Need to take the rear suspension off AN XR150 mountain bike

"bushes"??

Change the spring to your load.

Adjust Mozo M30 Fork Suspension - Beckman Du-70 Forum

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Results 1 - 15 of 15 - Mongoose XR 150 mozo m30 front forks rebuild. A quick ...Mongoose mozo m30 forks are sponggy on my XR150 mongoose mountain bike.

mozo??- Mtbr.com

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Feb 20, 2006 - 15 posts - ‎6 authors
... of a mozo m30? is it the junk im assuming came on my mongoose? ... into a halfway decent bike. and all i can get off the fork is mozo m30 ...

Mongoose XR250 Suspension Upgrades ' Bicycling Magazine Forums

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It's prabably easier to buy a whole new hub. And for ablout another $20 you get a whole new tire. You should do that. Have a bike shop do it because it can be tricky.

A "hardtail" is a mountain bike that has a front suspension fork (like the one on the right) and no shock absorber in the back. Good hardtails are light, fast and responsive, and because of this they are good for climbing.
Even the cheapest mountain bikes these days tend to have suspension forks. That's not necessarily a good thing, since most of the forks on cheap bikes are of poor quality and will probably need replacing before too long. The cheapest forks also tend to be sold only on new bikes, and not separately. Find out the make and model of the fork, and search around on the web for it. The price will give you an indication of the fork quality.
Most decent bikes are sold with Rock Shox, Manitou, or Marzocchi. Marzocchi has been making forks longer than anyone and has probably the best reputation, but they tend to be expensive so you won't find them on anything but expensive bikes. Rock Shox and Manitou make lower-end (but reasonably good) forks. Other reputable brands such as Fox and Suntour make forks that may very well provide a good service life, but are not as well known for mountain bike forks. Replacement forks can be found at very low prices during sales and clearance events, so they can be upgraded later (sometimes at a bargain price). A "full suspension" bike has the front suspension fork and a rear suspension (like the bike on the right). These are highly recommended if you ride in a lot of rocks, as the rear suspension allows you to glide over rough terrain. They're also good for big jumps. The rear shock adds some complexity to the bike, and a good bit more weight at any give price point, plus there'll be a bit more maintenance. Plus, you'll pay a few hundred dollars more than a hardtail for a bike of otherwise equal components. Depending on your terrain, it might be worth it; riding a hardtail in big rocks can be brutal.

As much as you can stand. For the first-time mountain bike buyer, the cost of mountain bikes may be a bit shocking. As a general rule, you'll pay the following: Junk hardtail < $300
Light-use hardtail $300-500
Intermediate hardtail $500-800
Race-ready hardtail $800-2,000
Boutique hardtail $2,000+
Junk full-suspension < $800
Light-use full-suspension $800-1,500
Intermediate full-suspension $1,500-2,000
High-end full-suspension $2,000+

Since you've let the air out of the shock you need to go to a Bike Shop for a refill anyway because a normal pump doesn't reach the pressures supplied by a shock pump. While you're there, have them set the bike up for your preferences and instruct you in shock operation.

Until it is hard except on a hot day because the heat will cause it to expand and pop like mine did.

have you tryed re oiling it the seal may have gone causing it to rub.

Check this link and follow the indication, it is a thorough guide to maintaining and testing your bicicle suspension: HippieTech Mountain Bike Suspension Tuning and Repair ...