What PSI should I use on the stock tires with a 250-270 lb rider?

I plan on doing 18 ounces of Slime Tire Sealant on the front and 27 ounces on the rear (about 3/4 of a gallon per ATV.) This shouldn't affect the psi will it? Are these types of tires prone to leakage? Should I think about cleaning and sealing the bead with something before just go ahead and have them filled with nitrogen? Is nitrogen overkill or will it just leak out and be wasteful?

-JNY

 

I know a guy who runs a Big O tire store here. He said nitrogen is denser than air, and will help quiet down a tire, ie mud tires, etc... And it won't expand as much as air will from heat buildup.

IMO, unless you're running in a race, and tire growth could cause a handling problem, I won't spend the money. JMO.

I'm running about 3psi in my 250. I tried 5 psi, and it rode like it had Flintstones type tires.[img]i/expressions/face-icon-small-happy.gif[/img]

 

3psi! cool.

Yeah, nitrogen typically won't leak out of a tire the way air slowly does, as well as being impervious to temperture changes. I was only considering using it to help keep the tires from leaking, not for any real performance reason, but it won't help much if ATV tires are prone to slowly leaking (the way car tires do eventually.)

-JNY

 

I've only had one tire leak, and it really wasn't the tires fault. We rode in some loose sand, and while cornering we got some sand between the bead and the rim. I broke the bead loose, and cleaned the bead and rim. I smeared alittle silicone gasket maker around the rim edge too. End of problem.

 

Right on. I might go ahead and use some silicon on the bead before I put in the slime and go ahead and pay the $10 for nitrogen. I guess it can't hurt! I REALLY REALLY REALLY do NOT want to get stuck in the woods by myself.

-JNY

 

pimpsmurf, i was running 4 psi in my tires. That was after filling them up with about 25 psi for 24 hours to seat the rims. i have had no problems with the tires losing air. I would charge your shocks with nitrogen if you have some around.

 

What PSI Nitrogen should be in those shocks? Do I just take them to the place where I would fill the tires with nitrogen and have them do it, or should I take it to a local honda/yamaha/etc ATV dealership to have them do it? I'm not sure what kind of tip is on those shocks.

I can leave the tires with 25psi to make sure they seat, great tip!!

My ATVs are going to be at a a warehouse 45 minutes from my house, so they should be delivered soon!! =)

-JNY

 

When i have my Honda shocks charged Im pretty sure its to around 140-160 PSI. I would have them try approx 100 psi and see how it goes. Thats the PSI I was going to try. the fitting on the Jetmoto shock is a standard needle valve like on a tube/tire.

 

Good to know! I'm going to call the tire shop and see what psi they are capible of on the nitrogen machine. I'm pretty sure they can do over 100psi if needed.

After I put in 100psi of nitrogen in the shocks, what am I going to be looking for? I'm not sure what the nitrogen charge does to the tuning of the shock, because I thought they were oil-filled not gas shocks.

-JNY

 

Good to know! I'm going to call the tire shop and see what psi they are capible of on the nitrogen machine. I'm pretty sure they can do over 100psi if needed.

After I put in 100psi of nitrogen in the shocks, what am I going to be looking for? I'm not sure what the nitrogen charge does to the tuning of the shock, because I thought they were oil-filled not gas shocks.

-JNY