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Old 04-29-2011, 06:51 PM   #1
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I'm new to nitro and I just picked up an Ofna Ultra LX it hasn't been run in 4-5 years. everything seems to be in working order I just took the motor out to bring to my lhs. Is there anything I need to know about this buggy? Should i rebuild the diffs?
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Old 04-29-2011, 07:19 PM   #2
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New to Nitro or not, It dosent matter what kind of 4-5 year old not driven buggy it is either. You should go through the whole thing to see if it's even worth rebuilding what it needs.
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Old 04-29-2011, 09:40 PM   #3
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+1, I would recommend taking it all apart, check everything, refill diffs-shocks, check all parts for integrity, reassemble and reset all adjustments to recommended specs. Then you're off to having some Nitro fun!
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Old 04-29-2011, 09:58 PM   #4
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ya i agree with them i would definitely go threw the whole thing and bring all your factory settings back
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Old 05-01-2011, 08:15 AM   #5
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Only issue I ever had with that buggy was the front and rear diff ring gears. The stock ones are cast, and they suck. I tore them up almost immediately. When you re-build the diffs, do yourself a favor and buy the hardened steel diff ring gears and throw them on there. I went through about 5 or 6 stock ones while I tried different shimming. Nothing worked except the steel ones.

Check your usual wear components like clutch, shocks and bearings. For sure, replace clutchbell bearings. You will want to do this at least once per gallon of fuel, if not sooner.

If the buggy is that old, you will want to replace the fuel tubing and probably the fuel tank as well. Nothing will be more frustrating than trying to tune an engine with an air leak in your fuel line or tank.
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