tire type YAMAHA TTR90 2007 Owners Manual

PERIODIC MAINTENANCE AND MINOR REPAIR
6-10
6
EAU41632
Cleaning the air filter element The air filter element should be cleaned
at the intervals specified in the periodic
maintenance and lubrication chart.
Clean the air filter element more fre-
quently if you are riding in unusually
wet or dusty areas.
To clean the air filter element
1. Remove panel A. (See page 6-6.)
2. Remove the air filter case cover by
removing the screws.
3. Pull the sponge material and the
mesh out.4. Clean the mesh with solvent, and
then wipe the solvent off.
5. Clean the sponge material with
solvent, and then squeeze the re-
maining solvent out.
WARNING
EWA10430
Use only a dedicated parts cleaning
solvent. To avoid the risk of fire or
explosion, do not use gasoline orsolvents with a low flash point.CAUTION:
ECA10510
To avoid damaging the foam materi-
al, handle it gently and carefully, anddo not twist or wring it.
6. Apply oil of the recommended type
to the entire surface of the sponge
material, and then squeeze the ex-
cess oil out.NOTE:The sponge material should be wet butnot dripping.
7. Insert the mesh and the sponge
material into the air filter case.
1. Air filter case cover
2. Screw
1. Sponge material
2. Air filter mesh
Recommended oil:
Yamaha foam air filter oil or other
quality foam air filter oil
U3P281E0.book Page 10 Monday, April 17, 2006 11:26 AM

SPECIFICATIONS
8-2
8
Fuel:Recommended fuel:
TT-R90 Regular unleaded gasoline only
(AUT)(BEL)(CAN)(CHE)(DEU)(DNK)(ESP
)(FIN)(FRA)(GBR)(GRC)(IRL)(NLD)(NOR)
(PRT)(SWE)(ZAF)
TT-R90 Unleaded gasoline only
(AUS)(NZL)
TT-R90E Regular unleaded gasoline only
(AUT)(BEL)(CAN)(CHE)(DEU)(DNK)(ESP
)(FIN)(FRA)(GBR)(GRC)(IRL)(NLD)(NOR)
(PRT)(SWE)(ZAF)
TT-R90E Unleaded gasoline only
(AUS)(NZL)
Fuel tank capacity:
4.2 L (1.11 US gal) (0.92 Imp.gal)
Fuel reserve amount:
0.5 L (0.13 US gal) (0.11 Imp.gal)Carburetor:Manufacturer:
MIKUNI
Type × quantity:
VM16SH x 1Spark plug (s):Manufacturer/model:
NGK/CR6HSA
Manufacturer/model:
DENSO/U20FSR-U
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)Clutch: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:
35/14 (2.500)
Transmission type:
Constant mesh 3-speed
Operation:
Left foot operation
Gear ratio:
1st:
37/13 (2.846)
2nd:
33/19 (1.736)
3rd:
28/23 (1.217)Chassis:Frame type:
Steel tube backbone
Caster angle:
24.83 °
Trail:
56.0 mm (2.20 in)Front tire:Type:
With tube
Size:
2.50-14 4PR
Manufacturer/model:
CHENG SHIN/KNOBBY
Rear tire:Type:
With tube
Size:
3.00-12 4PR
Manufacturer/model:
CHENG SHIN/KNOBBYTire air pressure (measured on cold
tires):
Front:
100 kPa (15 psi) (1.00 kgf/cm²)
Rear:
100 kPa (15 psi) (1.00 kgf/cm²)
Front wheel:Wheel type:
Spoke wheel
Rim size:
14x1.40Rear wheel:Wheel type:
Spoke wheel
Rim size:
12x1.60Front brake:Type:
Drum brake
Operation:
Right hand operationRear brake:Type:
Drum brake
Operation:
Right foot operation
U3P281E0.book Page 2 Monday, April 17, 2006 11:26 AM