2007 YAMAHA GRIZZLY 350 carb

8-25
8
CAUTION:ECB00480The carburetor has been set and extensively
tested at the Yamaha factory. Changing these
settings without sufficient technical knowl-
edge may result in poor performance of ordamage to the engine.EBU24000Adjusting the engine idling speed The engine idling speed must be checked and, if
necessary, adjusted as follows at the intervals
specified in the periodic maintenance and lubrica-
tion chart.NOTE:A diagnostic tachometer is needed to make thisadjustment.
1. Start the engine and warm it up.NOTE:The engine is warm when it quickly responds to thethrottle.
2. Attach the tachometer to the spark plug lead.
3. Check the engine idling speed and, if neces-
sary, adjust it to specification by turning the
throttle stop screw at the carburetor. To in-crease the engine idling speed, turn the throt-
tle stop screw in direction (a), and to decrease
it, turn the screw in direction (b).
NOTE:If the specified idling speed cannot be obtained as
described above, have a Yamaha dealer make theadjustment.1. Throttle stop screwEngine idling speed:
1450–1550 r/min
U4S260E0.book Page 25 Tuesday, October 3, 2006 1:53 PM

9-2
9
WARNING
EWB02310Wet brakes may have reduced stopping ability,
increasing the chance of an accident. Test the
brakes after washing. Apply the brakes several
times at slow speeds to let friction dry out thelinings.EBU25932Storage Short-term
Always store your ATV in a cool, dry place and, if
necessary, protect it against dust with a porous
cover.CAUTION:ECB00720
Storing the ATV in a poorly ventilated room
or covering it with a tarp while it is still wet,
will allow water and humidity to seep in and
cause rust.
To prevent corrosion, avoid damp cellars,
stables (because of the presence of ammo-
nia) and areas where strong chemicals arestored.Long-term
Before storing your ATV for several months:
1. Follow all the instructions in the “Cleaning”
section of this chapter.
2. Turn the fuel cock lever to “OFF”.
3. Drain the carburetor float chamber by loosen-
ing the drain bolt; this will prevent fuel deposits
from building up. Pour the drained fuel into the
fuel tank.
4. Fill up the fuel tank and add fuel stabilizer (if
available) to prevent the fuel from deteriorat-
ing.
5. Perform the following steps to protect the cyl-
inder, piston rings, etc. from corrosion.
a. Remove the spark plug cap and spark
plug.
b. Pour a teaspoonful of engine oil into the
spark plug bore. Specified amount:
7.5 ml of stabilizer to each liter of fuel (or 1 oz
of stabilizer to each gallon of fuel)
U4S260E0.book Page 2 Tuesday, October 3, 2006 1:53 PM

10-2
10
Engine oil:Type:
SAE5W30 or SAE10W30 or SAE10W40 or SAE15W40
or SAE20W40 or SAE20W50
Recommended engine oil grade:
API service SG type or higher, JASO standard MA
Engine oil quantity:
Without oil filter cartridge replacement:
2.20 L (2.33 US qt) (1.94 Imp.qt)
With oil filter cartridge replacement:
2.30 L (2.43 US qt) (2.02 Imp.qt)Final gear oil:Type:
Yamaha Friction Modified Shaft Drive Gear Oil
(EUR)(GBR)
Yamaha Friction Modified Shaft Drive Gear Oil (Part No.:
ACC-SHAFT-LU-00) (AUS)(NZL)Quantity:
0.50 L (0.53 US qt) (0.44 Imp.qt)
Differential gear oil:Type:
Yamaha Friction Modified Shaft Drive Gear Oil (Part No.:
ACC-SHAFT-LU-00) or SAE80 API GL-4 Hypoid gear oil
(AUS)(NZL)
Yamaha Friction Modified Shaft Drive Gear Oil or SAE80
API GL-4 Hypoid gear oil (EUR)(GBR)
Quantity:
0.23 L (0.24 US qt) (0.20 Imp.qt)Air filter:Air filter element:
Wet elementFuel:Recommended fuel:
Regular unleaded gasoline only (EUR)(GBR)
Unleaded gasoline only (AUS)(NZL)
Fuel tank capacity:
13.5 L (3.57 US gal) (2.97 Imp.gal)
Fuel reserve amount:
3.3 L (0.87 US gal) (0.73 Imp.gal)Carburetor:Manufacturer:
MIKUNI
Type x quantity:
BSR33 x 1Spark plug (s):Manufacturer/model:
NGK/DR8EA
-20˚ -10˚ 0˚
10˚20˚ 30˚40˚50˚C
10W/30
15W/4020W/4020W/50
10W/40
5W/30
U4S260E0.book Page 2 Tuesday, October 3, 2006 1:53 PM

INDEX
AAccessories and loading ................................................ 6-6
Air filter element, cleaning ............................................ 8-19
Axle boots .................................................................... 8-34BBattery .......................................................................... 8-39
Brake fluid, changing ................................................... 8-29
Brake fluid level, checking ........................................... 8-28
Brake lever free play, checking the front ...................... 8-29
Brake lever, front .......................................................... 4-11
Brake levers, checking and lubricating ........................ 8-36
Brake light switches ..................................................... 8-35
Brake pads and friction plates, checking ..................... 8-27
Brake pedal and brake lever free play (rear) and
brake pedal position, adjusting and checking ............ 8-30
Brake pedal and rear brake lever ................................. 4-11
Brake pedal, checking and lubricating ......................... 8-37
Brakes, front and rear .................................................... 5-3CCables, checking and lubricating ................................. 8-36
Carburetor, adjusting ................................................... 8-24
Carrier, front ................................................................. 4-19
Carrier, rear .................................................................. 4-19
Chassis fasteners .......................................................... 5-7
Cleaning ......................................................................... 9-1DDifferential gear lock indicator light ................................ 4-3
Differential gear oil ................................................ 5-3, 8-17Drive select lever ......................................................... 4-12
Drive select lever and driving in reverse ........................ 6-3
Drive select lever safety system cable, adjusting ........ 8-27
Drive shaft universal joint, lubricating .......................... 8-37
EEngine break-in .............................................................. 6-4
Engine, cold start ........................................................... 6-1
Engine idling speed ..................................................... 8-25
Engine oil ....................................................................... 5-3
Engine oil and oil filter cartridge ................................... 8-10
Engine, starting a warm ................................................. 6-3
Engine stop switch ......................................................... 4-4FFinal gear oil ......................................................... 5-3, 8-14
Four-wheel-drive indicator light ...................................... 4-3
Fuel ....................................................................... 4-14, 5-3
Fuel cock ..................................................................... 4-15
Fuel tank cap ............................................................... 4-13
Fuses, replacing .......................................................... 8-40HHandlebar switches ....................................................... 4-4
Headlight beam, adjusting ........................................... 8-44
Headlight bulb, replacing ............................................. 8-42
Horn switch .................................................................... 4-5IIdentification numbers .................................................. 11-1
Indicator lights and warning light ................................... 4-2
Instruments, lights and switches .................................... 5-7
U4S260E0.book Page 1 Tuesday, October 3, 2006 1:53 PM