2012 YAMAHA YFM350R maintenance

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EBU21743Periodic maintenance chart for the emission control system TIP
For ATVs not equipped with an odometer or an hour meter, follow the month maintenance intervals.
For ATVs equipped with an odometer or an hour meter, follow the km (mi) or hours maintenance inter-
vals. However, keep in mind that if the ATV isn’t used for a long period of time, the month maintenance
intervals should be followed.
Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools,
data and technical skills.NO. ITEM CHECK OR MAINTENANCE
JOB INITIAL
EVERY
Whichev- er comes first month136612
km
(mi) 320
(200) 1300
(800) 2500
(1600) 2500
(1600) 5000
(3200)
hours 20 80 160 160 320
1 *Fuel line 
Check fuel hoses for cracks or other damage, and
replace if necessary. √√√
2 Spark plug 
Check condition and clean, regap, or replace if
necessary. √√√√√
3 *Valves Check valve clearance and adjust if necessary. √ √√√
4 *Carburetor 
Check starter (choke) operation and correct if nec-
essary.
 Check engine idling speed and adjust if neces-
sary. √√√√
5 *Crankcase breather
system 
Check breather hose for cracks or other damage,
and replace if necessary. √√√
U1BS62E0.book Page 3 Monday, April 18, 2011 6:43 PM

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6*Exhaust system 
Check for leakage and replace gasket(s) if neces-
sary.
 Check for looseness and tighten all screw clamps
and joints if necessary. √√√
7 Spark arrester Clean. √√√
NO. ITEM
CHECK OR MAINTENANCE
JOB INITIAL EVERY
Whichev- er comes first month136612
km
(mi) 320
(200) 1300
(800) 2500
(1600) 2500
(1600) 5000
(3200)
hours 20 80 160 160 320U1BS62E0.book Page 4 Monday, April 18, 2011 6:43 PM

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EBU21865General maintenance and lubrication chart TIP
For ATVs not equipped with an odometer or an hour meter, follow the month maintenance intervals.
For ATVs equipped with an odometer or an hour meter, follow the km (mi) or hours maintenance inter-
vals. However, keep in mind that if the ATV isn’t used for a long period of time, the month maintenance
intervals should be followed.
Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools,
data and technical skills.NO. ITEM CHECK OR MAINTENANCE
JOB INITIAL
EVERY
Whichev- er comes first month136612
km
(mi) 320
(200) 1300
(800) 2500
(1600) 2500
(1600) 5000
(3200)
hours 20 80 160 160 320
1 Air filter element Clean and replace if necessary. Every 20
–40 hours (more often in wet or
dusty areas)
2 *Clutch Check operation and adjust if necessary. √ √√√
3 *Front brake 
Check operation and correct if necessary.
 Check fluid level and ATV for fluid leakage, and
correct if necessary. √√√√√
 Replace brake pads. Whenever worn to the limit
4 *Rear brake 
Check operation and correct if necessary.
 Check fluid level and ATV for fluid leakage, and
correct if necessary. √√√√√
 Replace brake pads. Whenever worn to the limit
U1BS62E0.book Page 5 Monday, April 18, 2011 6:43 PM

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5*Brake hoses 
Check for cracks or other damage, and replace if
necessary. √√√√
 Replace. Every 4 years
6 *Parking brake Check operation and adjust if necessary. √√√√√
7 *Wheels 
Check runout and for damage, and replace if nec-
essary. √ √√√
8 *Tires 
Check tread depth and for damage, and replace if
necessary.
 Check air pressure and balance, and correct if
necessary. √ √√√
9 *Wheel hub bearings 
Check for looseness or damage, and replace if
necessary. √ √√√
10 *Swingarm pivots 
Check operation and for excessive play, and re-
place bearings if necessary.
 Lubricate with lithium-soap-based grease. √√√
11 *Upper and lower
arm pivots

Lubricate with lithium-soap-based grease. √√√
12 Drive chain 
Check chain slack and adjust if necessary.
 Check rear wheel alignment and correct if neces-
sary.
 Clean and lubricate. √√√√√
13 *Drive chain rollers Check for wear and replace if necessary. √√√
NO. ITEM
CHECK OR MAINTENANCE
JOB INITIAL EVERY
Whichev- er comes first month136612
km
(mi) 320
(200) 1300
(800) 2500
(1600) 2500
(1600) 5000
(3200)
hours 20 80 160 160 320U1BS62E0.book Page 6 Monday, April 18, 2011 6:43 PM

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14*Chassis fasteners 
Make sure that all nuts, bolts, and screws are
properly tightened. √√√√√
15 *Shock absorber as-
semblies 
Check operation and correct if necessary.
 Check for oil leakage and replace if necessary. √√√
16 *Rear suspension re-
lay arm and con-
necting arm
pivoting points 
Check operation and correct if necessary.
 Lubricate with lithium-soap-based grease. √√√√
17 *Steering shaft Lubricate with lithium-soap-based grease. √√√
18 *Steering system 
Check operation and repair or replace if damaged.
 Check toe-in and adjust if necessary. √√√√√
19 Engine oil 
Change.
 Check ATV for oil leakage, and correct if neces-
sary. √ √√√
20 Engine oil filter ele-
ment 
Clean or replace if necessary. √√√
21 Engine oil strainer Clean. √√√
22 *Moving parts and
cables 
Lubricate. √√√√
NO. ITEM
CHECK OR MAINTENANCE
JOB INITIAL EVERY
Whichev- er comes first month136612
km
(mi) 320
(200) 1300
(800) 2500
(1600) 2500
(1600) 5000
(3200)
hours 20 80 160 160 320U1BS62E0.book Page 7 Monday, April 18, 2011 6:43 PM

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EBU23071TIP
Some maintenance items need more frequent service if you are riding in unusually wet, dusty, sandy or
muddy areas, or at full-throttle.
Hydraulic brake service
Regularly check and, if necessary, correct the brake fluid level.
 Every two years replace the internal components of the brake master cylinders and calipers, and
change the brake fluid.
 Replace the brake hoses every four years and if cracked or damaged.23 *Throttle lever 
Check operation.
 Check throttle lever free play, and adjust if neces-
sary.
 Lubricate cable and lever housing. √√√√√
24 *Front and rear brake
switches

Check operation and correct if necessary. √√√√√
25 *Lights and switches 
Check operation and correct if necessary.
 Adjust headlight beams. √√√√√
NO. ITEM
CHECK OR MAINTENANCE
JOB INITIAL EVERY
Whichev- er comes first month136612
km
(mi) 320
(200) 1300
(800) 2500
(1600) 2500
(1600) 5000
(3200)
hours 20 80 160 160 320U1BS62E0.book Page 8 Monday, April 18, 2011 6:43 PM

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EBU23213Checking the spark plug The spark plug is an important engine component,
which is easy to check. Since heat and deposits
will cause any spark plug to slowly erode, the spark
plug should be removed and checked in accor-
dance with the periodic maintenance and lubrica-
tion chart. In addition, the condition of the spark
plug can reveal the condition of the engine.
To remove the spark plug1. Remove the spark plug cap. 2. Remove the spark plug as shown, with the
spark plug wrench included in the owner ’s tool
kit.
To check the spark plug 1. Check that the porcelain insulator around the center electrode of the spark plug is a medi-
um-to-light tan (the ideal color when the ATV
is ridden normally).1. Spark plug cap
1. Spark plug wrench
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TIPIf a torque wrench is not available when installing
the spark plug, a good estimate of the correct
torque is 1/4–1/2 turn past finger tight. However,
the spark plug should be tightened to the specified
torque as soon as possible.3. Install the spark plug cap.EBU2327EEngine oil and oil filter element The engine oil level should be checked before
each ride. In addition, the oil must be changed and
the oil filter element cleaned at the intervals speci-
fied in the periodic maintenance and lubrication
chart.
To check the engine oil level 1. Place the ATV on a level surface.
2. Check the engine oil level on a cold engine.
TIPIf the engine was started before checking the oil
level, be sure to warm up the engine sufficiently,
and then wait at least ten minutes until the oil set-
tles for an accurate reading.3. Remove the engine oil filler cap, and then wipe the engine oil dipstick off with a clean
rag.
4. Insert the dipstick into the filler hole (without screwing it in), and then remove it again to
check the oil level.TIPThe engine oil should be between the minimum
and maximum level marks.
Tightening torque:Spark plug:18 Nm (1.8 m ·kgf, 13 ft ·lbf)
U1BS62E0.book Page 11 Monday, April 18, 2011 6:43 PM