2006 YAMAHA TTR50 oil filter

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

SPEC
2 - 9
Carburetor:
I. D. mark 1P61 00 ----
Main jet (M.J) #62.5 ----
Main nozzle (N.J) E-2M ----
Main air jet (M.A.J) ø 1.4 ----
Jet needle (J.N) 4DL22-1 ----
Cutaway (C.A) 2.5 ----
Pilot outlet (P.O) ø 0.8 × 1.5 ----
Pilot jet (P.J) #12.5 ----
Valve seat size (V.S) ø 1.2 ----
Starter jet 1 (G.S.1) #20 ----
Starter jet 2 (G.S.2) ø 0.6 ----
Float height (F.H) 18.5 mm (0.73 in) ----
Fuel level (F.L) 2.0 ~ 3.0 mm (0.08 ~ 0.12 in) ----
Engine idle speed 1,600 ~ 1,800 r/min ----
Lubrication system: Oil filter type Wire mesh type ----
Oil pump type Trochoid type ----
Inner-rotor-to-outer-rotor-tip clearance 0.15 mm or less (0.0061 in or less)0.20 mm
(0.0079 in)
Outer-rotor-to-oil-pump-housing clearance 0.07 mm (0.0028 in)0.15 mm
(0.0059 in)
Oil-pump-housing-to-inner-rotor-and-outer-
rotor clearance 0.06 ~ 0.10 mm
(0.0024 ~ 0.0039 in)0.17 mm
(0.0067 in)
Item Standard Limit
MAINTENANCE SPECIFICATIONS

SPEC
2 - 10
Part to be tightened Thread size Q
’ty Tightening torque
Remarks
Nm m ·kg ft ·lb
Cylinder head nut M8 × 1.25 4 22 2.2 16
Cylinder head bolt M6 × 1.0 2 10 1.0 7.2
Spark plug M10 × 1.0 1 13 1.3 9.4
Camshaft sprocket cover bolt M6 × 1.0 2 10 1.0 7.2
Tappet cover M45 × 1.5 2 18 1.8 13
Exhaust pipe stud bolt M6 × 1.0 2 7 0.7 5.1
Rotor nut M12 × 1.25 1 48 4.8 35
Timing chain guide stopper M6 × 1.0 2 10 1.0 7.2
LT
Valve clearance adjust screw locknut M5 × 0.5 2 7 0.7 5.1
Camshaft sprocket M8 × 1.25 1 26 2.6 19
Camshaft bearing retainer M6 × 1.0 1 10 1.0 7.2
LT
Timing chain tensioner cap bolt M8 × 1.25 1 8 0.8 5.8
Timing chain tensioner M6 × 1.0 2 10 1.0 7.2
Oil pump assembly M6 × 1.0 2 7 0.7 5.1
LT
Engine oil drain bolt M12 × 1.5 1 20 2.0 14
Intake manifold (cylinder head side) M6 × 1.0 2 7 0.7 5.1
Intake manifold (carburetor side) M6 × 1.0 2 7 0.7 5.1
Carburetor heater M8 × 1.25 1 3 0.3 2.2
Clamp (air filter joint) M4 × 0.7 1 2 0.2 1.4
Exhaust pipe M6 × 1.0 2 7 0.7 5.1
Muffler M8 × 1.25 1 38 3.8 27
Muffler cover M6 × 1.0 4 7 0.7 5.1
Spark arrester M6 × 1.0 3 10 1.0 7.2
Crankcase M6 × 1.0 10 10 1.0 7.2
Crankcase cover (left) M6 × 1.0 8 10 1.0 7.2
Drive sprocket cover M6 × 1.0 2 7 0.7 5.1
Timing plug M14 × 1.5 1 7 0.7 5.1
Crankshaft end cover M32 × 1.5 1 7 0.7 5.1
Crankcase cover (right) M6 × 1.0 9 10 1.0 7.2
Clutch adjuster locknut M8 × 1.25 1 6 0.6 4.3
Cylinder head stud bolt M8 × 1.25 4 13 1.3 9.4
Starter clutch and rotor M6 × 1.0 3 14 1.4 10 Stake
Clutch housing nut M14 × 1.0 1 70 7.0 50
Pressure plate M5 × 0.8 3 5 0.5 3.6
Primary driven gear M14 × 1.0 1 70 7.0 50
Stopper bolt M8 × 1.25 1 23 2.3 17
LT
Shift pedal M6 × 1.0 1 10 1.0 7.2
Pickup coil M6 × 1.0 2 10 1.0 7.2
LT
Stator assembly M6 × 1.0 3 10 1.0 7.2LT
Neutral switch M10 × 1.25 1 18 1.8 13
MAINTENANCE SPECIFICATIONS

2 - 18
SPECCABLE ROUTING DIAGRAM
IAir filter case
J Frame
K Ignition coil
L Brake cable
È Make sure that there is no slack in the wire har-
ness in the area shown in the illustration.
É Pass the wire harness, then the carburetor air
vent hose through the lead guide.
Ê The couplers of identical colors should be con-
nected. Ë
Pass the start switch lead, main switch lead,
engine stop switch lead, throttle cable, and
starter cable through the cable guide.
Ì Route the throttle cable and starter cable under
the start switch lead, main switch lead, and
engine stop switch lead.
2
É
BÍ
B Ñ
BÏ
F Î
LÕ
\b
8 \b
×
0
\f Ø
E
E Ò 6
\f
7
8
\b
0
\f
C
D
H
H
7
J
I
I
K 8
7
\b
C
0
\f
E H
G 345
Ê
Ì
Ð
ÙÓ
Ô
Ô
È
B
A C
C
B
A
B-B
A-A
C-C
1

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.
√

√
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 - 2
INSPADJ
MAINTENANCE INTERVALS
* : Since these items requires special tools data and technical skills, they should be serviced.
NOTE:
The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
20 Sidestand pivot Check operation.
Apply lithium soap based grease lightly.
√

√
21 * Front fork Check operation and for grease leakage.
Replace if necessary.
√

√
22 * Shock absorber
assembly Check operation and for oil leakage.
Replace if necessary.
√

√
23 * Control cables Apply Yamaha chain and cable lube or engine oil
10W-30 thoroughly.
√

√
√
24 * Throttle grip hous-
ing and cable Check operation and free play.
Adjust the throttle cable free play if necessary.
Lubricate the throttle grip housing and cable.
√

√
√
25 * Chassis fasteners Check all chassis fitting and fasteners.
Correct if necessary.
√

√
√
26 Battery Check terminal for looseness and corrosion. √
No. ITEM
CHECKS AND
MAINTENANCE JOBS WHICH-
EVER
COMES FIRST INITIAL EVERY
month 1 6 12
hours 30 60 120
1
2
3
4
5
6

3 - 7
INSPADJ
2. Clean:
Air filter element
Clean it with solvent.
NOTE:
After cleaning, remove the remaining solvent
by squeezing the element.
CAUTION:
 Do not twist the element when squeezing
the element.
 Leaving too much of solvent in the ele-
ment may result in poor starting.
3. Inspect: Air filter element
Damage → Replace.
4. Apply: Foam-air-filter oil or engine oil
To the element.
NOTE:
Squeeze out the excess oil. Element should be
wet but not dripping.
5. Install:
Air filter element
 Air filter case cover
 Air scoop (left)
 Seat assembly
ENGINE OIL LEVEL INSPECTION
1. Start the engine, warm it up for several
minutes, and then turn off the engine and
wait for five minutes.
2. Place the machine on a level place and hold it up on upright position by placing the
suitable stand under the engine.
3. Remove: Oil filler cap 1
1
AIR FILTER CLEANING/
ENGINE OIL LEVEL INSPECTION

4 - 41
ENGOIL PUMP
INSPECTION
Oil pump
1. Measure:Inner-rotor-to-outer-rotor tip clearance a
(between the inner rotor 1 and the outer
rotor 2)
 Outer-rotor-to-oil-pump housing clear-
ance b
(between the outer rotor 2 and the rotor
housing 3)
Out of specification → Replace the oil
pump assembly.
 Oil-pump-housing-to-inner-and-outer-
rotor clearance c (between the rotor
housing 3 and the rotors 1 2 )
Out of specification → Replace the oil
pump assembly.
Inner-rotor-to-outer-rotor tip
clearance a:
0.15 mm or less
(0.0061 in or less)
: 0.20 mm (0.0079 in)
Outer-rotor-to-oil-pump housing
clearance b:
0.07 mm
(0.0028 in)
: 0.15 mm (0.0059 in)
Oil-pump-housing-to-inner-and-
outer-rotor clearance c:
0.06 ~ 0.10 mm
(0.0024 ~ 0.0039 in)
: 0.17 mm (0.0067 in)
Rotary filter and oil strainer
1. Inspect:
Oil strainer 1
Damage → Replace.
2 Upper side
3 Lower side