XTX Rear Shock low pressure 150 >> 300 PSI

[Longnecker]

Guys, on some (maybe all) XTX sleds the rear XTX shock is factory set to 150 PSI and it should be 285 to 300 PSI.

My skid does not come up to the top when I get off and suspect low pressure. Taking it to the dealer tomorrow to check it out. So far 3 of 4 sleds were set at only 150 PSI. My sled is No 4 and expecting low pressure.

Hand wormers do not work well at low motor RPM's, easy running at 40 MPH on a road with little motor load is an issue. Running harder they heat up.

Longnecker

 

[nate007]

Please update your site profile to include your location, per site rules
Thank You

 

[booxr800]

Please keep us posted on this if in fact its an issue, how could they be off so far on the pressure I could see a few pounds.

 

[RTXRay]

Are you sure you can even check the pressure. I heard its impossible to check accurately, The volume of gas in those shocks is so small that a little bit of charge volume needed to re-pressurize your hose and gauge set can alter the pressure significantly.

 

[Longnecker]

You might have a point on checking accuracy. Anyway I took it out and had it pumped up to 285 PSI.

They guy who did it was apprehensive about going over 210 PSI.

Info trail seems to be coming out of Poineer and Yamaha. Now if it would just stop raining and start snowing again we might be able to see what it did.

So far I shortened the limiter by 1 hole, minimized the control rods to the red line and moved the rear spring adjuster to hard. All dampening setting still in mid range per manual. Handling is quite good for my 235 lb dressed weight.

No slider ware in the front curve, there is a bit from the tip up wheel in the back towards the front for about 2 feet.

 

[1049]

Correct XTX gas pressure spec:
Rear shock - 174 psi
Center shock - 284 psi

I'd double check your source

 

[Srxspec]

We will be testing new Works and Fox rear shocks as well as different rear torsion springs on the XTX to try to get the ride a little smoother as well!

 

[Alatalo]

Are you sure you can even check the pressure. I heard its impossible to check accurately, The volume of gas in those shocks is so small that a little bit of charge volume needed to re-pressurize your hose and gauge set can alter the pressure significantly.

Very possible. When installing the pressure gauge, you are basically adding volume to the shock absorber nitrogen reservoir. A small amount of nitrogen will then escape from the shock absorber nitrogen reservoir into the gauge, thus lowering the amount of nitrogen and thereby the pressure inside the shock absorber nitrogen reservoir. I do not know about the XTX shocks, but depending on the volume of your shock absorber nitrogen reservoir and your gauge, the change in pressure can be anything between small and big. I work with shocks all day long and trust me - this is a very common reason for people to believe that their shocks are low on pressure...
Furthermore, the nitrogen pressure is not a tuning variable. It should always be set to factory specifications, unless you have made a major change to the compression damping and have got the skills to calculate a new pressure level that will avoid cavitation.