12mm HEX DRIVE, Ti 4

11 YPSU1397 STAINLESS WIRE SNAP RING 1000-75 2

12 YPSU1396 SL2 CROSS SHAFT FIBER PA RETAINER FOR 314 O RING 2

13 YPSU1217 WHEEL, 3.35" OD, 20MM ID BEARING 2

14 YPSU1384 ORING, UPPER SHAFT INNER SEAL 2

OPTION

8 YACU2066 SHOCK, RAPTOR MONO, REAR SKID, UPGRADE 1

8 YACU2065 SHOCK, RAPTOR WITH COMP CLICKER, REAR SKID, UPGRADE 1

NOTES

1. THE ORIGINAL 2016 YETI ALUMINUM BLACK ANODIZED LOWER SHOCK

SHAFTS HAVE BEEN UPGRADED TO A STRONGER TITANIUM UPGRADE KIT PART

NUMBER YACU2062. SEE DRAWING YPCU2062 FOR MOR DETAILS.


SLR SUSPENSION, 129 INCH RAIL, LH, RH REF:YASU1638

SLR SUSPENSION, 129 INCH RAIL COMPONENTS

1 YPSU1268 RAIL, 129" ALUMINUM, 1.0 1

2 YPSU1258 PLATE, RAIL, REAR AXLE OUTER 1

3 YPSU1247 MOUNT, RAIL, FRONT ARM OUTER 1

4 YPSU1246 MOUNT, RAIL, FRONT ARM INNER 1

5 YPSU1370 FRONT ARM LOWER NYLON BUSHING (IN RAIL) 2

6 YPSU1391 SL2 REACTOR TRANSFER ADJUSTER STYLE 3 2

7 YPSU1392 REACTOR LOWER OUTER BOLT (CUSTOM TITANIUM) 1

8 YPSU1393 REACTOR LOWER INNER NUT (CUSTOM TITANIUM) 1

9 YPSU1582 RAIL TIP 1

10 YPSU1328 SLIDER, 120" RAIL, GRAPHITE, 41.75" LONG 1

11 YPSU1583 BUMPER, RAIL FRONT ARM 1

12 YPHW1592 BOLT, M6-1.00 x 20mm FHSD, Ti 2

13 YPHW1589 BOLT, M6-1.00 x 12mm FHSD, Ti 4

14 YPSU1274 BUMPER, REAR ARM, M10 STYLE 1

15 YPHW1596 SCREW, M5-.8 X 30mm, BUTTON HEAD SOCKET CAP 3

16 YPHW1617 SCREW, M5-.8 X 35mm, BUTTON HEAD SOCKET CAP 1

17 YPHW1597 NUT, M5-.8, FLANGE NYLOCK, ZP 4

18 YPHW1254 SCREW, M6.3-1.81 X 16MM, PHILLIPS 1

OPTION

1 YPSU1267 RAIL, 120" ALUMINUM, 1.0

1 YPSU1269 RAIL, 137" ALUMINUM, 1.0

1 YPSU1270 RAIL, 146" ALUMINUM, 1.0

10 YPSU1330 SLIDER, ALL LENGTH REPLACEMENT, GRAPHITE, 55.0" LONG,

POLARIS PROFILE 26

NOTE

WHEN REPLACING SLIDERS USE PART NUMBER YPSU1330 AND TRIM TO LENGTH

 


SLR SUSPENSION, AXLE ASSEMBLY REF:YASU1639

SLR SUSPENSION, AXLE COMPONENTS

1 YPSU1360 REAR AXLE CENTER 6061 ALUMINUM 1

2 YPSU1362 REAR AXLE FIBER REINFORCED PA COLLAR 2

3 YPSU1361 REAR AXLE OUTER NUT (ALUMINUM) 17MM HEAD 2

4 YPSU1365 REAR WHEEL 8" PLASTIC W/BEARING 2

5 YPHW1640 BOLT, M6-1.0 X 75mm, FLANGE HEAD 8mm HEX DRIVE, Ti 2

6 YPSU1367 AXLE 3MM SPACER AL 2

7 YPHW1695 ORING, #009 7/32 ID X 1/16 C.S. X 11/32 OD 2

OPTION

4 YACU2103 WHEEL, 8" REAR, CARBON W/BEARING 1

NOTE

1. THE ORIGINAL 2016 YETI ALUMINUM BLACK ANODIZED LOWER SHOCK

SHAFTS HAVE BEEN UPGRADED TO A STRONGER TITANIUM UPGRADE KIT PART

NUMBER YACU2062. SEE DRAWING YPCU2062 FOR MOR DETAILS.

2. EARLY 2016 AXLES REQUIERED ITEM #6 SPACER. LATER KITS DID NOT USE.


SUSPENSION TECH TIPS

The YETI rear suspension requires no maintenance, there are no grease zerks, all shafts use plastic bushings.

The rear reactor arm coupling blocks come in two sizes to limit the front ski lift, the round couplers give the most ski lift (least coupling) and the oval ones reduce the ski lift the most ( most coupling)

The front FOX Float 3 shock should have a higher air pressure than the rear FOX Float 3 shock by at least 20 lbs of air pressure, as the front shock does most of the work.

To start setting your rear suspension for the initial ride, try 70 psi in the front rear skid shock and 35 psi in the rear ski shock. Heavier riders might want more air pressure and lighter riders less.

The FOX shocks do fluctuate in pressure due to air temperature and elevation changes, check your pressure and re-adjust as required.

Check your rear suspension bolts


SUSPENSION FREQUENTLY ASKED QUESTION

Q: How does the rear suspension set up effect and strut rod adjustment effect how the ski “darts” or “grabs” in harder crusted snow conditions, or on certain trail conditions and how do I fix that?

A: We have learned that setting up the strut rod is the most important step to proper YETI handling. Adjusting the strut rod will drastically effect how your MAXKEEL SKI handles in different snow conditions, learn how to easily adjust to suit your riding style.  Each full rotation of the strut rod is equal to .125” of rear suspension rail lift or drop measured at the rear shock shaft.  

Each full rotation of the strut rod clockwise will raise the rear suspension rails measured at the rear lower shock shaft .125”

Each full rotation of the strut rod counterclockwise will raise the front of the suspension rails measured at the front lower shock shaft .125”

We have found the best initial YETI set up, is starting with the rear shock shaft .400” higher than the front shock shaft. This is good for all conditions and rider styles.

The front ski will “dart” or “grab” when there is too much ski pressure, or when there is too little ski pressure, the effect will feel almost the same.

Most of the time we have found that a quick adjustment on the trail of two turns in either direction makes a huge difference.

NOTE: The YETI SNOWMX instructions for 2016 recommended the initial setup of the rear strut rod was with the centre track paddle aligned with the front lower shock cross shaft, and having a gap of .020” ( enough to slide a piece of paper through the gap). Through customer feedback and testing last winter, we have changed that spec.

The new spec is to measure the height from the floor to the centre of the two lower shock cross shafts. The rear shock cross shaft should measure .400” higher than the front shock cross shaft.

When the bike is on the flat ground sitting on the centre skag ( no wheel kit installed).

 

Q: My bike is pulling a big wheelie that is hard to control, how can I tame that down?

A: Changing the rear suspension coupling blocks, from the round couplers to the oval shaped couplers will reduce the front ski lift substantially. We have found that an uncontrollable wheelie can be reduced to a nice 1-2’ consistent wheelie by changing these blocks. This is especially helpful on large HP turbo bikes or in the spring snow with huge traction.

 

Q:  I have noticed there are 3 front suspension holes for the front suspension arm, why?

A: These holes allow you to fine tune your front ski pressure for your riding style. Moving the bolt up in the suspension plate increases ski pressure, and moving the bolt down reduces the front ski pressure.  

 

Q: I noticed my front limiter strap is fixed, what length should it be? 

A: The front limiter strap on the 2016 YETI SNOWMX is intended to be 8.75” long. This is measured from the centre of the lower shaft to the centre of the titanium suspension arm. If your limiter strap is measuring longer than 8 3/4”, we suggest you unbolt the lower shaft that the limiter strap is attached to, and twist it until you reach the desired length.  The limiter straps are pre-stretched but we have learned that some seem to be stretching after installation.

This will dramatically effect ski pressure and how your YETI handles. The longer the limiter strap is, it will cause a “twitchy” and “grabby” front ski in certain snow conditions which can easily be mistaken for too much ski pressure, but it actually has too little.

See our video at the bottom regarding the limiter strap adjustment.

NOTE: 2017 YETI’s have no limiter strap, the front shock works as the limiter strap.

 

Q: I notice some “green” coloured oil coming out of the air valve on the FOX shocks, is that normal?

A: It is ok to have some “green” coloured oil coming out of the air valve on your FOX shocks, this is the assembly lube and it can come out of the air valve, that is not a problem.

 

Q: I notice some “red” coloured oil coming out of the air valve on the FOX shocks, is that normal?

A: If you have “red” oil coming out of the air valve, the main oil chamber of the shock is leaking it’s oil. Contact your YETI dealer to find out how to have this repaired.


Rear strut rod set up


2016 LIMITER STRAP ADJUSTMENT 


TITANIUM LOWER SHOCK SHAFT REPLACEMENT


TITANIUM UPPER REAR CROSS SHAFT REPLACMENT

TBA


COUPLER BLOCK EXCHANGE


BOOGIE WHEEL INSTALLATION