Changing your Suzuki LT-Z250's motor oil and oil filter is a crucial part of maintaining your ATV. While most modern ATVs use an automotive-type oil filter, which screws into place for easy replacement, the Z250 ATV uses an internal filter element to screen its motor oil. Although the Z250's oil filter is held within the motor, removing and replacing it is fairly straightforward and will only add a few minutes to the job.
Things You'll Need
- Oil Pan
- Socket wrench and sockets
- Oil filter cover O-ring (Suzuki part #09280-54001)
- Oil filter O-ring (Suzuki part #09280-13004)
- Oil filter (Suzuki Part #16510-25C00)
Drain the oil from the motor. Locate the oil drain plug on the bottom of the right motor's crankcase cover and place an oil pan beneath it. Using a 17mm socket wrench, remove the drain plug and allow the oil to drain. Screw the drain plug into place until it is seated against the crankcase then tighten it an additional half-turn with a socket wrench.
Locate the oil filter cover on the right crankcase cover, behind the rear brake pedal. Move the oil pan directly under the oil filter cover. Using a socket wrench, remove the drain plug from the center of the oil filter cover and allow any remaining oil to drain. Screw the drain plug into place until it is seated against the oil filter cover then tighten it an additional half-turn with a socket wrench.
Remove the set of three bolts that secure the oil filter cover to the right crankcase cover with a socket wrench. Pull the oil filter cover away from the right crankcase cover to reveal the oil filter. A spring attached to the inner surface of the oil filter may have been dislodged during removal. Press the spring onto the flange in the center of the oil filter cover. Inspect the oil filter cover's large O-ring for damage, replacing it if there is any sign of tears or stretching.
Pull the oil oil filter out of the motor and remove the O-ring from the inner face of the filter. Inspect the O-ring and replace it if it is torn or damaged in any way. Discard the old oil filter.
Slip the O-ring onto the open inner end of the new oil filter and slide the filter into the motor. Place the oil filter cover over the oil filter. Insert the set of three bolts into the oil filter cover and tighten them with a socket wrench.
Tips & Warnings
- Wipe away any oil spills with a clean shop towel before riding the ATV to prevent the smoke caused by burning oil.
- Dispose of used oil and filters responsibly by having it recycled at your local auto parts store.
- Use care not to over-tighten the motor's drain plugs. Excessively tightening the plugs will strip the motor's threads and prevent the plugs from sealing completely.
- "The Professional Motorcycle Repair Program"; Professional Career Development Institute; 1995
- "2004 Suzuki LT-Z250 Quad Sport Owner's Manual"; Suzuki Motor Corporation; 2004
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