2006 YAMAHA TTR50 fuel line

IMPORTANT NOTICE
This machine is designed for off-road use only
by young operators under adult instruction and
supervision. It is illegal for this machine to be
operated on any public street, road, or high-
way.
Off-road use on public lands may be illegal.
Please check local regulations before riding.1. GASOLINE IS HIGHLY FLAMMABLE: * Always turn off the engine when
refueling.
* Take care not to spill on the engine or exhaust pipe/muffler, when refu-
eling.
* Never refuel while smoking or in the vicinity of an open flame.
2. If you should swallow some gasoline or inhale a lot of gasoline vapor, or
allow some gasoline to get in your
eye(s), see your doctor immediately.
If any gasoline spills on your skin or
clothing, immediately wash it with
soap and water, and change your
clothes.
3. Always turn off the engine before leaving the machine unattended.
When parking the machine, note the
following:
* The engine and exhaust pipe(s)/muffler(s) may be hot. Park the
machine in a place where pedestri-
ans or children are not likely to
touch the machine.
* Do not park the machine on a slope or soft ground; the machine may
overturn.
SAFETY INFORMATION

4. When transporting the machine inanother vehicle, be sure is kept
upright and that the fuel cock is
turned to the “OFF ”. If it should lean
over, gasoline may leak out of the car-
buretor or fuel tank.
5. Never start your engine or let it run for any length of time in a closed
area. The exhaust fumes are poison-
ous and may cause loss of con-
sciousness and death within a short
time. Always operate your machine in
an area with adequate ventilation.
6. Always wear a helmet, gloves, boots, trousers, and jacket for motocross
riding.

1 - 11
GEN
INFO
FUEL
Use regular gasoline. Always use fresh, name
brand gasoline.
WARNING
Do not overfill the fuel tank. Avoid spilling
fuel on the hot engine. Do not fill the fuel
tank above the bottom of the filler tube 1
as shown in the illustration or it may over-
flow when the fuel heats up later and
expands.
a Fuel level
CAUTION:
Use only unleaded gasoline. The use of
leaded gasoline will cause severe damage
to the engine internal parts such as valves,
piston rings, and exhaust system, etc.
Recommended fuel: For USA, AUS and NZ: Unleaded gasoline only
For CDN, EUROPE and ZA: Regular unleaded gasoline
only
Fuel tank capacity: Total: 3.1 L (0.68 Imp gal, 0.82 US gal)
Reserve: 0.4 L (0.09 lmp gal, 0.11 US gal)
FUEL

GEN
INFO
1 - 13
CLEANING AND STORAGE
EC1B0000
CLEANING AND STORAGE
EC1B1000
CLEANING
Frequent cleaning of your machine will
enhance its appearance, maintain good overall
performance, and extend the life of many com-
ponents.
1. Before washing the machine, block off the
end of the exhaust pipe to prevent water
from entering.
2. If the engine is excessively greasy, apply some degreaser to it with a paint brush. Do
not apply degreaser to the chain, sprock-
ets, or wheel axles.
3. Rinse the dirt and degreaser off with a gar- den hose; use only enough pressure to do
the job.
CAUTION:
Excessive hose pressure may cause water
seepage and contamination of wheel bear-
ings, front forks, brakes and transmission
seals. Many expensive repair bills have
resulted from improper high pressure
detergent applications such as those avail-
able in coin-operated car washers.
4. After the majority of the dirt has been hosed off, wash all surfaces with warm
water and a mild detergent. Use an old
toothbrush to clean hard-to-reach places.
5. Rinse the machine off immediately with clean water, and dry all surfaces with a soft
towel or cloth.
6. Immediately after washing, remove excess water from the chain with a paper towel
and lubricate the chain to prevent rust.
7. Clean the seat with a vinyl upholstery cleaner to keep the cover pliable and
glossy.
8. Automotive wax may be applied to all
painted or chromed surfaces. Avoid combi-
nation cleaner-waxes, as they may contain
abrasives.
9. After completing the above, start the engine and allow it to idle for several min-
utes.
EC182001
STORAGE
If your machine is to be stored for 60 days or
more, some preventive measures must be
taken to avoid deterioration. After cleaning the
machine thoroughly, prepare it for storage as
follows:
1. Drain the fuel tank, fuel lines, and the car-
buretor float bowl.
2. Remove the spark plug, pour a tablespoon of SAE 10W-30 motor oil in the spark plug
hole, and reinstall the plug. Set the engine
stop switch to “”, turn the engine over
several times with starter. (This will coat
the cylinder walls with oil.)
3. Remove the drive chain, clean it thoroughly with solvent, and lubricate it. Reinstall the
chain or store it in a plastic bag tied to the
frame.
4. Lubricate all control cables.
5. Block the frame up to raise the wheels off the ground.
6. Tie a plastic bag over the exhaust pipe out-
let to prevent moisture from entering.
7. If the machine is to be stored in a humid or salt-air environment, coat all exposed
metal surfaces with a film of light oil. Do not
apply oil to rubber parts or the seat cover.
NOTE:
Make any necessary repairs before the
machine is stored.

SPEC
2 - 1
EC200000
SPECIFICATIONS
EC211000
GENERAL SPECIFICATIONS
Model name: TT-R50EV (USA, CDN, AUS, NZ)TT-R50E (Europe, ZA)
Model code number: 1P61 (USA) 1P62 (CDN)
1P63 (Europe, AUS, NZ, ZA)
Dimensions: Overall length 1,305 mm (51.4 in)
Overall width 595 mm (23.4 in)
Overall height 775 mm (30.5 in)
Seat height 555 mm (21.9 in)
Wheelbase 925 mm (36.4 in)
Minimum ground clearance 135 mm (5.31 in)
Dry weight: Without oil and fuel 54.0 kg (119 lb)
Engine: Engine type Air cooled 4-stroke, SOHC
Cylinder arrangement Forward-inclined single cylinder
Displacement 49.5 cm
3 (3.02 cu.in)
Bore × stroke 36.0 × 48.6 mm (1.42 × 1.91 in)
Compression ratio 9.5 : 1
Compression pressure (STD) 1,300 kPa (13 kg/cm
2, 185 psi) at 600 r/min
Starting system Electric starter
Lubrication system: Wet sump
Oil type or grade: Engine oil
(For USA and CDN)
At –10 °C (14 °F) or higher È
Yamalube 4 (10W-30) or SAE 10W-30 type
SE/SF/SG motor oil
At 5 °C (41 °F) or higher É
Yamalube 4 (20W-40) or SAE 20W-40 type
SE/SF/SG motor oil
(Except for USA and CDN)
API “SE/SF/SG ” or higher grade
0 10 30 50 70 90 110 130
-20 -10 0 10
20
30 40 50
È
É
˚F
˚C
GENERAL SPECIFICATIONS

SPEC
2 - 2
Oil capacity:
Engine oil Periodic oil change 0.8 L (0.70 Imp qt, 0.85 US qt)
Total amount 1.0 L (0.88 Imp qt, 1.06 US qt)
Air filter: Wet element
Fuel: Type Unleaded gasoline only (USA, AUS and NZ) Regular unleaded gasoline only
(CDN, Europe and ZA)
Tank capacity 3.1 L (0.68 Imp gal, 0.82 US gal)
Reserve amount 0.4 L (0.09 Imp gal, 0.11 US gal)
Carburetor: Type VM11
Manufacturer MIKUNI
Spark plug: Type CR7HSA
Manufacturer NGK
Gap 0.6 ~ 0.7 mm (0.024 ~ 0.028 in)
Clutch type: Wet, multiple-disc and centrifugal automatic
Transmission: Primary reduction system Spur gear
Primary reduction ratio 67/18 (3.722)
Secondary reduction system Chain drive
Secondary reduction ratio 37/13 (2.846)
Transmission type Constant mesh, 3-speed
Operation Left foot operation
Gear ratio: 1st 39/12 (3.250) 2nd 33/19 (1.736)
3rd 28/23 (1.217)
Chassis: Frame type Steel tube backbone
Caster angle 25.50 °
Trail 34.0 mm (1.34 in)
Tire: Type With tube
Size (front) 2.50-10 4PR
Size (rear) 2.50-10 4PR
Manufacturer (front and rear) CHENG SHIN
Type (front and rear) KNOBBY
Tire pressure (front and rear) 100 kPa (1.00 kgf/cm
2, 14.2 psi)
Brake: Front brake type Drum brake
Operation Right hand operation
Rear brake type Drum brake
Operation Right foot operation
GENERAL SPECIFICATIONS
1
2
3
4
5
6

3 - 1
INSPADJ
MAINTENANCE INTERVALS
EC300000
REGULAR INSPECTION AND ADJUSTMENTS
MAINTENANCE INTERVALS
The following schedule is intended as a general guide to maintenance and lubrication. Bear in mind
that such factors as weather, terrain, geographical location, and individual usage will alter the
required maintenance and lubrication intervals. If you are a doubt as to what intervals to follow in
maintaining and lubricating your machine, consult your Yamaha dealer.
No. ITEM CHECKS AND
MAINTENANCE JOBS WHICH-
EVER
COMES
FIRST INITIAL EVERY
month 1 6 12
hours 30 60 120
1 * Fuel line Check fuel hoses for cracks or damage.
Replace if necessary.
√

√
2 Spark plug Check condition.
Adjust gap and clean.
√

√
3 * Valve clearance Check and adjust valve clearance when engine is
cold.
√

4 * Air filter element Clean with solvent.
Replace if necessary.
√

√
5 * Breather system Check ventilation hose for cracks or damage.
Replace if necessary.
√

√
√
6 * Carburetor Check engine idling speed and starter operation.
Adjust if necessary.
√

√
√
7 Exhaust system Check for leakage.
Tighten if necessary.
Replace gasket if necessary.
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√
8 Engine oil Change (warm engine before draining). √
√
√
9 * Clutch Check operation.
Adjust if necessary.
√

√
√
10 * Front brake Check operation.
Adjust brake lever free play and replace brake shoes
if necessary.
√

√
√
11 * Rear brake Check operation.
Adjust brake pedal free play and replace brake shoes
if necessary. √

√
√
12 * Wheels Check runout, spoke tightness and for damage.
Tighten spokes if necessary.
√

√
√
13 * Tires Check tread depth and for damage.
Replace if necessary.
Check air pressure.
Correct if necessary.
√

√
14 * Wheel bearings Check bearings for smooth operation.
Replace if necessary.
√

√
15 * Swingarm Check swingarm pivoting point for play.
Correct if necessary.
Lubricate with lithium soap based grease. √

√
√
16 Drive chain Check chain slack/alignment and condition.
Adjust and lubricate chain. Every ride
17 * Steering bearings Check bearing assemblies for looseness.
Lubricate with lithium soap based grease every
120 hours or 12 months (whichever comes first).
√

√
18 Brake lever pivot
shaft Apply lithium soap based grease lightly.
√
√
√
19 Brake pedal pivot
shaft Apply lithium soap based grease lightly.
√
√
√
3

3 - 3
INSPADJ
PRE-OPERATION INSPECTION AND MAINTENANCE
PRE-OPERATION INSPECTION AND MAINTENANCE
Before riding for break-in operation, practice or a race, make sure the machine is in good operating
condition.
Before using this machine, check the following points.
GENERAL INSPECTION AND MAINTENANCE
Item Routine Page
Fuel Check that a fresh gasoline is filled in the fuel tank. Check the fuel line
for leakage. P.1-11
Engine oil Check that the oil level is correct. Check the crankcase for leakage. P.3-7 ~ 9
Throttle Check for proper throttle cable operation. P.3-4 ~ 5
Brakes Check the play of front and rear brake and effect of front and rear
brake. P.3-14 ~ 15
Drive chain Check chain slack and alignment. Check that the chain is lubricated
properly. P.3-16 ~ 18
Wheels and tires Check pressure/runout/spoke tightness/bead stopper/axle nuts. P.3-19 ~ 20
Steering Check that the handlebar can be turned smoothly and have no exces-
sive play. P.3-20 ~ 21
Front forks and rear
shock absorber assembly Check that they operate smoothly and there is no oil leakage. P.3-18
Cables (wires) Check that the throttle cable move smoothly. Check that they are not
caught when the handlebars are turned. —
Muffler Check that the muffler is tightly mounted and has no cracks. P.4-3
Sprocket Check that the driven sprocket tightening nut is not loose. P.3-15
Lubrication Check for smooth operation. Lubricate if necessary. P.3-22
Spark plug Check color/condition. P.3-23
Fittings/fasteners Check all – tighten as necessary. P.2-13
Lead connectors Check that the AC magneto, CDI unit, and ignition coil are connected
tightly. P.1-5