Yamaha FX Nytro FX10Y Owner's Manual page 57

To change the engine oil (with or without oil fil-
ter cartridge replacement)
1. Place the snowmobile on a level surface
and apply the parking brake.
2. Start the engine, warm it up for several
minutes, and then turn it off.
3. Remove the shroud, the left side cover,
the right side cover, and the drive guard.
(See pages 17 and 44 for removal proce-
dures.)
4. Remove the left lower cover, the right
lower cover, and the bottom panel.
2
4 3
1. Left lower cover
2. Quick fastener
3. Bolt
4. Washer
2
1. Right lower cover
2. Quick fastener
3. Bolt
4. Washer
Periodic maintenance and adjustment
3 1
1
3
3
1. Bottom panel
2. Quick fastener
5. Place an oil pan under the oil tank to col-
lect the used oil.
6. Disconnect the oil level gauge coupler.
2
1. Oil level gauge coupler
2. Oil filler cap
7. Remove the oil filler cap, cylinder head
2
cap, and drain bolt to drain the oil from
the oil tank.
4
1. Cylinder head cap
51