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XR250 shock pressure

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Attached is a couple of snaps of the shock from my 1991 xr250. There doesn't appear to be a valve for recharging the nitrogen. Does this type not have it or does it come apart further ?

 

Damper1.JPG

Damper2.JPG

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thanks - it is so cruddy it looked like 1 piece.

can the pressure be tested to see if it needs repressurising ?

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Yeah, you have to find a shop that does nitrogen. It's like a near inert gas is why they use it I guess (well the temp to actually heat it is way outside the operating temps you would see on a shock or a tire).

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you need a NO LOSS chuck to check pressure, the volume is so low if you put a standard tire pressure gauge on it you will lose a significant amount of nitrogen and be starting over after a recharge. 

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yeah that is what i gathered. so seeing as it seems to have loads of damping on the bench, i'm going to put it on the bike and see how it feels. i have no ideas what rider weight it is sprung for either, the springs says 211 hand written on it. that i guess is 211 pounds as thats how we measure springs here, but 211 seems like an odd number, more the result of a test than manufactured.

 

 

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