fuel pressure YAMAHA TTR90 2006 Owners Manual

GEN
INFO
1 - 14
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. With the engine
stop switch pushed in, kick the engine over
several times to 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-R90V (CDN, AUS, NZ)
TT-R90 (Europe, ZA)
TT-R90EV (USA, CDN, AUS, NZ)
TT-R90E (Europe, ZA)
Model code number: TT-R90:
5HNW (Europe, AUS, NZ, ZA)
5HNX (CDN)
TT-R90E:
3P21 (USA)
3P22 (Europe, AUS, NZ, ZA)
3P23 (CDN)
Dimensions:
Overall length 1,525 mm (57.0 in)
Overall width 605 mm (23.8 in)
Overall height 865 mm (34.1 in)
Seat height 625 mm (24.6 in)
Wheelbase 1,040 mm (40.9 in)
Minimum ground clearance 160 mm (6.3 in)
Dry weight:
Without oil and fuel (TT-R90) 60.0 kg (132.3 lb)
(TT-R90E) 63.0 kg (138.9 lb)
Engine:
Engine type Air cooled 4-stroke, SOHC
Cylinder arrangement Single cylinder, forward inclined
Displacement 89 cm
3 (5.43 cu.in)
Bore × stroke 47.0 × 51.8 mm (1.85 × 2.04 in)
Compression ratio 8.5 : 1
Compression pressure (STD) 1,000 kPa (10 kg/cm
2, 145 psi) at 1,000 r/min
Starting system (TT-R90) Kick starter
(TT-R90E) Kick and electric starter
Lubrication system: Wet sump
GENERAL SPECIFICATIONS

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