fuel filter YAMAHA TTR90 2006 Betriebsanleitungen (in German)

1 - 11
GEN
INFO
CONTROL FUNCTIONS
FUEL COCK
The fuel cock supplies fuel from the tank to
carburetor while filtering the fuel. The fuel cock
has the three positions:
OFF: With the lever in this position, fuel will not
flow. Always return the lever to this posi-
tion when the engine is not running.
ON: With the lever in this position, fuel flows
to the carburetor. Normal riding is done
with the lever in this position.
RES: This indicates reserve. If you run out of
fuel while riding, move the lever to this
position. FILL THE TANK AT THE FIRST
OPPORTUNITY. BE SURE TO SET
THE LEVER TO “ON” AFTER REFUEL-
ING.
STARTER LEVER (CHOKE)
When cold, the engine requires a richer air/fuel
mixture for starting. A separate starter circuit,
which is controlled by the starter lever 1, sup-
plies this mixture.
Pull the lever out to open the circuit (for start-
ing) and push the lever in to close the circuit.
FUEL TANK CAP
Remove the fuel tank cap 1 by turning
counter-clockwise.
WARNING
Do not overfill the fuel tank. Avoid spilling
fuel on the hot engine.
1
TOOL KIT
Spark plug wrench
Spark plug wrench 1 is used to remove and
install the spark plug.
Screw driver
This tool is used for preventive maintenance
and minor repairs.
1

SPEC
2 - 2 Oil type or grade:
Engine oil
(For USA and CDN)
At –10 °C (10 °F) or higher È
Yamalube 4 (10W-30) or SAE 10W-30 type
SE/SF/SG motor oil
At 5 °C (40 °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
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 type element
Fuel:
Type Unleaded gasoline only (USA, AUS and NZ)
Regular unleaded gasoline only
(CDN, Europe and ZA)
Tank capacity 4.2 L (0.92 Imp gal, 1.11 US gal)
Reserve amount 0.5 L (0.11 Imp gal, 0.13 US gal)
Carburetor:
Type VM16SH
Manufacturer MIKUNI
Spark plug:
Type CR6HSA/U20FSR-U
Manufacturer NGK/DENSO
Gap 0.6 ~ 0.7 mm (0.02 ~ 0.03 in)
Clutch type: Wet, multiple-disc and centrifugal automatic
0 10 30 50 70 90 110 130
-20 -10 01020
30 40 50
È
É
˚F
˚C
GENERAL SPECIFICATIONS
1
2

3 - 1
INSP
ADJ
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.
NOTE:
From 18 months or 210 hours, repeat the maintenance intervals starting from 6 months or
90 hours.
Items marked with an asterisk should be performed by a Yamaha dealer as they require special
tools, data and technical skills.
No. ITEMCHECKS AND
MAINTENANCE JOBSWHICH-
EVER
COMES
FIRSTINITIAL EVERY
month 1 6 12
hours 30 90 150
1 * Fuel lineCheck fuel hoses for cracks or damage.
Replace if necessary.√
√
2 Spark plugCheck condition.
Adjust gap and clean.√
√
3 * Valve clearanceCheck and adjust valve clearance when engine is
cold.√
4 * Air filter elementClean with solvent.
Replace if necessary.√
√
5 * Breather systemCheck ventilation hose for cracks or damage.
Replace if necessary.√
√
√
6 * CarburetorCheck engine idling speed and starter operation.
Adjust if necessary.√
√
√
7 Exhaust systemCheck for leakage.
Tighten if necessary.
Replace gasket if necessary.√
√
8 Engine oil Change (warm engine before draining).
√
√
√
9 ClutchCheck operation.
Adjust or replace cable.√
√
√
10 * Front brakeCheck operation.
Adjust brake lever free play and replace brake shoes
if necessary.√
√
√
11 * Rear brakeCheck operation.
Adjust brake pedal free play and replace brake shoes
if necessary.√
√
√
12 * WheelsCheck runout, spoke tightness and for damage.
Tighten spokes if necessary.√
√
√
13 * TiresCheck tread depth and for damage.
Replace if necessary.
Check air pressure.
Correct if necessary.√
√
14 * Wheel bearingsCheck bearings for smooth operation.
Replace if necessary.√
√
15 * SwingarmCheck swingarm pivoting point for play.
Correct if necessary.
Lubricate with lithium soap based grease.√
√
√
16 Drive chainCheck chain slack/alignment and condition.
Adjust and lubricate chain.Every ride
3

4 - 1
ENG
ENGINE
CARBURETOR
Extent of removal:
1 Carburetor removal
Extent of removal Order Part name Q’ty Remarks
CARBURETOR REMOVAL
Preparation for removal Fuel tank
1 Clamp (air filter joint) 1 Loosen the screw (air filter joint).
2 Carburetor heater lead 1
3 Air vent hose 1
4 Fuel hose 1
5Bolt 2
6 Carburetor assembly 1
7O-ring 2
8Spacer 1
9 Carburetor top 1
10 Starter plunger assembly 1
1
CARBURETOR

4 - 8
ENGCYLINDER HEAD
CYLINDER HEAD
Extent of removal:
1 Cylinder head removal
Extent of removal Order Part name Q’ty Remarks
CYLINDER HEAD REMOVAL
Preparation for removal Seat, fuel tank and rear fender
Exhaust pipe
Carburetor Refer to “CARBURETOR” section.
Air filter case and starter lever
1 Plug cap/spark plug 1/1
2 Crankshaft end cover/O-ring 1/1
3 Timing plug/O-ring 1/1
4 Camshaft sprocket cover/O-ring 1/1
5 Tappet cover (intake)/O-ring 1/1
6 Tappet cover (exhaust)/O-ring 1/1
7 Camshaft sprocket bolt/washer 1/1
Refer to “REMOVAL POINTS”. 8 Timing chain tensioner 1
9 Gasket 1
1

4 - 45
ENGCRANKCASE AND CRANKSHAFT
CRANKCASE AND CRANKSHAFT
Extent of removal Order Part name Q’ty Remarks
CRANKCASE SEPARATION
AND CRANKSHAFT REMOVAL
Preparation for removal Seat, fuel tank and rear fender
Exhaust pipe
Air filter case
Carburetor Refer to “CARBURETOR” section.
Drain the engine oil Refer to “ENGINE OIL REPLACEMENT”
section in the CHAPTER 3.
Engine guard and drive sprocket
Engine assembly From the chassis.
Cylinder head Refer to “CYLINDER HEAD” section.
Cylinder and piston Refer to “CYLINDER AND PISTON” sec-
tion.
Clutch housing and clutch carrier Refer to “CLUTCH” section.
Kick axle assembly Refer to “KICK AXLE” section.